Nice tutorial you were clear and concise on what to you're supposed to do. I do have a question, I have a board and the previous owner repaired dings with some sort of light blue colored filler and when I took it to a professional to ask about it, he said they probably dyed the filler so is it possible to add dye to this putty so that all the ding repairs match in color?
If you make putty with uv resin will it fully cure or do you have to add catalyst? Thinking about making a or made batch and storing it away from light so I don’t have to mix it up every time.
That looks like a great method to repair your board but all those different products. What would all those things cost including the plastic cups and stir sticks?
For a ding repair shop or surfboard builder those are all standard products that they will have in house. It does seem like a lot but it allows you to make a really lightweight putty and customize it to suit the repair at hand.
So, I trying do a repair in a board but when a put the resin the polystyrene inside the board are melting and the ding getting worse. I’m using resin and 3mm glass bubbles. What do you think? Cheers!
You are most likely using a polyester resin, which melts polystyrene foam. You need to switch to an epoxy resin. The second thing to watch out for is if it is a large void you may need to use a slow hardener with the epoxy or fill it in layers to keep the epoxy from getting too hot.
Can I use a putty made with polyester resin to glue a broken in half surfboard, for example, or for that kind of job is better to use Epoxy resin? thanks!
Assuming the core of the board is a urethane foam and not styrofoam, yes you can. Doesn't really matter which resin in that case, the strength of the board will come from the skins.
Could I use gloss resin 32737 or sanding resin (both which I have on hand) with Qcell and cabosil to achieve the paste? Would one work better than the other or should I use a laminating resin (no wax) that I also have a couple ounces remaining? I'm trying to avoid spending $60 for epoxy if possible
As long as you sand the putty after it cures you can use the sanding resin. Any wax will get sanded off and you'll have a good surface to bond to. I wouldn't use the gloss resin.
I am assuming you are asking about surfboards. If not almost all SUP boards are made with styrofoam cores. Surfboards are going to typically be made from polyurethane foam or styrofoam. Styrofoam boards are going to typically be eps or xps, eps is beaded foam that looks like a styrofoam coffee cup or cheap cooler. Xps is extruded styrofoam, the pink and blue styrofoam insulation at Home Depot are XPS. Polyurethane (PU)foam is a closed cell foam that has a nice look to it when glassed and glossed. PU foam does brown with exposure to sunlight. If can’t tell visually what the foam is, some clues might be if the board says epoxy, it is likely a styrofoam core, if you sand the ding are and it smells like polyester resin it is probably a urethane core. You can also put a little polyester resin on the foam or a chunk of foam and see if it melts (I mean a very small amount and be prepared to remove it if the foam melts, better to take out a little chunk to check). Finally if in doubt use epoxy on it, epoxy is compatible with all foam types.
@@FiberglassSupply I have to replace my fin box , is this the same stuff I’d use to fill in around the box or does this stuff eat the styrofoam core inside the board ? Thanks!
Hey how much 2000ce epoxy resin to 2100f hardner do we need to add? I got these same supply’s from your shop! my ding on my lib is pretty small, this seems like it makes way more epoxy than I need haha.
The ratio is 2 parts 2000ce to 1 part 2100f by volume or 100 to 44 by weight. You can mix up whatever amount you need for the size ding you have. I.e you can mix a 1.5oz batch (1 oz 2000ce, 0.5oz 2100f).
I tried to fill a large ding in my surfboard with the mixture, but it was melting the foam of the board, why is that ? Does maybe the foam body of the board and the mixture not combine ? Or could it be that the measurements were in wrong relations ?
So Viktor may be correct, the other issue could be if you used a fast hardener with an epoxy system and the putty got too hot and melted the styrofoam, although that is somewhat unlikely with this mixture, but possible. So a couple of things, make sure that if your board has a styrofoam core that you are using an epoxy resin for the putty, if in doubt just go with epoxy. If the ding is really large or deep either use slow hardener or put it in in layers to avoid having the epoxy get so hot it melts the foam. I would consider a large ding anything over the size of a golf ball and over 1/2" deep.
The reason I didn't put specific amounts in is because it will vary with the resin system being used. Lower viscosity resins require more cabosil then high viscosity resins. Even the same resin system will have a different viscosity depending on temperature. A good starting point for the 3M bubbles is the same volume of bubbles as you have of resin. From there you keep adding until you are have a consistency that will work for what you are doing.
If epoxy it depends on the hardener speed, volume of repair, and temperature. If polyester resin depends on catalyst level, volume of repair, and temperature. The larger the volume the faster it will cure, the higher the heat the faster it will cure. Too much volume and too fast a hardener or too much catalyst and it can cure too fast (get too hot) this can be an issue with eps cored boards as it will get hot enough to melt the core. But generally I would expect at the low end a couple of hours before you can sand it and on the upper end overnight.
Nice tutorial you were clear and concise on what to you're supposed to do. I do have a question, I have a board and the previous owner repaired dings with some sort of light blue colored filler and when I took it to a professional to ask about it, he said they probably dyed the filler so is it possible to add dye to this putty so that all the ding repairs match in color?
Wow you guys have upped your video game! Thanks for the videos!
Thanks!
Thanks for the very clear video, instructions and useful tips
Excellent
If you make putty with uv resin will it fully cure or do you have to add catalyst? Thinking about making a or made batch and storing it away from light so I don’t have to mix it up every time.
That looks like a great method to repair your board but all those different products. What would all those things cost including the plastic cups and stir sticks?
For a ding repair shop or surfboard builder those are all standard products that they will have in house. It does seem like a lot but it allows you to make a really lightweight putty and customize it to suit the repair at hand.
