Molds for scotchcast from PLA

General Discussion
1

Good evening,

Has anyone experience with casting scotchcast resin 2131 in 3D printed molds made from PLA? Does the resin stick to PLA and if so is there a mold release that works with scotchcast?

Thanks for sharing your experiences,

Chris

2

I made a mold in POM, the scotchcast resin was quite difficult to get out of the mold, if I did not do anything to the surface. I figured out that a thin layer of silicone grease made it very easy to remove the resin from the mold.

3

Thanks for your reply! I guess I’ll go with a layer of silicone grease then.

4

You can use your standard PTFE spray release agents or if you want the king of mold release for urethanes … go with MR-5002. The stuff is wicked!

1 Like
5

Here’s a mold if you need it. Potting jacket for an 8mm to 10mm or 8 mm to 8mm inline cable splice by piercet - Thingiverse

there are multiple types of scotchcast. The hard stuff is difficult to remove, the flexible stuff comes out easily. Mold release is not optional.

6

Thank you everyone!
Using spray on PTFE release agent worked like a charm.