SHORE RESIN 18 oz Silicone Mold Making Kit, 15A Platnuim Silicone Rubber, Liquid Silicona Mixing Ratio 1:1 for Casting Molds and Silicone Molds, DIY Soap

I finally tested this yesterday, and the results are perfect.Mixing the material is a little concerning, as both parts A and B are the same, translucent clear. Most mold materials color one part to make the fact that they are both mixed properly obvious. Just make sure you are mixing the two parts together gently, but thoroughly for two or three minutes before pouring into your mold box.Any bubbles created during the mixing process rise and pop on their own, there is no need to vacuum degas the silicone before pouring! This is a huge plus for me. The mixed silicone has an excellent pot life - easily a good ten minutes before needing to pour. You can let it sit and self-degas and still pour to get fantastic detail.As a test, I did a pour and then let the mold sit for an hour. It demolded solidly, however, the outside still felt the slightest bit tacky. Leaving it for a couple hours solved the problem.The resulting castings held every detail! The finished mold has a excellent tear strength (let it sit for 24 hours before tear strength is at it highest. It molds undercuts quite well, and the resulting casting showed no bubbles caused by blemishes in the original mold.I've used both tin and platinum based silicon molding material for over 40 years, and this is some of the best platinum material I've used! For those wondering what is the difference between tin based and platinum based, Tin based works well for things like standard resin, platinum is best for clear resin or epoxy. Often, the different clear resins or clear epoxy will not harden properly in tin based silicone. You need platinum based for clear resin.This is one of the best platinum based silicon mold products I've ever used. Seriously, I can't give it more praise!

I really like this mold making silicone. I’m a newbie and was nervous to use, but I followed the instructions and everything went well. It captured the detail in my piece.

This pack for making silicone/rubber molds is perfect for someone who wants to try it out before committing to a bunch of gear they might not want. The bottles are small, and will probably only make one or two molds in my case. Everything arrived safely and compactly packaged in a nice neat box. I love they include disposable gloves because these are NECESSARY when mixing part a with part b and apply the liquid rubber. You don’t want this stuff in your skin! The stir stick included is good too, but sometimes the wooden sticks break if you mix too vigorously. I like to use a mini silicone spatula and clean it right away. But the sticks will work especially with smaller quantities. The cost of this pack is phenomenally inexpensive compared to other kits like this. A great buy!

We had some fun with this stuff and made a mold of a 3d printed dice dragon. Now we can cast it in anything we want to. Just remember to stick your object to the bottom of the cup somehow, we forgot to do that, and the little guy kept floating up. :) Overall, very much recommended.

The silicone is nice and hard, but still flexible enough to demold your creations. However, it's not bubble free like it says. The packaging tells you that all bubbles will rise within the first 2 hours and pop, but my mold has lots of little baby bubbles in (and this is not my first rodeo).