3lpe Steel Pipe Field Joint Coating Corrosion Protection Heat Shrink Shrinkable Sleeve

Product Description

3LPE Steel Pipe Field Joint Coating Corrosion Protection Heat Shrinkl Shrinkable Sleeve
HUASHIDA-3LPE heat shrinkable sleeve is composed of cross-linked polythylene back and special heat melt adhesive. Heat melt adhesive has good bonding with PE back, steel pipe and epoxy prime. When heating PE back shrinks, adhesive layer melts, and closely wraps around pipe joints. It forms together with epoxy primer a firm and continuous anti-corrosion body. It is resistant to corrosion, wear, impact, UV and aging, easier to be operated.

Application area:
It is mainly used for 3LPE pipe fiele joint coating, joint closure for oil gas pipeline and water pipeline.
Feature of our heat shrinkable sleeve HUASHIDA-3LPE:
1.fast shrinkage speed,
2.good waterproof performance,
3 good anti-corrosive performance,
4.long service life 5.using pure PE material and imported adhesive for ensuring the quality
TECHNICAL PARAMETERS

NO	Test Item			Unit	Performance	Test Result	Test Method
Backing
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	10% HCL	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.	Test Item		Unit	Performance	Test Result	Test 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

Heat Shrink Sleeve Installation Instruction Bare area surface cleaning
Mixing primer
Preheating
Applying primer Installation of heat-shrinkable sleeve: Installation of closure patch
The sleeve is fully recovered when all of the following have occurred: The sleeve have fully conformed to the pipe and adjacent coating; The are no cold spots or dimples on the sleeve surface. Weld bead profile can be seen through the sleeve. After sleeve is cold, adhesive flow is evident on both edges. CERTIFICATES
CONSTRUCTION SITE
HUASHIDA HEAT SHRINK SLEEVE WORKSHOP
CUSTOMERS' INSPECTION IN HUASHIDA
HEAT SHRINK SLEEVE DELIVERY

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