JDictionSilicone Mold Making Kit, 5lb(80oz) Super Elastic Liquid Silicone for Mold Making, Fast Cure Soft Mold Making Silicone Rubber for Casting Resin Molds/Silicone Molds/Candle/Soap Molds

I've wanted to make silicone molds for years and always found the material to be too expensive. This seemed to be the right price. I've now created multiple molds with this material and have had no issues whatsoever. The molds came out bubble-free and were successful in casting plaster.For ease-of-use and to use less material, this is how I used this kit:1. Place a container on a digital scale, zero-out (tare) the scale.2. Pour part A into this container, take note of its weight.3. Pour part B until the scale reads two-times what it did for Part A.4. Stir slowly with the included popsicle stick. For a standard soup can, I would make one rotation in 4 or 5 seconds.While stirring, scrape the sides and touch the bottom of the mixing container periodically to ensure all material is incorporated into your mix. Don't remove the stirrer or go fast as it can incorporate bubbles.Finally, pour the silicone mixture very slowly into your mold box but not on the item itself. It is less likely for air bubbles to be trapped by pouring to the side of the item instead of onto it. I held my soup can around 2 feet high and allowed a very fine stream to flow into the box. The overall pouring time was between 3-5 minutes.I didn't use the included silicone measuring cups and feel it is unnecessary for what I'm doing, as well as a potential waste of material (material remains after you pour it, and this stuff comes with a premium).It was too cool outside here for proper curing (less than 70F), so I took a small space heater which measures about 6" tall, placed it in front of the mold, then laid a box over everything, with one side of the box resting on top of the heater. This allowed the temperature inside the box to get quite warm (80-85F - ish), and it cured no problem.Finally, I was able to pour plaster of Paris and cast my pieces which came out lovely. No bubbles in the final plaster product. Quite satisfied with the results and this product.

Pretty darn good silicone. Set up fast and easy to mix and work with. I'll buy this when I need to make a mold.

Very pleased with the performance. It works very well. Will buy again, soon.

Works well and created many projects with this size. You cannot create in cool or cold area because it won't cure. Warmer the better for quicker cure time and results. Easy to sand and polish as well. Clear results and adding color pigment is easy.

Works great takes a while to cure but works great

Works like they say it does. I made a mold of a frog and have cast about 30 in concrete from that mold. One of the easiest molds I have to use. Nice for drop molds not glove molds. Mold is ready quickly in comparison to latex and fiberglass.

Since this is the first time I've ever cast a silicone mold, I can't really compare it to other products. I can, however, express how pleased I was with the results. I was making a 2-part squish mold of a very thin, highly textured model part reproduction, & the JDiction silicone flowed beautifully around the details & perfectly filled some tricky holes where there was a concern about catching air bubbles. Though I did degas the silicone before pouring, any bubbles that may have been initially trapped by the pour rose to the surface immediately & popped & leveled on their own accord with only a couple of light taps to the side of the mold case. Further, I was pleasantly surprised at how cleanly the first part of the mold separated from the sculptex clay I used to build up the mold -it just peeled away cleanly & with no hassle. Using a very thin brushed-on coat of vaseline as recommended made separating the second part of the mold equally easy. Altogether, the resulting mold was perfect -no bubbles whatsoever, exact surface detail/texture- & after 48 hours with Amazing Clear Cast epoxy resin in a pressure pot, the flexibility of the silicone made separating the textured surface a breeze with no tearing of the mold or distortion of the part even though ACC resin remains very flexible when first demolded. Needless to say, I'm very happy with this product & have no reservations about recommending it to other first time users out there.

The documentation said it had a 3-5 minute work time. I was a little worried because this is very short. I'm using a vacuum chamber and trying to produce really flawless molds. After two hours it was still liquid. After 8 hours it's somewhere between liquid and tacky. It's jelly.Still waiting. I'm really really hoping this works because otherwise it will probably destroy my precision CNC positive form and I'll have to produce that again. $$!What could have gone wrong? My studio is 45 degrees. Those doesn't seem cold cuz I live in Montana. I put the piece on a space heater hoping the heat will catalyze the chemical reaction.Also, maybe it got colder during shipping? The weather has been really nice with 20 degrees as the low. I don't think that cold effects silicone, but maybe.I used a scale. I did 1:1 ratio by weight. I used an electric mixer and mixed the heck out of it.The documentation says it takes between 12-24 hours to cure. I'm crossing my fingers waiting another 12 hours and hoping that cooking it on the space heater does something.