Pipe Outer Wrapping Tape

Pipe outer wrapping tape  description pipe outer wrapping tapeis cold applied tape coating system for corrosion protection of oil, gas, petrochemical, and waste water underground or overhead pipelines.  the outer-layer tape backing shall be compounded so that it will be resistance to outdoor weathering.pipe outer wrapping tape shall be applied after the inner-layer tape by hand or with a wrapping . Pipe outer wrapping tape include gf200-15 outer wrapping tape,gf200-20 outer wrapping tape,gf200-25 outer wrapping tape and so on. Pipe outer wrapping tape  properties product properties test method typical value gf200-15 gf200-20 gf200-25 gf200-30 total thickness   15mil(0.381mm) 20mil(0.508mm) 25mil(0.635mm) 30mil(0.762mm) backing of pe film   10mils(0.254 mm) 15mil(0.381mm) 20mil(0.508mm) 25mil(0.635mm) butyl rubber adhesive   5 mils(0.127 mm) 5mil(0.127mm) 5mil(0.127mm) 5mil(0.127mm) tensile strength astm d1000 50ncm 60ncm 70 ncm 80 ncm elongation astm d1000 300% 350% 350% 450% peel adhesion to primed steel astm d1000 24 ncm 25 ncm 26.5 ncm 33 ncm water vapor transmission rate astm e 96 0.10gm2 0.10gm2 0.08gm2 0.06gm2 water absorption after 1 day,at+23℃ astm d570 0.10% 0.10% 0. 08% 0. 06% volume resistivity astm d 257 2.0 x 1015 ohm.cm 2.5 x 1015 ohm.cm 2.6 x 1015 ohm.cm 2.6 x 1015 ohm.cm dielectric strength.