2PC-Large Grinder Mold for Resin - 3in Resin Grinder Mold with Efficient Spikes Shape, Premium Silicone Molds for Casting to Grinding Spice and More

These are great! But just know that they aren’t beginner friendly. It’s difficult to get every little spiky thing to form without it getting destroyed by a bubble. My first couple of tries, almost every single spike was just a nub. I was going to wait to try again until I have a pressure pot, but I came up with an idea. I decided to pour just enough epoxy to cover all the little holes that form the spikes, and then i used a toothpick and pushed it down into each and every hole, making sure that I pulled out or popped all the bubbles and the hole filled completely with epoxy. I also blocked the center hole with clay and a small disk magnet, one of those rare earth magnets, on the top piece, effectively embedding it just enough so that it won’t fall off after it cures. Once the entire grinder has cured, I placed 2 more disk magnets into the center hole of the bottom piece, so the top and bottom stay together when they’re not in use. The end result was nearly perfect! I did miss a couple bubbles, but the grinder works well anyway.

This mold is great. Haven't had a problem yet with results

I think this mode is great if you can learn how to work it that's awesome but the problem I saw was you are not supposed to be using resin it is toxic for anything you're grinding up in this. The resin can break into anything that you're grinding up and it will literally become toxic even after it's fully cured it's not food safe.

Maybe it’s on my part but I had trouble with getting the bubbles out the spike parts. Some came out perfect or no spike at all. I love the product though. Just have to find a better way to fix that.

It's a little tedious, but take your time and get the air bubbles out of every tip using a toothpick. It is worth the effort. It de-molds easily. And it produces a grinder with very sharp blades and a solid body.

Very impressive mold! I hope to use it for several family members. I knew with the tiny points that it would take time and patience with this mold. It’s best to let your resin rest a little bit after mixing to let the bubbles dissipate. Then pour from a decent height and slowly. Get any remaining bubbles out of each point. You may have to go back several times and repeat. It’s very worth your time! It comes out beautifully!

This mold isn't safe to use, nor is it safe to sell any resin art made with this mold. My old molds went bad so I decided to get new ones with this listing. However upon creating using this mold only 1/4 of the molds successfully worked. The rest are too tight & create resin dust upon using. The dust could easily contaminate anything thats used in the grinder. I do not recommend buying this mold if you care about the safety & health of your customers

Not the best quality. First use and it came apart. Didn’t even make the teeth correctly. Wouldn’t buy again wouldn’t recommentf