This is an excellent channel and the only one I see really looking for DIY solutions for the threat of thermal detection. My hat is off to you for publishing your exploits good sir.
I dont normally sub people but i really appreciate a person who does stuff for themselves. This is awesome. Now i gotta check your other videos. No BS talking and straight to the point. Problems and solutions make the best videos.
Awesome video. Have been looking for thermal evasion materials and cloaks available on the market but they're all damn expensive and never mention the materials used! Would really love to see a DIY version of what they're offering with the multispectral protection (as the proliferation of thermal cameras is so large). I'm sure with a bit of research you can DIY what is equivalent to the ProAPT gucci suits and get it fitting over packs and be super functional. So far seems to get 90%+ of the job done so looking forward to part 2!
It is incredibly hard to hide from thermal. I appreciate the effort and you are doing what you can with what you have. I think if you wear the ghillie top as long as you wore the jeans, the ghillie top wouldn't be hiding you're heat signature as well.
I recently acquired some of the thermal cloak material the US and Canadian military use. I am working on a video comparing these homespun alternatives I’m making to professional military grade right now. Looks promising.
That Thermal Guy, you should try a flak jacket and helmet under a Ghost hood. I know people who had some luck with thermal evasion in Ukraine with German flak jackets with shoulder pads with Kevlar, and helmet under the ghosthood, or a ghillie suit. I tested it it works quite good. If you also have a backpack it is awesome, the material is not touching the head, shoulders, or back.
Thanks for the video, I've got a new idea try pleating (like an accordion) strips of that mesh (or window screen) and sticking that on places where you can't have hanging fabric (like on top of the shoulders, or on top of a hat) for a breathable, non conductive airgap to then put another fabric layer over.
Love it. I wanted to try something similar as well. I saw British SAS use a rolled/folded mesh to create loops. I like your idea about using accordion stand offs on body contact points like shoulders where we traditionally have problems because of the contact heat up.
Hey there. I did one experiment on film with a loop mock up (and a few other tests). ruclips.net/video/2cKuq5tc5oE/видео.htmlsi=28EgtbCYjWqF2hzA The looping was effective enough it warranted more testing. I have since re-run the test with more overlap between the loops so at any given point there is always at least two layers of loop fabric, and it improved performance over shown in this video (which was already good).
Amazing video, I wonder if I could purchase some of that material too, where did you purchase from exactly.. I also wonder if they allow export to the UK, I've tried to purchase a thermal ghillie system from the UK where I reside but they won't allow sales to civilians, only UK armed forces and alliance forces.
As with most things, it only takes a few minutes to heat up and stabilize. Think about it like this. It’s cold outside. So you put on a coat. How long does it take for that coat to get warm inside? 30 seconds? One minute? When does it stop increasing in temperature as you sit there? For most people, the answer is mere minutes. Maybe less. Same thing here. If i directly grab the material or if it’s in direct contact with my skin, it’s heated up in seconds. If I don’t and it has indirect contact, it takes a minute to heat up. But at that point, it stabilizes. A coat doesn’t get hotter the longer you wear it. It gets to a point, quite rapidly, of temperature it will keep and hold, and then it stabilizes. The materials I test are no different. You see the heat patterns within seconds to a minute. It may have a couple minute delay to push through a temperature change across an insulative barrier. But after that, what you see is what you get. I’ve tested this to make sure I’m not crazy. I’ve looked at the heat signature of myself and my son wearing different types of garments with different insulation properties, then walked around for an hour or two in the forest and come back and rechecked our thermal signatures. With very little exception the signatures are identical between the 5 minutes mark and the hour and a half mark. And that exception is mostly due to sweat if wearing only a t shirt in hotter weather. I have also walked around town, and in stores, shooting thermal imaging footage. The things people wearing have a specific point they heat up to and then stabilize. And that’s it. That’s all you get. For instance, in the video posted here, I was wearing that t shirt, blue jeans and boots for 5 hours before filming. But they weren’t glowing like the sun. And in the outdoor footage in this video you can see that my street clothes were actually generating a smaller heat signature than the ground and even the trees in some places. Despite wearing clothing with minimal insulation for five hours, dirt and bark was brighter than I was. Lol.
