How To Rotocast a Hollow Part Using Smooth-Cast® 65D Impact Resistant Resin
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- Опубликовано: 20 июл 2024
- This tutorial video shows how to rotocast or slush cast Smooth-Cast® 65D resin to create a hollow, impact resistant part.
Learn more about Smooth-Cast® 65D at www.smooth-on.com/products/sm...
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thats great and very strong ive been watching your videos for a while now and have been making my own castings as a hobby its great fun and rewarding when you have a final product you have made yourself. thanks for sharing this and all the other videos they are a big help to people who are interested in this both as a hobby and for mass production of there own unique items. thumbs up from me
DAVEEYEINTHESKY thanks so much Dave! We're so happy to hear about your success. Thanks for watching!
I need a couple of those casting to paint and put on my wall. They are awesome.
Thank you for watching!
Thank you Smooth on! ✨
+Painted Starlight thanks for watching! Don't forget to subscribe! :)
super good videos, keep em coming! cheers from sweden
Will do! Thank you for watching!
One more, no need to coat the inner silicone with talc or mold release before casting? thanks
I’m trying to find something to cast around a steel bolt to make replacement handles for my machines. Do you think this would work?
Thanks for the video!
You guys seem to eat a lot of popcorn....all those buckets.
+Lee Bent we do! Thanks for watching and don't forget to subscribe!
Nice video!
I've been looking for ways to recreate and create RC airplane parts and quad copter body shell sets. How about doing some videos about that?
Great Idea. We will keep that in mind for upcoming videos.
+4FunRC sounds like a great idea! Thanks for watching.
Can i use ordinary silicone rubber for casting sir? Thnks🙏
Hello Brian Oltrogge, reviewed your very well presented video on slush casting using smooth-on 65D. Please share your thoughts/advice with brush application of the 65D resin say with the URE-FIL11 filler into shallow relief sculptures. BTW, I recently cast several small (fist size) sculptures using the smooth-on 300 product. Am most pleased with the results. Have sanded them and will clean, prime and acrylic paint in time. In terms of safety I noticed you used a respirator when power tooling the edge of your cast. Is one recommended when hand or machine sanding the resins? When hand sanding the 300 I found the particles slightly heavy ( not air bourne) and I simply blew them away. I am in a very well ventilated working space. Roy Carter
Can you send us a tech ticket? Our team can help you - www.smooth-on.com/support/ticket/add/agree/
thank you
Hi, this is my second comment on your channel. This time I would like to know if parts of a motorbike like plastic fairings and panniers could be made and if so, what would be the procedure using your products.
4 weeks ago I fell from my motorbike due to bad weather and some plastic parts were broken so I am interested to know how to replicate said parts from scratch.
Lord of Thunder if you visit our support page, you can submit a ticket. We can then write back with recommendations. Thanks for watching!
Tienen distribuidor de la marca en República Dominicana ?
I would like to see a way to get flexible fiberglass resin casts for wearable props and armor.
Excellent idea! Thanks for watching, Cory Dornbusch, and don't forget to subscribe for more how-to videos!
Would you please explain which characteristic on a material's technical bulletin makes it cure more gradually rather than snap-cure?
There isn't a set ASTM number for the type of cure profile of a material, generally we indicate this in the product's description. If you have any questions about the differences, you can call us directly at 1-800-381-1733. Thank you for watching!
Very Cool!
Thanks for watching, Cara Dungan, and don't forget to subscribe for more how-to videos!
Could you do a video on Hollow casting a hand ( from fingers to elbow) please? i have the products laying down here but am afraid if the project fails.. I don't want to waste the material ! :\
Great Idea. I'll pass this on to our video team.
you're, like, in the mob, right? j/k, great vids, i learn a lot. :)
omg you all are my dream!
+Zakurita Moon thanks for watching! Subscribe to get notified of our new videos!
Can you please speak to the differences between 65D and 57D? I see they’re similar but I’m curious when you might go with the 57 other than a slightly longer pot life.
Been looking for an answer to this too
Hey there, the 57D is a bit softer than the 65D but the major difference is going to be the color of the material. The 57D is a translucent white while the 65D is white when cured. I like the 57D as I can add color to it and will achieve the color that I am adding to the material. The 57D being softer allows it to me a little more durable than the 65D. If you have any specific questions about the materials you can send our tech team a ticket and they can further assist you. www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!
Thanks very much!! Appreciate the knowledge @@smoothon
Does the thicker work with clear resin and keep the clear color if I wanted to use for color match
If you add a thickener such as Ure-Fil 9, it will make the resin more opaque.
I plan on making casts of model kits, will this resin work fine or should I go for another series like the 300 ?
Smooth-Cast 65D can be cast in thin sections, it would be a good choice to test.
hello I have a problem of sweating in the finished object, it is a type of oil that prevents me from painting it since when applying any type of primer it repels it, any advice would be very grateful
This could be caused by a couple of different factors. This frequently asked question may provide some assistance www.smooth-on.com/support/faq/157/
It is possible to create a scale (say 5" tire) with a rubber strong enough for rc airplanes use but light in weight (but hollow with say 3/16" thick walls)?
Yes that is possible. We are working on some videos now about tires for RC cars. If you have further questions about your project you can send us a tech ticket and our team can help you work through your project. www.smooth-on.com/support/ticket/add/agree/
Do I need the URE-FIL 11 if I am just casting into a mold and not rotocasting? And after the resin has finished hardening, is it safe to hold in your hands for long periods? Trying to find something tough but droppable for making a custom hand-held gaming system, and I know most use ABS, so would this be similar?
