HT 80 Global Transmission Sleeve
Product Description
HT80 is superior performance heat shrinkable products designed for corrosion protection on field applied girth-weld joints of buried and exposed steel pipelines operating up to 80°C.
Item | Test Method | Typical Value |
Radiation cross-linking PE Backing | ||
Tensile strength | ASTM D 638 | 3200psi(22MPa) |
Elongation | ASTM D 638 | 550% |
Thermal ageing 1) 150°C 21d elongation 2)Tmax +20°C 100d E100/E70 | ASTM D 638 EN 12068 | 420% 0.98 |
Hardness, Shore D | ASTM D 2240 | 55 |
Shrink force | ASTM D 638, 150°C (302°F) | 43psi |
Dielectric strength at23°C | ASTMD 149 | 825volts/(33KV/mm) |
Moisture absorption | ASTM D 570 | 0.05% |
Hot Melt Adhesive | ||
Softening point | ASTM E 28 | 125℃ (257°F) |
Lap shear | ASTM D 1002 EN 12068 @10mm (0.40")/min. | 435psi (3.00N/mm2)@ (73°F) 26psi (0.17N/mm2)@ (176°F) |
Installed Sleeve | ||
Peel to primer @23°C @Tmax | ASTM D 1000 | 113N/cm 15N/cm |
Cathodic disbandment | ASTM G 42, 30 days EN12068 Class C @23°C @80° | 8mm @ 65°C (149F) 6mm 10mm |
Hot water immersion | ASTM D 870, 120 days @Tmax | no delamination no bliste water ingress |
Resistance to thermal ageing(100d/100°C) Peel strength layer to layer P100/PT Peel strength to pipe surface P100/PT | EN 12068, Class C 80 | 3.3 3.7 |
Low temperature flexibility | ASTM D 2671-C | -25°C (-13°F) |
Impact resistance | ASTM G 14 EN 12068. class C | 96 in-lbs >15J no holiday |
Penetration resistance | ASTM G 17, EN 12068. Class C | no holidays @10KV >0.6mm @ 80°C(176°F) |
Holiday detection at 5 kV/ mm + 5 kV | EN 12068.Class C | no holiday |
Epoxy Primer Specific Gravity @23℃-A -B | ASTM D1963 | ≥1.5/<1.0 |