@@ThatThermalGuy that makes sense man thanks for the info. I would have assumed that the layers around you would eventually heat up and change too. Idk what's more tricky thermal or night vision, if you had infrared capability it would be cool to see if your camo will hide you from both
@@michaelsorenson3887 I actually have top tier night vision too. Autogated Gen 3 white phosphor L3 unfilmed aviation grade NVG. And I also have mid tier, Gen 2 gear as well. I don’t have as much time to get the night vision work done during summer because where I’m at it doesnt get dark until almost 1030 to 11 at night. In winter though, it starts getting dark at 430. So as winter comes I’ll have more NVG videos coming out since I’ll have more time to do them during waking hours (I have to get up at 5am for work so I can’t stay up very late).
I’m going to repost a reply I made elsewhere which mostly addresses this. :) As with most things, it only takes a few minutes to heat up and stabilize. Think about it like this. It’s cold outside. So you put on a coat. How long does it take for that coat to get warm inside? 30 seconds? One minute? When does it stop increasing in temperature as you sit there? For most people, the answer is mere minutes. Maybe less. Same thing here. If i directly grab the material or if it’s in direct contact with my skin, it’s heated up in seconds. If I don’t and it has indirect contact, it takes a minute to heat up. But at that point, it stabilizes. A coat doesn’t get hotter the longer you wear it. Otherwise they would be unbearable within minutes. Likewise, we couldn’t wear pants, or shirts, because if they kept getting hotter as the hours passed, we would all die if heat stroke from our clothing. But that doesn’t happen. It gets to a point, quite rapidly, of temperature the garments will keep and hold, and then it stabilizes. That’s it. The materials I test are no different. You see the heat patterns within seconds to a minute. It may have a couple minute delay to push through a temperature change across an insulative barrier. But after that, what you see is what you get. I’ve tested this to make sure I’m not crazy. I’ve looked at the heat signature of myself and my son wearing different types of garments with different insulation properties, then walked around for an hour or two in the forest and come back and rechecked our thermal signatures. With very little exception the signatures are identical between the 5 minutes mark and the hour and a half mark. And that exception is mostly due to sweat if wearing only a t shirt which gets soaked in hotter weather, the area that gets damp from sweat changes it’s signature slightly, and in general, it’s to the betterment of helping mask your signature. Remember, the purpose of sweat is to cause evaporative cooling. I have also walked around town, and in stores, shooting thermal imaging footage. The things people wearing have a specific point they heat up to and then stabilize. And that’s it. That’s all you get. For instance, in the video posted here, I was wearing that t shirt, blue jeans and boots for 5 hours before filming. But they weren’t glowing like the sun, right? They didn’t just keep getting hotter and hotter even though I was wearing them for five hours. And in the outdoor footage in this video you can see that my street clothes were actually generating a smaller heat signature than the ground and even sone of the trees in some places. Despite wearing clothing with minimal insulation for five hours, dirt and bark was brighter than I was. Lol. That’s why I’ve done the testing videos I have, with either some time lapse over the course of a minute or two, or sone activity for a minute or two, because that’s really all you need to showcase the properties of a material over time. All that said, returning to current, exposure to the elements rd changes a signature depending on whether you are in direct sun or shade. Your signature will change, as different materials heat and cool, absorb and radiate, and reflect, at different speeds. That’s part of why I’m an advocate of mixed materials in a ghillie whether you need them or not. If you use 100% polyester, then your entire suit heats, reflects, emits, etc at the same pace, and moving between sun and shade, you have a largely uniform response. Mixing in different materials breaks that up. Exampke, if nylon releases stores temp faster than polyester, and you have the two materials interwoven next to each other in ghillie strips, you get a blended jumbled affect, as opposed to a uniform blob effect. Lastly to the point you raised, you are running in a ghillie, while it does still blunt your signature, the act of running completely negates the purpose of the ghillie. You can be seen. So running is lnt really the way you test a Ghillie suit. When judging how well a ghillie works, are you doing that by looking at a model who is laying down is a matched environment as it’s intended purpose? Or are you doing it by watching someone wearing a ghillie go jogging down the street? No. You judge a ghillie by it’s a unity yo mask a person from detection when utilized as intended, in a matched environment, using proper stalking concepts. And just like you don’t go literally running up on a target in a ghillie as a sniper, you don’t go running up on a thermal imager as a hider. If you have to run, you run while you need to, and get to a place where you can effectively hide again, and then you hide again. And as you hide, you cool down again, just like wearing blue jeans in my video here, it returns back to normal temperature rapidly. :)
Someone might want to try this with a ventilated beekeepers suit. It's three layers of mesh The center layer is like waffle and a layer of nylon mesh is on each side. The total of the three layers is longer than a bees stinger. I am thinking one could be died, and have guilie stuff woven or sewn to outer mesh.
