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System Description

The polyken955 polyethylene tape is covered thermally on the former. So it possesses good insulation, excellent anti corrosive effect, high mechanical strength, collision resistance, aging resistance, small water absorption, convenient construction, safety& health, wide application and long lifetime etc. Polyethylene anti corrosion adhesive tape can be used extensively in metal pipes of all pipelines and facilities in petroleum, natural gas, petrochemical industry, electric power, metallurgy, urban gas pipeline network and water supply etc. For efficient and long lasting outer anti corrosion.  POLYKEN 980,955 is a multilayer system used for the protection of steel pipelines. POLYKEN 1019,1027, Liquid Adhesives can be used as primers for this system.In addition to serving as primers, these liquidadhesives themselves represent an anticorrosion layer and provide a uniformly smooth contact surface to promote high adhesion of the coating system to the pipe. They are designed for machine or brush application and formulated with stress-corrosion cracking inhibitors. The Anti-Corrosion layer POLYKEN 980 is engineered to assure a high bond to the primed surface with excellent conformability characteristics. The mechanical protection layer POLYKEN 955,achieves a complete bond to the POLYKEN 980 inner layer, providing maximum handling and in-service protection for the coating system. The adhesives in these and all POLYKEN tape systems contain proven anti-microbial additives.The POLYKEN 980/955 can also be used for ductile iron pipes, in this case the use of 1027 primer is recommended.

Features

-Resistant to soil stress - Excellent adhesion to pipe and self -Low cathodic protection -Long-term in-ground performance - Serve for low-high temperatures

- Cold applied -Uniform coating thickness -Compatible with all pipe diameters and generic plant coating systems -Qualified ASTM D1000,AWWA C 214,EN 12068 standards

Structure

Backing :  Special blend of stabilized polyethylene
Adhesive : Butyl rubber and Adhesion Promoting Resins
Color   :Black or White

Properties

Product Properties	Test method	Typical Value
		POLYKEN 955-15	POLYKEN 955-20	POLYKEN 955-25	POLYKEN 955-30
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	50N/cm	60N/cm	70 N/cm	80 N/cm
Elongation	ASTM D1000	300%	350%	350%	450%
Peel Adhesion to Primed Steel	ASTM D1000	24 N/cm	25 N/cm	26.5 N/cm	33 N/cm
Water Vapor Transmission Rate	ASTM E 96	0.10g/m2	0.10g/m2	0.08g/m2	0.06g/m2
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	ASTM D149	30 kv	36 kv	43 kV	45 kV

Ordering Information

POLYKEN 955	Product Model No.	Standard ordering options
20	Total tape thickness in mils	15mils(0.381mm),20mils(0.508mm),25mils(0.635mm),30mils(0.762mm)
WHI	Tape backing color	White (WHI)
6	Tape width in inches	2"(50mm),,4"(100mm),6"(150mm),9"(228mm),12"(305mm)18" (457mm)
400	Tape roll length in feet	100ft(30M),200ft(61M),400ft(122M),600ft(183M),800ft(244M)