About our Coasters We use only the best casting resin for our products! Our resin is made without Volatile Organic Compounds, is UV and scratch resistant and has a heat tolerance up to 248 degree Fahrenheit (once fully cured). Our pieces are handmade, which means each one will be different from the last - how special! We do try our absolute best to make each piece as close to pictured as possible. If your piece is not as you expected, kindly contact us directly and we would be more than happy to assist you! We aim to get your pieces to you as quickly as possible but they do usually take 3-5 days to fully cure. We recommend waiting 3-5 days post-purchase before placing hot drinks on your coaster.