@@dandetande288 definitely would like to test that! In the meantime, I bought almost $100 bucks in fabrics today, different types and thicknesses of mesh, including “3D air space mesh”. I’m going to try to replicate this, a piece of thick 3D mesh sandwiched on both sides by heavy standard mesh. Should be breathable, but effective. Would love to get the new keeper suit described. Ready to go commercially available options are fantastic for the general public. :)
I replied. It had my email. I deleted it because I don’t want my email just floating out here. But RUclips should have sent you an email of my post with the email in it.
I’ve done many videos showing how quickly heat seeps through if it’s going to seep through, including time lapse videos which show that, on average, it takes less than two minutes for heat seep to normalize and then it reaches equilibrium with internal heat versus heat dissipation and no matter how long you wear it past that it doesn’t heat up any further. A simple and easy to follow and understand example is this: when you put on a jacket, does the outer surface of the jacket just continuously heat up until it reaches 98.6 F? The obvious answer is no. We don’t walk around with every article of clothing we don being essentially 100 degrees to touch. So there has to be a point at which the material stops heating and the loss of heat to the environment exceeds additional heat stacked on from the body. The point of that equilibrium occurs actually very rapidly. When you first put on a jacket, the material is cold. How long does it take to be comfortable? A minute or two? There’s that two minute number approximation again. Less than two minutes on average seems to be how long it takes to heat up. That’s it. That’s all. There’s a marginal time lag on transfer of heat through to outer shell, then the outer surface also quickly achieves equilibrium. I’ve done tests, checking attire on thermal prior to wearing it, donning attire and checking thermal signature immediately. Watching for a couple minutes until it achieves equilibrium, then I go out for a walk or hike, and spend half an hour to several hours out and about doing everything from sitting in a heated car to going on cross country hikes. Then when I come back, I compare my heat signature to the previous recordings. In most cases the difference hours later, including heated environments or freezing environments, sedentary or vigorous activity, are all rough approximations to what was achieved literally within the first two minutes of it being first put on. Watch some of my other videos. Don’t take my word for it. See it for yourself. I have lots of materials testing and time lapse videos showing what worked, and what failed, and in some cases, what failed spectacularly. If I’m showing something and saying it seems to be working, it’s because it did a decent job under multiple testing situations. I’m not selling anything, and I have a limited bias in findings here (I won’t say no bias, because everyone has some bias of some kind), but I try to present just factual material and actual recordings so people can judge results for themselves regardless of my opinion of the results. I think I have around 90 videos uploaded right now. At one point I had over 150. All doing just this. Testing materials and myths. Go watch my other vids. Most are downright boring and hard to watch because I’m literally just sitting there typing on a computer or watching a movie specifically to allow a material to heat up over time and then showing those super boring drool-fest videos of time lapses of me just sitting there doing nothing in high speed. I have plenty of videos if you want to see time lapse proof, or you want to see the effects I’m referring to for yourself. But one thing remains true through pretty much all of them. I’d say probably 90% of all the heating that’s going to happen, happens within the first minute, whether it’s a wool blanket, bubble wrap, burlap, aluminized tarp, ghillie suit, winter coat, etc. and by the end of the second minute, wherever you’re at, is pretty much where you’re going to be an hour later. The difference from minute 2 or 3 to minute 10 of 15 is pretty small, if you could even tell which was which in a side by side still-frame comparison without being told which was which. Go watch and see. Don’t take my word for it. :)
Here’s an example of a time lapse video I shot which very clearly shows the speed at which fabric heats up and then achieves equilibrium. This is around 40 minutes of actual time under materials (including added on layers) compressed into ten minutes with some sections sped up to show as much as fifteen minutes compressed into ten seconds of video. Again, almost all heating is finished within the first minute of the addition of any material, and cooling is achieved within one minute of the removal of a layer. ruclips.net/video/U2l3XUSM9iE/видео.html
I primarily do testing of normal over the counter commonly available materials for people looking to make their own thermal equipment on a reasonable budget of about a hundred bucks or less. $429 is not budget. Lol. It looks like it is probably effective though. It is based on similar design concepts to what I’ve seen elsewhere and some of the DIY stuff i have done. I have not tested it though. But layered mesh, like they have done, is a proven and effective strategy. I am skeptical though. I don’t see videos testing it except for short periods of time, and in those, I’m starting to see thermal bleed through right as they are terminating the video. Im not convinced on the overall end effectiveness. Ive seen SO MANY deceptive marketing videos for thermal gear. Im very skeptical until i can test it or i see a truly neutral third party test it. But i certainly think it probably does an excellent job compared to many systems from what I’ve seen so far. Thanks for bringing it up.
