Zamil Steel Buildings India [P] Ltd. Is offering Exterior Face Finish Coatings. Zamil Steel Buildings India [P] Ltd. Is engaged into the manufacturing and supplying of pre-engineered steel buildings [PEB] following ISO 9001:2000 procedures. The Exterior Face Finish Coatings are available in two types: XRW and XPD. The Exterior Face Finish Coatings are suitable for metal panels. The nominal film thickness of the Exterior Face Finish Coatings is 1 mil or 25 microns. The XRW [Exterior Roofing and walling] is a modified polyester polymer coating. And the XPD [Exterior Premium Durability] is polyvinyl fluoride coating [PVF2, PVDF, etc.].