STP Limited manufactures Oxidized Bitumen Waterproofing Felt. STP Limited has been accredited with the ISO 9001:2000 and ISO 14001:1996 certifications. The Oxidized Bitumen Waterproofing Felt is produced by saturating Hessian with straight grade bitumen and coating it with special grade of oxidized bitumen compound. The combination gives proven waterproofing qualities of bitumen and ease of application.