I think you are missing the point. Criminals HAVE thermal and night vision technology. Gangs, cartels, etc. So do average Joes, hunters, private investigators, etc. there are plenty of lawful reasons to want to know how this technology works and how to reduce its effectiveness beyond military/paramilitary training simulation events (paintball/airsoft/training) which you derogatorily refer to as “LARPing”.
Incredible video man! That's crazy how just that little bit of material can make that much of a difference
This is an excellent channel and the only one I see really looking for DIY solutions for the threat of thermal detection. My hat is off to you for publishing your exploits good sir.
What "threat of thermal detection"?!
I dont normally sub people but i really appreciate a person who does stuff for themselves. This is awesome. Now i gotta check your other videos. No BS talking and straight to the point. Problems and solutions make the best videos.
Very good as always 👍
Awesome video. Have been looking for thermal evasion materials and cloaks available on the market but they're all damn expensive and never mention the materials used! Would really love to see a DIY version of what they're offering with the multispectral protection (as the proliferation of thermal cameras is so large). I'm sure with a bit of research you can DIY what is equivalent to the ProAPT gucci suits and get it fitting over packs and be super functional. So far seems to get 90%+ of the job done so looking forward to part 2!
This is amazing! thank you so much!
It is incredibly hard to hide from thermal. I appreciate the effort and you are doing what you can with what you have. I think if you wear the ghillie top as long as you wore the jeans, the ghillie top wouldn't be hiding you're heat signature as well.
Nice work. Thank You for sharing man.
I recently acquired some of the thermal cloak material the US and Canadian military use. I am working on a video comparing these homespun alternatives I’m making to professional military grade right now. Looks promising.
Intelligent experiment. I suggest a light weight pvc frame to hold the fabric off the skin
Maybe hard nylon mesh will make it rigid enough to stay off the skin for most of the body and rest on the shoulders
@@svrondo247the jute should disperse the heat in such a way it never shows up.
Good idea, works great. impressed.
That Thermal Guy, you should try a flak jacket and helmet under a Ghost hood. I know people who had some luck with thermal evasion in Ukraine with German flak jackets with shoulder pads with Kevlar, and helmet under the ghosthood, or a ghillie suit. I tested it it works quite good. If you also have a backpack it is awesome, the material is not touching the head, shoulders, or back.
Could you post a link of the fabric just so I for sure order the right stuff. Thank you!
Thanks for the video, I've got a new idea try pleating (like an accordion) strips of that mesh (or window screen) and sticking that on places where you can't have hanging fabric (like on top of the shoulders, or on top of a hat) for a breathable, non conductive airgap to then put another fabric layer over.
Love it. I wanted to try something similar as well. I saw British SAS use a rolled/folded mesh to create loops. I like your idea about using accordion stand offs on body contact points like shoulders where we traditionally have problems because of the contact heat up.
@@ThatThermalGuy these loops you mention? Can you show something similar and their affect against thermal?
Hey there. I did one experiment on film with a loop mock up (and a few other tests).
ruclips.net/video/2cKuq5tc5oE/видео.htmlsi=28EgtbCYjWqF2hzA
The looping was effective enough it warranted more testing. I have since re-run the test with more overlap between the loops so at any given point there is always at least two layers of loop fabric, and it improved performance over shown in this video (which was already good).
Good video thanks for the info
Can you post a link to the material?
Amazing video, I wonder if I could purchase some of that material too, where did you purchase from exactly.. I also wonder if they allow export to the UK, I've tried to purchase a thermal ghillie system from the UK where I reside but they won't allow sales to civilians, only UK armed forces and alliance forces.
