1. Inner tape ,Outer tape ,Joint tape and Primer 2. Safe and clean, performs well in insulation, anticorrosion. Butyl rubber tapeButyl rubber tape coating system including Inner tape ,Outer tape ,Joint tape and Primer.PE anticorrosion tape consists of two layers, butyl adhesive layer and PE basic layer.Inner layer: Butyl rubber.Outer layer: PE basic material. Butyl rubber tape, safe and clean, ...