Another question. Could u use automotive bondo body filler to repair a ding?
In a polyester board you could but it would be an ugly color and heavy. This makes a lightweight putty.
So, I trying do a repair in a board but when a put the resin the polystyrene inside the board are melting and the ding getting worse.
I’m using resin and 3mm glass bubbles.
What do you think?
Cheers!
You are most likely using a polyester resin, which melts polystyrene foam. You need to switch to an epoxy resin. The second thing to watch out for is if it is a large void you may need to use a slow hardener with the epoxy or fill it in layers to keep the epoxy from getting too hot.
Can I use a putty made with polyester resin to glue a broken in half surfboard, for example, or for that kind of job is better to use Epoxy resin? thanks!
Assuming the core of the board is a urethane foam and not styrofoam, yes you can. Doesn't really matter which resin in that case, the strength of the board will come from the skins.
Could I use gloss resin 32737 or sanding resin (both which I have on hand) with Qcell and cabosil to achieve the paste? Would one work better than the other or should I use a laminating resin (no wax) that I also have a couple ounces remaining? I'm trying to avoid spending $60 for epoxy if possible
As long as you sand the putty after it cures you can use the sanding resin. Any wax will get sanded off and you'll have a good surface to bond to. I wouldn't use the gloss resin.
Any reason why my Resin research quik kik bubbles when mixing qcell and epoxy resin? When I apply to board it makes big bubbles.
Thanks for answering my questions. I have another if you don't mind :-)D How do you know what your board is made of? Polyester or...
I am assuming you are asking about surfboards. If not almost all SUP boards are made with styrofoam cores. Surfboards are going to typically be made from polyurethane foam or styrofoam. Styrofoam boards are going to typically be eps or xps, eps is beaded foam that looks like a styrofoam coffee cup or cheap cooler. Xps is extruded styrofoam, the pink and blue styrofoam insulation at Home Depot are XPS. Polyurethane (PU)foam is a closed cell foam that has a nice look to it when glassed and glossed. PU foam does brown with exposure to sunlight. If can’t tell visually what the foam is, some clues might be if the board says epoxy, it is likely a styrofoam core, if you sand the ding are and it smells like polyester resin it is probably a urethane core. You can also put a little polyester resin on the foam or a chunk of foam and see if it melts (I mean a very small amount and be prepared to remove it if the foam melts, better to take out a little chunk to check). Finally if in doubt use epoxy on it, epoxy is compatible with all foam types.
@@FiberglassSupply Thanks a lot for taking the time to answer all my questions- Dave
is there a point where the putty stops running if using only q cell or it will always run if not combined with cab o sil? thanks
It will thicken to an extent but will aways run or slump without cabosil
Questions:
1) Do you have to use Cab o sil or can I get by with just using the glass bubbles?
2) Are glass bubbles and Q cell the same thing?
You really do need both to make a putty that doesn’t run. Yes, they are the same thing.
@@FiberglassSupply I have to replace my fin box , is this the same stuff I’d use to fill in around the box or does this stuff eat the styrofoam core inside the board ? Thanks!
@Lou use an epoxy resin - it works for epoxy and polyester foam boards, but if you use a polyester resin on an epoxy board it will melt the foam
Can the microballoons be used with Poly resin or only epoxy?
Glass bubbles can be used with both resin types.
Hey how much 2000ce epoxy resin to 2100f hardner do we need to add? I got these same supply’s from your shop! my ding on my lib is pretty small, this seems like it makes way more epoxy than I need haha.
The ratio is 2 parts 2000ce to 1 part 2100f by volume or 100 to 44 by weight. You can mix up whatever amount you need for the size ding you have. I.e you can mix a 1.5oz batch (1 oz 2000ce, 0.5oz 2100f).
I tried to fill a large ding in my surfboard with the mixture, but it was melting the foam of the board, why is that ? Does maybe the foam body of the board and the mixture not combine ? Or could it be that the measurements were in wrong relations ?
You probably used Poly resin for Epoxy board...While you can use Epoxy resin for all, poly can only be used for Poly.
So Viktor may be correct, the other issue could be if you used a fast hardener with an epoxy system and the putty got too hot and melted the styrofoam, although that is somewhat unlikely with this mixture, but possible. So a couple of things, make sure that if your board has a styrofoam core that you are using an epoxy resin for the putty, if in doubt just go with epoxy. If the ding is really large or deep either use slow hardener or put it in in layers to avoid having the epoxy get so hot it melts the foam. I would consider a large ding anything over the size of a golf ball and over 1/2" deep.
what makes this filler white?
amounts? how much cabosil, resin, hardener?
The reason I didn't put specific amounts in is because it will vary with the resin system being used. Lower viscosity resins require more cabosil then high viscosity resins. Even the same resin system will have a different viscosity depending on temperature. A good starting point for the 3M bubbles is the same volume of bubbles as you have of resin. From there you keep adding until you are have a consistency that will work for what you are doing.
I mostly hear music playing and a guy talking under it. Can't really follow.
Can you guys reupload this without the music?
whats the drying time!?
If epoxy it depends on the hardener speed, volume of repair, and temperature. If polyester resin depends on catalyst level, volume of repair, and temperature. The larger the volume the faster it will cure, the higher the heat the faster it will cure. Too much volume and too fast a hardener or too much catalyst and it can cure too fast (get too hot) this can be an issue with eps cored boards as it will get hot enough to melt the core. But generally I would expect at the low end a couple of hours before you can sand it and on the upper end overnight.
Thx!!
No problem!
Good info, but your background music is a bit too loud IMO :)