References to silicon carbide heating elements exist from the early 20th century when they have been produced by Acheson's Carborundum Co. during the U.S. and EKL in Berlin. Silicon carbide offered greater operating temperatures compared with metallic heaters. Don't let undiluted product or large quantities to reach groundwater, water courses, https://www.facebook.com/permalink.php?story_fbid=pfbid02oreJj44nGmhJZ8CsoLMmiGJruyBi1qTLCUm2eUmmYvHWTAYFynGLepoejKKZ2xirl&id=61562415773754&__cft__[0]=AZUT-HGxo7i8QRK6dfemxozz3PNuLoK8pBnJQN3G_qbYgztGCLc96wcuIumw5CRKn3ZWOxE4RCdkKXnuUGCeR8xkTfE0JkigvlLOS-ZP27-phHtTGUSZYylPB6TlKEd18ziJTS208vBp6bqrMdSYKrkzhDzT7oa2Pw9ko9hE12GFshO36HsrEl2ljW3wK-OSSVQeY1s5L3V6EWtZxSK7iOUK&__tn__=%2CO%2CP-R