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Ocean Supply And Engineering AThis is to certify that we have purchased Petrolatum tape and paste through “ Tianjin CNPetro Hitech Co.,LTD (Viscous）” for our Petronas pipeline project in Dec.2021 . We found that the performance of forever Petrolatum tape and paste is very good, and there is no failure of any of these Coating Materials and thus these are effective in our system -
Isolering og Blikk asWe purchased Butyl rubber tape from“Tianjin CNPetro Hitech Co.,LTD.from 2020 till now,the products are always arrival on time and without any quality problems. -
AIC GroupThis is to certify that we have purchased sealing tape and petrol tape from Tianjin CNPetro Hitech Co.,LTD LTD for our Anglo Persian project in June.2022 and always they are very much impressed about timely delivery and quality of the goods for which we are really pleased. For any question on regards our experience with the products, please。
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Polypropylene Based Heat-Shrinkable Sleeve That Have High Electrical Resistance And Low Permeability
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xProduct Details
| Adhesive Type | Visco-elastic Based Mastic | Width | 50-1000mm |
|---|---|---|---|
| Peel Adhesion | ≥50N/cm | Impact Resistance | ≥15J |
| Uv Resistance | Yes | Adhesion To Steel | ≥25N/cm |
| Backing Type | HDPE | Temperature Resistance | -20°C To 80°C |
| Color | Black | Material | Cross-linked Polypropylene |
| Thickness | 1.8mm，2.0mm,2.2mm,2.5mm | Temperature Range | -20℃~80℃ |
Product Description
Heat-shrinkable multi-layer sleeves that have high electrical resistance and low permeability
PRODUCT LINE
A series of 2- and 3-layer heat-shrinkable sleeves for applications including pipeline field joint corrosion prevention, mechanical protection, and sealing of district heating and district cooling pipelines.
CORROSION PREVENTION
An irradiation cross-linked & stretched polyolefin backing with an adhesive laminated on in order to form the basic product.
The adhesive may be either visco-elastic based mastic or co-polymer hot melt adhesives to match up with in-service performance requirements.
polypropylene based heat-shrinkable sleeve and is designed forcorrosion prevention and sealing for polypropylene coated pipelines,operating at temperatures up to 120°C. PP is especially suitedfor higher stress conditions caused both by elevated temperatures andby soils with severe contraction between wet-dry cycles.
3LPP HSS is normally used for girth weld protection of steel pipescoated with polypropylene.
Construction: Three-layer system• First layer: Two component liquid epoxy.•
Second layer: High shear strength polypropylene adhesive layer.•
Third layer: Thick cross-linked polypropylene backing layer.
| Test standard | Unit | 3PP 110 | ||
| Adhesive | Softening point | ASTM E28 | ℃(℉) | 110 |
| Lap shear @23℃ | EN12068 | N/cm2 | 550 | |
| Lap shear @23℃ | EN12068 | N/cm2 | 25 | |
| Backing | Specific gravity | ASTM D792 | g/cm3 | 95 |
| Tensile strength | ASTM D638 | MPa (psl) | 24 | |
| Elongation | ASTM D638 | % | 550 | |
| Hardness | ASTM D2240 | Shore D | 55 | |
| Abrasion resistance | ASTM D 1044 | Mg | 35 | |
| Volume resistance | ASTM D257 | Ohm-cm | 1017 | |
| Dielectricvoltage breakdown | ASTM D149 | Kv/mm | 27 | |
| Sleeves | Impact | EN12068 | J | >8 |
| Indentation | EN12068 | mm | 0.1 | |
| Peel adhesion | ASTM D1000 | N/cm | 120 | |
| Peel adhesion | EN12068 | N/cm | >140 | |
| Cathodic disbondment | ASTM G8 | Mm rad | 3 | |
| Water absorption | ASTM D 570 | % | 0.05 | |
| Low Temp.flexbility | ASTM D2671-C | ℃(℉) | >-32(-26) | |
| Fully recovered T thickness | Mm(mil) | 1.9(77) | ||
| Fully recovered L thickness | Mm(mil) | 2.4(96) |