Polyethylene tape 1. cold applied tape 2.butyl rubber tape 3.excellent performance
Polyethylene tape for burried pipelines
Polyken 980 955 coating system is a multilayer system used for the protection of steel pipelines.Polyken #1019, 1027, Liquid Adhesives can be used as primers. In addition to serving as primers, these liquid adhesives themselves represent an anti-corrosion 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 are 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 #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.
Features
Excellent adhesion to pipe and self
Resistant to UV
Can be applied over a wide temperature range
Good conformability and consistent uniform thickness
Easily applied with no special equipment
Compatible with common pipe coatings
Excellent resistance to cathodic disbonding
Meets ASTM D 1000 , EN 12068,AWWA C 214 Standard
Cold applied
| Inner Layer | Outer Layer | ||||||
| 980-20 | 980-25 | 980-30 | 955-15 | 955-20 | 955-25 | 955-30 | |
Backing | 12 mils0.305 mm | 13 mils0.330 mm | 10 mils0.254 mm | 10 mils0.254 mm | 15 mils0.381 mm | 20 mils0.508 mm | 25 mils0.635 mm |
Adhesive | 8 mils0.203 mm | 12 mils0.305 mm | 20 mils0.508 mm | 5 mils0.127 mm | 5 mils0.127 mm | 5 mils0.127 mm | 5 mils0.127 mm |
Backingcolor | Black | Black | Black | White | White | White | White |
Product Properties
Product Properties | Test method | Typical Value | Typical Value |
| 980-25 | 955-25 | ||
Tensile Strength | ASTM D1000 | 30 lbs/in (52 N/cm) | 40 lbs/in (70 N/cm) |
Elongation | ASTM D1000 | 225% | 400% |
| System Properties, 50-mil System: 980-25 & 955-25 |
Peel Adhesion to Primed Steel | ASTM D1000 | 300 oz/in (25 N/cm) |
Cathodic Disbondment: | ASTM G8 | 0.25 in radius (6.4 mm) |
Water Vapor Transmission Rate | ASTM F1249(100°F, 100% RH) | 0.03g/100in2/24hr (0.5g/m2) |
Volume Resistivity | ASTM E257 | 2.5 x 1015 ohm•cm |
Dielectric Breakdown | ASTM D1000 | 650 volts/mil (25.6 kV/mm) |
Dielectric Strength | ASTM D149 | 20-23 kV |
Impact resistance | ASTM G-14 | 50 in-lbs (5.5 Nm) |
Impact resistance | ASTM G-13 | 1000 Ibs (4450 N), no holidays |
Penetration resistance | ASTM G-17 | <15% |
Polyethylene inner tape for burried pipes
