Perma Construction Aids Pvt. Ltd. Offers Two Component Coal Tar Modified Epoxy. Perma Construction Aids Pvt. Ltd. Is an ISO 9001:2000 certified company. The model name of Two Component Coal Tar Modified Epoxy is Master Pitch. In the Two Component Coal Tar Modified Epoxy, the components are mixed together and brush is applied on concrete or metal surfaces. The Two Component Coal Tar Modified Epoxy is a coating used for corrosion protection of metal tank and lining for concrete tanks. This protective coating is also used for ducting in drainage pipes exposed or buried metal and concrete pipes. The coverage area of Two Component Coal Tar Modified Epoxy is 100 to 120 sft / kg per coat and two coats recommended. It is available in 1 kg and bulk packs.