Order different color jute strands and make your own.
How does it heat up as you stay there for a very long period of time? It would he cool to see how it heats up over hours of having you in it
As with most things, it only takes a few minutes to heat up and stabilize. Think about it like this. It’s cold outside. So you put on a coat. How long does it take for that coat to get warm inside? 30 seconds? One minute? When does it stop increasing in temperature as you sit there? For most people, the answer is mere minutes. Maybe less. Same thing here. If i directly grab the material or if it’s in direct contact with my skin, it’s heated up in seconds. If I don’t and it has indirect contact, it takes a minute to heat up. But at that point, it stabilizes. A coat doesn’t get hotter the longer you wear it. It gets to a point, quite rapidly, of temperature it will keep and hold, and then it stabilizes.
The materials I test are no different. You see the heat patterns within seconds to a minute. It may have a couple minute delay to push through a temperature change across an insulative barrier. But after that, what you see is what you get.
I’ve tested this to make sure I’m not crazy. I’ve looked at the heat signature of myself and my son wearing different types of garments with different insulation properties, then walked around for an hour or two in the forest and come back and rechecked our thermal signatures. With very little exception the signatures are identical between the 5 minutes mark and the hour and a half mark. And that exception is mostly due to sweat if wearing only a t shirt in hotter weather.
I have also walked around town, and in stores, shooting thermal imaging footage. The things people wearing have a specific point they heat up to and then stabilize. And that’s it. That’s all you get.
For instance, in the video posted here, I was wearing that t shirt, blue jeans and boots for 5 hours before filming. But they weren’t glowing like the sun. And in the outdoor footage in this video you can see that my street clothes were actually generating a smaller heat signature than the ground and even the trees in some places. Despite wearing clothing with minimal insulation for five hours, dirt and bark was brighter than I was. Lol.
@@ThatThermalGuy that makes sense man thanks for the info. I would have assumed that the layers around you would eventually heat up and change too. Idk what's more tricky thermal or night vision, if you had infrared capability it would be cool to see if your camo will hide you from both
@@michaelsorenson3887 I actually have top tier night vision too. Autogated Gen 3 white phosphor L3 unfilmed aviation grade NVG. And I also have mid tier, Gen 2 gear as well.
I don’t have as much time to get the night vision work done during summer because where I’m at it doesnt get dark until almost 1030 to 11 at night. In winter though, it starts getting dark at 430. So as winter comes I’ll have more NVG videos coming out since I’ll have more time to do them during waking hours (I have to get up at 5am for work so I can’t stay up very late).
@@ThatThermalGuy understandable, appreciate the content. I'll tune in and hope to see it one day if you ever have the spare time ✌️
How is the yarn? Does it stay in place? I just bought cheaper one and seems to have yarn fallen on to the floor after wearing it lol
Thank You !
So how for the suit look after 3 hours of running and exposure to the elements?
This is the real test.
I’m going to repost a reply I made elsewhere which mostly addresses this. :)
As with most things, it only takes a few minutes to heat up and stabilize. Think about it like this. It’s cold outside. So you put on a coat. How long does it take for that coat to get warm inside? 30 seconds? One minute? When does it stop increasing in temperature as you sit there? For most people, the answer is mere minutes. Maybe less. Same thing here. If i directly grab the material or if it’s in direct contact with my skin, it’s heated up in seconds. If I don’t and it has indirect contact, it takes a minute to heat up. But at that point, it stabilizes. A coat doesn’t get hotter the longer you wear it. Otherwise they would be unbearable within minutes. Likewise, we couldn’t wear pants, or shirts, because if they kept getting hotter as the hours passed, we would all die if heat stroke from our clothing. But that doesn’t happen. It gets to a point, quite rapidly, of temperature the garments will keep and hold, and then it stabilizes. That’s it.
The materials I test are no different. You see the heat patterns within seconds to a minute. It may have a couple minute delay to push through a temperature change across an insulative barrier. But after that, what you see is what you get.
I’ve tested this to make sure I’m not crazy. I’ve looked at the heat signature of myself and my son wearing different types of garments with different insulation properties, then walked around for an hour or two in the forest and come back and rechecked our thermal signatures. With very little exception the signatures are identical between the 5 minutes mark and the hour and a half mark. And that exception is mostly due to sweat if wearing only a t shirt which gets soaked in hotter weather, the area that gets damp from sweat changes it’s signature slightly, and in general, it’s to the betterment of helping mask your signature. Remember, the purpose of sweat is to cause evaporative cooling.
