Please help. If I made a mold of a product and didnt have enough material can I add more silicone after the bottom half is cured? My mold only filled about half of what I need and the store i buy from is closed.
Yes, you can, as long as the surface you are pouring it onto is clean of dust and oil. If the piece will be under high stress during piece removal, you may encounter some delaminating if there were impurities between the two pours.