Flat Round Silicone Cup Mat Molds, Resin Coaster Molds, for UV Resin & Epoxy Resin Craft Making, Deep Sky BlueSize: about 105mm in diameter, 9mm thick.â Creactive DIY Craft: The coaster molds with dots pattern is very creactive, avoiding being dull of your coaster, bringing more fun for your life. You can also customize a personalized resin coaster with various decorative items such as glitter, powder, sequin, pigment or dry flowers. â Material: Made of quality silicone, durable & flexible & reusable, easy to demold and clean, fit for repeated use. â Usage: The base silicone molds are suitable for various casting material such as epoxy resin & UV resin. You can use it to make base, cup mats, bowl mats, dish mats, home decor craft. Temperature Limit: This mold permitted useful temperature range is between -20â to 200â.