Silicone curing issue

I'm using Rebound 25 from Smooth-On to do a couple fairly simple molds for my halloween costume and I'm having some troubles with the curing.

Are there any known issues with humidity / heat and the curing of this silicone? It's been rather muggy here lately and I've been getting VERY subpar results with this material. Cleaning up a half-cured, still sticky, 50$ (in mats) mess is starting to seriously aggravate me. :angry

Yodajammies said:

I'm using Rebound 25 from Smooth-On to do a couple fairly simple molds for my halloween costume and I'm having some troubles with the curing.

Are there any known issues with humidity / heat and the curing of this silicone? It's been rather muggy here lately and I've been getting VERY subpar results with this material. Cleaning up a half-cured, still sticky, 50$ (in mats) mess is starting to seriously aggravate me. :angry

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Rebound 25 is a fantastic molding silicone but keep in mind it's a Platinum silicone. Platinums are much more delicate and fussy than tin silicone's. I'd clear coat the heck out of my molded piece to ensure there's no contaminants on it that will cause the silicone to inhibit. The other thing is moisture 'may' have something to do with it too. I'd use mild heat to kick the silicone faster so it doesnt have time to inhibit.

Clear coat your piece....heat your first layers to kick them off quickly and keep it as dry as possible. That should take care of the problem for you.

Good luck!

David