Casting thin-section bodies in silicone molds

[Ace-Garageguy]

People often ask for how-tos on casting parts and bodies, and in the past I've posted links to some of the most relevant sites.

Unfortunately, you kinda have to know something about the process to know what's good info, and what applies to you.

I've prototyped and cast lotsa product-presentation parts in the past, and I have a lot of experience making things from a variety of composite materials, but never anything exactly like a thin-section model car body.

As I'll be getting into it shortly, I took the time to watch many YT videos to see what's new, best procedures, etc.

Also unfortunately, YouTube has loads of idiots showing how to do everything wrong.

The TWO BEST VIDEOS I've seen so far, pretty much everything you need to know to make HIGH QUALITY bodies, are linked below.

One uses materials from Polytek, which I've used extensively for other applications and can attest to as being first-rate. The other uses Smooth-On products, familiar to most resin casters.

EDIT: And once you've achieved that perfect 3D-printed body, you can make as many copies as you like using a possibly more cost-effective (and definitely faster) process.

 

Edited June 25, 2022 by Ace-Garageguy

[Len Woodruff]

Thanks for finding & posting these video's Bill.

[bisc63]

Ditto; thank you for the links. I'd seen the second one before, but the smooth-on video is much appreciated as well.

[NOBLNG]

Those are excellent videos! I watched both of them and a few others too. They helped me get a pretty decent mold on my first try. I do get some air pockets that I have been able to fill.

[Rick L]

A very good video but it fails to mention using sulfur free modeling clay. Also  not to use latex gloves. Both sulfur and some nitrile gloves will inhibit the rubber. If using gloves, stick with vinyl. If not using any gloves be sure to wash your hands. Greasy hands from a pizza or cheeseburger can also create havoc ?