POLYKEN 980-20 is a multilayer system used for the protection of steel pipelines. Polyken 1019,1027,1033A or 1039 Liquid Adhesives can be used as primers for this system. In addition to serving as primers, these liquid adhesives themselves represent an anticorrosion layer and provide a uniformly smooth contact surface to promote high adhesion of the coating system to the pipe.
PRODUCT DESCRIPTION :
The Anti-corrosion layer Polyken #980-20 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 system contain proven anti-microbial additives. This product can also be used for ductile iron pipes , in this case the use of 1027 primer is recommended.

Features / Benefits POLYKEN 980-20
- Worldwide reference lists
Proven long-term in-ground performance.- Impermeable to oxygen and moisture
- Resistant to soil stress
Superior in-ground performance- Uniform coating thickness
Plant coating quality with in-situ application- Low cathodic protection-current requirements
saving cost over the life of the pipeline- Compatible with all pipe diameters and generic plat coating systems
]Minimize inventory, thus saving money
Selection Guide
- Max operating temperature : 85 c (185 f) for pipe diameters up to 36”or DN 900
- Recommended primer : 1019,1027,1033A or 1039
- Recommended pipe preparation : SSPC-SP6/NACE3 or SA 2 1/2
- Additional weld stripping : 933-25
- Repair material : 934-35 or PERP
- Performance : AWW C214
PRODUCT CONTRUCTION :
Inner Layer ( Black ) | Outer Layer (Black or White) | |||||||
980-15 | 980-20 | 980-25 | 980-30 | 955-15 | 955-20 | 955-25 | 955-30 | |
Backing | 9 mils ( 0,222 mm) | 9.5 ( 0.241 mm) | 10 mils ( 0.254 mm ) | 10 mils ( 0.254 mm ) | 10 mils (90.254 mm) | 15 mils ( 0.381 mm ) | 20 mils ( 0.508 mm ) | 25 mils ( 0.635 mm ) |
Adhesive | 6 mils ( 0.152 mm ) | 11 mils ( 279 mm ) | 15 mils ( 0.381 mm ) | 20 mils ( 0.508 mm ) | 5 mils ( 0.127 mm ) | 5 mils ( 0.127 mm ) | 5 mils ( 0.127 mm ) | 5 mils ( 0.127 mm ) |
Product Properties | Test method | Typical Value | Typical Value |
( 980-25 ) | ( 955-25 ) | ||
Tensile Strength | ASTM D1000 | 30 ibs/In ( 52 N/cm ) | 40 ibs/In ( 70 N/cm ) |
Elongation | ASTM D1000 | 225 % | 400 % |
System Properties 50mil system : 980-25+955-25 | ||
Peel Adhesion to Primed Steel | ASTM D1000 | 3000 oz/In ( 33 N/cm ) |
Cathodic Disbonment | ASTM G8 | 0.25 in radius ( 6.4 mm ) |
Water Vapor Transmission Rate | ASTM F1249 | 0.03g/1000in2/24 hr( 0.5g/m2) |
( 1000 F,100%RH) | ||
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-ibs ( 5.5 Nm ) |
Impact resistance | ASTM G-13 | 1000 Ibs,no holydays ( 4450 N,no holidays ) |
Penetration resistance | ASTM G-17 | <15% |
Example : 955-25 BKL 9×800 | |
980 Product type | Standard Ordering options |
25 Total tape thickness in mils | 20 mils (0.51 mm), 25 mils (0.635 mm), 30 mils (0.762 mm) |
BLK Tape backing color | Black ( BLK) |
9 Tape width in inches | 4” (101 mm), 6”(152 mm), 9”(228 mm), 12” (305 mm), 18” (457 mm ) |
800 Tape roll length in feet | 100 ft (30M), 200 ft (61 M), 400 ft (122 M) 600 ft (183 M), 800 ft (244 M) |