Ami Polymer Pvt. Ltd manufactures Silicone Tri-Clover Gaskets. Ami Polymer Pvt. Ltd. Is an ISO 9001:2000 certified company. The Silicone Tri-Clover Gaskets are transparent silicone, PTFE & PTFE enveloped. The Tri-Clover Gasket is made of 100 percent pure silicone Transparent Rubber. These gaskets are available in red / orange / white and transparent colours.