itsalive
Well-Known Member
Some silicones have no inhibition to sulfur. Silicone Inc's GI-1000 mixed with UFC will cure against just about anything including sulfur.
Also silicone stickage gets weaker over cure time. New layers might not cure and ahere to the older layers, with out a good cleaning of the original layers surface.
I've made molds where one layer of new silicone didn't adhere to the previous layer properly. so the sandpaper trick might not work either.
Just cancel this guys bid. Thats what I'd do.
Also silicone stickage gets weaker over cure time. New layers might not cure and ahere to the older layers, with out a good cleaning of the original layers surface.
I've made molds where one layer of new silicone didn't adhere to the previous layer properly. so the sandpaper trick might not work either.
Just cancel this guys bid. Thats what I'd do.