I have also walked around town, and in stores, shooting thermal imaging footage. The things people wearing have a specific point they heat up to and then stabilize. And that’s it. That’s all you get.
For instance, in the video posted here, I was wearing that t shirt, blue jeans and boots for 5 hours before filming. But they weren’t glowing like the sun, right? They didn’t just keep getting hotter and hotter even though I was wearing them for five hours. And in the outdoor footage in this video you can see that my street clothes were actually generating a smaller heat signature than the ground and even sone of the trees in some places. Despite wearing clothing with minimal insulation for five hours, dirt and bark was brighter than I was. Lol.
That’s why I’ve done the testing videos I have, with either some time lapse over the course of a minute or two, or sone activity for a minute or two, because that’s really all you need to showcase the properties of a material over time.
All that said, returning to current, exposure to the elements rd changes a signature depending on whether you are in direct sun or shade. Your signature will change, as different materials heat and cool, absorb and radiate, and reflect, at different speeds. That’s part of why I’m an advocate of mixed materials in a ghillie whether you need them or not. If you use 100% polyester, then your entire suit heats, reflects, emits, etc at the same pace, and moving between sun and shade, you have a largely uniform response. Mixing in different materials breaks that up. Exampke, if nylon releases stores temp faster than polyester, and you have the two materials interwoven next to each other in ghillie strips, you get a blended jumbled affect, as opposed to a uniform blob effect.
Lastly to the point you raised, you are running in a ghillie, while it does still blunt your signature, the act of running completely negates the purpose of the ghillie. You can be seen. So running is lnt really the way you test a Ghillie suit. When judging how well a ghillie works, are you doing that by looking at a model who is laying down is a matched environment as it’s intended purpose? Or are you doing it by watching someone wearing a ghillie go jogging down the street? No. You judge a ghillie by it’s a unity yo mask a person from detection when utilized as intended, in a matched environment, using proper stalking concepts. And just like you don’t go literally running up on a target in a ghillie as a sniper, you don’t go running up on a thermal
imager as a hider. If you have to run, you run while you need to, and get to a place where you can effectively hide again, and then you hide again. And as you hide, you cool down again, just like wearing blue jeans in my video here, it returns back to normal temperature rapidly. :)
You are doing God’s work. Thank you for your efforts and making this video known!
If your outer layer is a wet blanket, that works as well.
Someone might want to try this with a ventilated beekeepers suit. It's three layers of mesh
The center layer is like waffle and a layer of nylon mesh is on each side. The total of the three layers is longer than a bees stinger. I am thinking one could be died, and have guilie stuff woven or sewn to outer mesh.
Oh now that’s a cool thought. :) that wasn’t even in my radar before
Who ever has a suit like that should send it in ao he can test it with his thermal
@@dandetande288 definitely would like to test that! In the meantime, I bought almost $100 bucks in fabrics today, different types and thicknesses of mesh, including “3D air space mesh”. I’m going to try to replicate this, a piece of thick 3D mesh sandwiched on both sides by heavy standard mesh. Should be breathable, but effective. Would love to get the new keeper suit described. Ready to go commercially available options are fantastic for the general public. :)
@@ThatThermalGuy how can i get ahold of you?
I'd be pretty interested to see what it would look like at similar distances after you have it on for an hour or so!..
Otherwise, great find!
Shouldn't heat up
Would any nylon meah work?
"Don't mesh with me" -Sean Connery
How can I get ahold of you?
I replied. It had my email. I deleted it because I don’t want my email just floating out here. But RUclips should have sent you an email of my post with the email in it.
You need to test it for longer. The longer you where it the more heat it will absorb. I dont think that camo will work for more than 10 mins
I’ve done many videos showing how quickly heat seeps through if it’s going to seep through, including time lapse videos which show that, on average, it takes less than two minutes for heat seep to normalize and then it reaches equilibrium with internal heat versus heat dissipation and no matter how long you wear it past that it doesn’t heat up any further.
