Review on 🔵 High-Quality Silicone Mold Making Kit - 2.2 lb Sapphire Blue Silicone Rubber for Casting Resin & Silicone Molds by Kristen Simpson

I bought this product instead of going back to Smooth-On 00-30. Big mistake! I carefully mixed 1:1 and filled the mold. I never fully recovered. The mold was hard, but it had a sticky, filmy surface, which was a nuisance. The two halves of the mold did not separate even when the mold was removed. I almost had to destroy the mold to take it apart. Then I bought Smooth-On. Smooth-On is made in the USA. This product was Chinese. Smooth-On is bright blue (Part A) and pink (Part B). When mixed properly, you get a smooth third color with no hint of pink or blue. With this product you have transparent and dark blue. When fully mixed you end up with... a deep blue. It's almost impossible to tell if you've fully mixed the silicone. They must be thoroughly mixed. I believe the problem I had was due to incomplete mixing. But even with incomplete mixing, Smooth-On will harden.