mould issue

[JRay8]

so i tried the silicone caulk mould. after letting it set nearly a week i tried to take it out of the mould and the caulk was still not dry. any tips on making these thing?
thanks

 

[ctubbs]

If you are using the silicon that smells like vinegar, you may add a bit of corn starch to the mix and it will set up faster. A mix of 1 starch to 4 or 5 silicon works pretty quick. Much more than that and it does not want to mold around your positive. DAMHIKT
Charles

 

[Craftdiggity]

What you need is "acid cure" or "acidic cure" silicone. If you use the right stuff it will take 1 - 3 days to fully cure depending upon the thickness of the mold.

 

[pensbydesign]

tried this after two weeks still was cured i just ended up buying molds from new london