Uploaded December 2019 | Updated September 2026, 2 weeks ago
De-gassing silicone rubber is essential for making good molds. Bubbles in a silicone mold can ruin a resin casting. Vacuum chambers work great - but what if you don’t have one? Can you use a shop vac to de-gass silicone rubber? Answer: NO. Watch this video to find out why.
De-gassing silicone rubber is essential for making good molds. Bubbles in a silicone mold can ruin a resin casting. Vacuum chambers work great - but what if you don’t have one? Can you use a shop vac to de-gass silicone rubber? Answer: NO. Watch this video to find out why.










