Product Description

Heat Shrinkable Sleeve for Mrp Pipe Joint Heat Shrink Wrapper

Radiation cross-linked Polyethylene (PE) Heat Shrinkable Sleeve is mainly used in anti-corrosion, repairing of oil gas pipeline,is fit for 3PE oil gas steel pipe, 2PE steel pipe, thermal insulating pipe, Epoxy powder coating, and PE drainage pipe etc. We have National Patent certifications.

Radiation crosslinked PE heat shrinkable sleeve is made by basic material and melt adhesive. Our product is with strong adhesion to make sure good quality of project; easier operation, quick shrinking, low cost, perfect anti-water permeating, anti-chemical corrosion, good insulativity and aging resistance, is ideal material of anti-corrosion and thermal insulating system.

EVA is imported. Brand Matsui Japan or Dupont USA
We sold it to Vietnam,Sudan, Kenya, Russia, Kazakhstan,Australia, Turkey etc.

Specifications
---3 Layer PE Coating Pipe
---Offeshore &Underground
---Oil, Gas,Water pipeline
---DIA2''-72''
---Pipeline size: from Ø 108 to Ø 1554 ( 4''---60'')
Sleeves width: 100mm, 150mm,200mm, 300mm,450mm,500mm,600mm,900mm
Closure patch: 100mm, 150mm,200mm (4'', 6'', 8'')

Product 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.

Heat Shrinkable Sleeves provide great corrosion protection, Superior resistance to Cathodic Disbondment and excellent durability against abrasion and chemical attack. The result is effective, good performance of sealing, wide application, easy to operate and preheating temperature low (50 °C) ,long term protection against corrosion.
Cross-linked backing provides superior abrasion, mechanical and chemical attack resistance.
High performance adhesive provides excellent resistance to Cathodic Disbondment to ensure long-term corrosion protection.
Just-in-time customized lengths allow bulk rolls to be field cut to protect any pipe size
Open sleeve configuration allows the product to be applied after the pipeline has been welded and cleaned.

NO	Text Item			Unit	Performance	Text Result	Text Method
Back Material
1	Tensile Strength			MPa	≥17	19.47	ASTM D638
2	Elongation			%	≥400	626	ASTM D638
3	Vicat Softening Point			ºC	≥90	92	ASTM D1525
4	Brittleness Temperature			ºC	<-65	<-65	ASTM D2671C
5	Dielectric Strength			MV/m	≥25	33.13	ASTM D149
6	Volume Resistivity			Ω.m	≥1*1013	1.1*1013	ASTM D257
7	Environment Stress Crack			h	≥1000	>1000	GB/T1842
8	Chemical resistance (7d)	10% HCI	Tensile strength	MPa	≥85	104.9	ASTM D638
			Elongation	%	≥85	96.3	ASTM D638
		10% NaAH	Tensile strength	MPa	≥85	102.1	ASTM D638
			Elongation	%	≥85	95.6	ASTM D638
		10% NaCL	Tensile strength	MPa	≥85	108.3	ASTM D638
			Elongation	%	≥85	94.1	ASTM D638
9	Thermal aging (150ºC,168h)		Tensile strength	MPa	≥14	20.7	ASTM D638
			Elongation	%	≥300	630	ASTM D638

 

NO.	Text Item		Unit	Performance	Text Result	Text Method
Adhesive
1	Softening Point		ºC	≥90	90.1	ASTM E28
2	Brittleness Temperature		ºC	<-15	<-15	ASTM D2671C
3	Lap Shear		MPa	≥1.0	1.5	ASTM D1002
4	Peel Strength  (23±2ºC)	Steel	N/cm	≥70	145.6	ASTM D1000
		Primer	N/cm	≥70	205.9	ASTM D1000
		PE layer	N/cm	≥70	190.0	ASTM D1000
Non-solvent Epoxy Primer
5	Shear of cured primer		MPa	≥5.0	12	SY/T0041