Granule Form Hot Melt Adhesive Of Steel pipe Heat Shrinkable Sleeves For Steel Pipe Joints
Hot melt adhesive - Technical data sheet
HST 80
| No. | Test Item | Test Method | Requriement | Test Result |
| 1 | Ring&Ball softening point,℃ | ASTM D36 | ≥120 | 121 |
| 2 |
Lap Shear strength,primed steel/primed steel 23±2℃,MPa 80±2℃,MPa |
ISO 4587 ISO 4587 |
≥1.0 ≥0.05 |
1.6 0.06 |
| 3 |
Lap Shear Strength To PE,23±2℃,MPa To PE,80±2℃,MPa To primed PE ,23±2℃,MPa To priemd PE,80±2℃,MPa |
ISO 4587 ISO 4587 ISO 4587 ISO 4587 |
≥1.0 ≥0.05 ≥1.0 ≥0.05 |
1.7 0.06 1.6 0.07 |
| 4 | Brittle temperature ,℃ | ASTM D2671 | ≤-15 | ＜-15 |
| 5 |
Peel strength,N/cm To steel,23±2℃ To steel,80±2℃ To primed steel,23±2℃ To primed steel,80±2℃ To PE coating,23±2℃ To PE coating,80±2℃
|
ASTM D1000 |
≥70 ≥10 ≥70 ≥10 ≥70 ≥10 |
89.2 11.8 92.6 12.8 93.3 12.4 |
Heat shrinkable tape, also known as anti-corrosion heat shrinkable wrap-around sleeves of pipeline, is designed for joint coating of buried or overhead steel pipeline and reserved welding joint. It is used after connecting (welding) to form a pipeline. It is composed of a heat shrinkable tape and a fixing closure patch to form a tubular body, which is used by the coating method.Heat shrink sleeves structure:
- The inner layer is two-components epoxy primer which coated on steel pipe;
- Intermediate level is special hot melt adhesive ;
- Outer layer is modified radiation crossing linking polyethylene backing.
- 2 PE heat shrink sleeves structure without epoxy primer.
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