CROWNMADE 4 Pack Square Resin Coaster Molds, Coaster molds for Epoxy Resin, Silicone Molds for Resin, Epoxy Resin Molds

I saw some negative reviews on this product, so I wanted to use them a bit before I wrote my review. I do several things in my business, & one of those are stainless steel tumblers. I started making coasters to go with each individual tumbler orders & I got very tired of the silicone molds that had. I have 6 round molds that are all connected. I tried using a couple of single square ones & they were okay, but I didn't like the edges. When I purchased these, I wasn't expecting much. Other reviews stated that it was hard to get out of the molds, some said they were difficult to clean, they used too much resin, etc.,I sprayed a silicone release spray in 2 of the 4 my 1st use. I had no problem getting them out & I didn't have a problem on the 2 without the release spray. A quick rub down with a paper towel with a little acetone on it, was all it took to clean them completely. I mixed up the same amount of epoxy that I use on my other coaster molds & that was plenty & to be honest they seem more sturdy than my other coasters. They even set up quicker & I have no idea why that is. I'm using the exact same measurements, but I love it. They don't bend as they come out like my other coasters do either.I'm actually enjoying doing these extra pieces for my customers, & I was really close to stopping. Glad I took a chance on these.

High quality

Worked like they should. Arrived quickly. For those struggling, I use J&J baby powder: brush it VERY lightly (a light dusting) using a small paintbrush to get all the sides and corners. My molds seperated very easily, no struggle. I believe the bad reviews here are ppl not using a mold release agent, or new to working with resin. Follow the instructions on your resin, and always brush your molds with baby powder.

I’m a resin artist and found these coasters very durable. Firm so the resin keeps it shape, easy to clean, and thick. Highly recommend. I’m already planning on pursuing more coaster sets.

Very durable mold! The price is amazing for the product you get. My favorite thing about these is they are deeper than most coasters! Seashells fit in nicely.

I got an order of these and made my first set of resin coasters. This type of silicone does not hold up to heat when getting out bubbles in resin though and my molds were ruined when the silicone stuck to my coasters and ripped. I got a replacement and I spritz the resin with isopropyl alcohol instead now. There are still some bubbles, so these molds aren't the best for what I want, but overall they do their job. I've noticed that the more clear, bendy silicone molds hold up the the heat better.

I have to say, I REALLY love these molds! They rounded edges for a selling point for me. I absolutely love the way my coasters have come out so far. I've not had any issues with resin sticking to the molds however, I do plan an purchasing some mold release to assure that these will last over time. I'd definitely recommend these and will be purchasing more when I'm done writing this. Would like to see circle ones from you as well...maybe in the near future???

Incredibly sturdy! Heavy resin usage, but it gives proper measurement estimates prior to pouring. Heavy duty mold, solid and sturdy results!

First time I bought these they got lost in the mail (after a month wait). Amazon was really good about it and refunded me right away. I bought it again and finally received it last week. Used it for the first time and they were excellent.