It is safe to handle once cured, and URE-FIL 11 would not be necessary if casting solid.
@@smoothon Hey thanks for the info!
My issue is t t 65 D doesn’t stick to itself so if I try to do a second layer it s just on the surface not bonded down to the previous. Not sure why.
Hi there! This is a good question for our tech support team, can you send them a ticket here? www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!
do i need to use a respirator when useing SMOOTHCAST 66 D ?.. is it safe to use in your house ?
Hi there. Yes it is safe to use in a well ventilated area. You can reach out to our technical support specialists for any questions you have about our materials. www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!
When I applied my second layer after about 5 minutes, it clumped up and didn’t flow smoothly as the first, and wasted a lot of material (kinda like what happened in the “what not to do” clip of this video) how do I stop that from happening? Should I wait longer?
Hi there! This is a good question for our tech support team, can you send them a ticket here? www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!
can this resin be applied with a brush instead of slush cast ?
Yes it can.
1. Can this resin be painted with acrylic paint?
2. If i have a closed mold, can i rotocast with only one layer?
3. What is the maximum humidity level for working environment, for the resin to not foam up badly? My country is quite humid, Smooth-cast 321, 300, foam up badly.
1) Yes, but I'd recommend looking over our detailed painting recommendations here: www.smooth-on.com/support/faq/141/
2) You still want to build up a few layers to strengthen the casting. Generally with a closed mold on a rotocast machine, a rubber plug is used to seal the pour spout. After each layer, the resin at the spout is cut open so that the next batch can be poured. You can see this process in action here: ruclips.net/video/Z3P_4qIV8LQ/видео.html
3) 50% or less is recommended. If humidity is hard to control, you will want to use fast setting resins and always use a dry gas blanket like our XTEND-IT when storing opened containers. You might also see if you can switch to a castable epoxy for some projects, as moisture doesn't cause foaming in epoxy.
Thanks for prompt reply.
Yes i have a rubber plug that is part of the mold.
The reason i am worry for the foaming of resin is, even SmoothCast 300 will foam if i don't use pressure pot. And, with such a short pot life, it is almost impossible for me to get the resin and mold into the pressure pot, so i stick to Smooth-Cast 321 all the time, with pressure pot. Usually i have 5 to 6 molds to pour which fit into the pressure pot.
** Working with fast resin almost certain to bring up my blood pressure :D
I have limited control over the humidity as i work in open area. So once i open a gallon set, i try my best to cast all 6.9kg of resin within 3 days. Once i am done i use a new rubber glove and wrap over the lid then fasten with rubber band.
The first 2 to 3 cast are usually fine without pressure pot. After that it get worse and i have to proceed with pressure pot.
May i know, is Smooth-Cast 65D also as sensitive as Smooth-Cast 321 series?
Is resin close to soft rubber. Do you have anything that cures like rubber
Yes, our Simpact materials cure quickly and flexible.
How do you fix it if it does crack? How thick should a casting be?
You can repair using superglue or epoxy. We recommend about 3/8" thickness.
ahhh! whats the difference for hollow casts between 57D and this 65D? 😢😥😢😥 is 57F faster drying?
65D is firmer. Here is a chart comparing the 2 materials - www.smooth-on.com/compare/31658/9395/a/
Is it safe to cast without the mask? Also I have a small room without ventilation...
Hi there, we recommend this material be used in room sized ventilation. If you have further questions, Our team can help you - www.smooth-on.com/support/ticket/add/agree/
hi what's the best way mold a full size objected like a robot with a gun in its hands
There are a lot of different ways to go about this. If you write us a tech ticket - we can go over them with you. You can even attach pictures. www.smooth-on.com/support/ticket/add/agree/
thank you for the info
After priming a cast made with 65D, can I fill some imperfections with Bondo o similar putty?
It may be possible, but you would want to test the putty for adhesion to the urethane resin.
@@smoothon it adheres perfectly!!!
@@smoothon what material can I use for rotocasting to get a more ridgid cast?
Our Smooth-Cast 65D is popular for rotocasting rigid pieces.
Can I do cold casting (bronze) with 65D?
Thanks for watching! We recommend using Smooth-Cast™ 325 with Metal Powders.
Smooth-On Thanks, but I need a slush casting resin, where you suggested only use 65D for slush casting. Please advice.
You may want to reach out to our 1-on-1 support for advice about your specific project: www.smooth-on.com/support/ticket/add/agree/
Hi, i can mix polyurethane 90A with 70A?
Hi there! This is a good question for our tech support team, can you send them a ticket here? www.smooth-on.com/support/ticket/add/agree/ Thanks for watching!
I want to see a model railroad boxcar with this.
Great idea! Have you seen this video? www.reynoldsam.com/media/video/J14I8DVh6po/
So if im casting a doll head can it be colored like flesh?
Yes it can, using SO-Strong colorants
what is the difference with 321 or Onyx?
Great Question! You can see the differences in material properties between Smooth-Cast® 321 and Smooth-Cast® ONYX™ FAST and SLOW here: www.smooth-on.com/compare/8639/9080/9143/a/
Thanks. From comparison chart, the 321 and Onyx are harder and stronger. Is that it? 321 can be used for rotocasting too? Thanks
321 has a snap cure - as opposed to the gel cure of 65D. Gel cure materials work better for rotocasting.
This is an extreme, non scientific test. The lower the hardness of the resin is, the better the impact resistance is. 65D is softer than 321, therefore it has a higher impact resistance.
Smooth-On I see. I understand know. Thank you for the reply.
One more, no need to coat the inner silicone with talc or mold release before casting? thanks