A simple and easy to follow and understand example is this: when you put on a jacket, does the outer surface of the jacket just continuously heat up until it reaches 98.6 F? The obvious answer is no. We don’t walk around with every article of clothing we don being essentially 100 degrees to touch. So there has to be a point at which the material stops heating and the loss of heat to the environment exceeds additional heat stacked on from the body. The point of that equilibrium occurs actually very rapidly.
When you first put on a jacket, the material is cold. How long does it take to be comfortable? A minute or two? There’s that two minute number approximation again. Less than two minutes on average seems to be how long it takes to heat up. That’s it. That’s all. There’s a marginal time lag on transfer of heat through to outer shell, then the outer surface also quickly achieves equilibrium.
I’ve done tests, checking attire on thermal prior to wearing it, donning attire and checking thermal signature immediately. Watching for a couple minutes until it achieves equilibrium, then I go out for a walk or hike, and spend half an hour to several hours out and about doing everything from sitting in a heated car to going on cross country hikes. Then when I come back, I compare my heat signature to the previous recordings. In most cases the difference hours later, including heated environments or freezing environments, sedentary or vigorous activity, are all rough approximations to what was achieved literally within the first two minutes of it being first put on.
Watch some of my other videos. Don’t take my word for it. See it for yourself. I have lots of materials testing and time lapse videos showing what worked, and what failed, and in some cases, what failed spectacularly. If I’m showing something and saying it seems to be working, it’s because it did a decent job under multiple testing situations. I’m not selling anything, and I have a limited bias in findings here (I won’t say no bias, because everyone has some bias of some kind), but I try to present just factual material and actual recordings so people can judge results for themselves regardless of my opinion of the results.
I think I have around 90 videos uploaded right now. At one point I had over 150. All doing just this. Testing materials and myths. Go watch my other vids. Most are downright boring and hard to watch because I’m literally just sitting there typing on a computer or watching a movie specifically to allow a material to heat up over time and then showing those super boring drool-fest videos of time lapses of me just sitting there doing nothing in high speed. I have plenty of videos if you want to see time lapse proof, or you want to see the effects I’m referring to for yourself. But one thing remains true through pretty much all of them. I’d say probably 90% of all the heating that’s going to happen, happens within the first minute, whether it’s a wool blanket, bubble wrap, burlap, aluminized tarp, ghillie suit, winter coat, etc. and by the end of the second minute, wherever you’re at, is pretty much where you’re going to be an hour later. The difference from minute 2 or 3 to minute 10 of 15 is pretty small, if you could even tell which was which in a side by side still-frame comparison without being told which was which.
Go watch and see. Don’t take my word for it. :)
Here’s an example of a time lapse video I shot which very clearly shows the speed at which fabric heats up and then achieves equilibrium. This is around 40 minutes of actual time under materials (including added on layers) compressed into ten minutes with some sections sped up to show as much as fifteen minutes compressed into ten seconds of video. Again, almost all heating is finished within the first minute of the addition of any material, and cooling is achieved within one minute of the removal of a layer.
ruclips.net/video/U2l3XUSM9iE/видео.html
Look up beez combat system.. The predator ghillie suit. $429. I got a thermal suit on top of my swagman roll. Thank me later
I primarily do testing of normal over the counter commonly available materials for people looking to make their own thermal equipment on a reasonable budget of about a hundred bucks or less. $429 is not budget. Lol. It looks like it is probably effective though. It is based on similar design concepts to what I’ve seen elsewhere and some of the DIY stuff i have done. I have not tested it though. But layered mesh, like they have done, is a proven and effective strategy. I am skeptical though. I don’t see videos testing it except for short periods of time, and in those, I’m starting to see thermal bleed through right as they are terminating the video. Im not convinced on the overall end effectiveness. Ive seen SO MANY deceptive marketing videos for thermal gear. Im very skeptical until i can test it or i see a truly neutral third party test it. But i certainly think it probably does an excellent job compared to many systems from what I’ve seen so far. Thanks for bringing it up.
Nice for LARPing, but has no real practical use unless you are in the military or a criminal.
Wait till November and say that
I think you are missing the point. Criminals HAVE thermal and night vision technology. Gangs, cartels, etc. So do average Joes, hunters, private investigators, etc. there are plenty of lawful reasons to want to know how this technology works and how to reduce its effectiveness beyond military/paramilitary training simulation events (paintball/airsoft/training) which you derogatorily refer to as “LARPing”.
Mesh? Like putting a silencer on your body heat.