ProSIl 1025 RTV Silicone Mold Making Rubber Kit (Gallon)

Tin based silicones are not usually clear (heavy opaque blue/pink/green/etc), this one is actually see through. Kinda like Sorta-clear from smooth on (not glass clear, but enough to see through during filling/removal)Very durable and stretchy, used the molds 10-20x so far and no signs of deterioration. Adheres very well to existing molds (patch/repairs).

Lid only pulled a little then stopped making it nearly impenetrable to get the lid off. When I finally did the stuff wheat everywhere making a mess. And this is like a sticky goo! Poor manufacturing on container!Product wasted could not make a cast.

I’ve been making silicone molds for years. I chose this for the quick shipping as I had a deadline.Like others stated, there is not enough hardener included for the silicone. I weighed it out carefully on my scale and followed the directions exactly. My mold didn’t harden at all in a few places and thus failed! Very expensive and USELESS!Spend your money at Brick-in-the-yard mold supplies. I’ll never use this crap again!

I wanted to make a mold of an Air dry clay sculpture that I made. The silicione was easy to mix and has a nice smell. I dried fast. No release agent was needed. The only problem is that the quantity was not enough to cover all the sculpture, had to complete with caulk silicone and corn starch but it worked very well. For the first time I casted a cement sculpture with this mold, worked fine, the nose broke but put it back. I liked this product very much.

Like many other people have said, the amount of hardener is not enough for the full gallon I purchased. Also, the package says 24 hour cure time and that is.... so wrong for my location. I know my shop is a little cold but it is supposed to set in 24 hours and 48 hours later it's skin has set but the inside is still liquid. I mesured the amount correctly. I am going to continue to wait but I've made several molds and it's always 3-7 days before it actually cured.

The first time I bought 2 gallons for one mold. I mixed and degassed each gallon separately. The mold came out fantastic and is very durable. Then I ordered 1 gallon and used a small portion for a practice mold. Again I was impressed. So I got 2 more gallons for a larger project. I Was disappointed to see the packages laying down and leaking and the hardener bottle levels low...(no leaks, They were sealed). Ever the optimist, I mixed both up anyway. Now I have a floppy, useless $260 mold. My bad. If you buy and the hardener weighs under 400 grams (bottle and fluid) return it. Otherwise it's a great product.

This worked really well for reusable molds. Its a little tougher than some others so it doesn't tear easy but it doesn't stretch as much making demolding a little harder.Great for rock climbing holds

I used this silicone to make molds of crystals. It is pretty thick and definitely needs a vacuum chamber. It has been super frustrating and time consuming to get enough bubbles out; I had to run my vacuum chamber many times. I’ve used thinner /lower viscosity stuff in the past and was trying to save money by buying this product. The time spent to make this work has not been worth the money I saved, that is for sure. If I weren’t making anything too intricate, I might like this stuff more.I would wait more than 24hrs to demold your model. After fully cured, it feels pretty durable, yet flexible enough. I haven’t finished it off yet, so I’m hoping there’s enough hardener cuz it didn’t look full upon arrival.