Ami Polymer Pvt. Ltd. Manufactures Silicone Sponge Gaskets. Ami Polymer Pvt. Ltd. Is an ISO 9001:2000 certified company. The Silicone Sponge Gaskets are manufactured from technologically advanced fully automatic microwave curing system which ensures uniformity, and totally controlled dimensions and glossy finish. Silicone Sponge gaskets are also manufactured in step moulding process where the accuracy of dimensions are prime important and the edges are required very sharp. The Silicone Sponge Gaskets are available in various sizes ranging from 3mm to 50 mm [Round & Square sections]