WSS heat shrinkable belt and Heat Shrinkable Sleeve

Time:2019-01-21

Detail Introduction

WSS heat shrinkable belt and Heat Shrinkable Sleeve

WSS heat shrinkable belt is designed specifically for buried or overhead steel tube joint anticorrosion material and design of heat shrinkable type anticorrosive repairing materials. It consists of radiation crosslinking hdpe base material and special sealed hot-melt adhesive coating compound and into. Suitable for 3 PE, FBE, PP for anticorrosion of pipeline joint repairing and anticorrosive bend area, also can be used in the yellow jacket insulation pipe joint repairing. Special seal hot melt adhesive and PE base material, steel surface and liquid epoxy coating can form good bonding 。

WSS heat shrinkable belt installation construction, under the effect of thermal heat shrinkable belt along the radial uniform shrinkage, hot melt glue line to melt at the same time, uniform coating filled in the pipe surface, and the original pipeline anticorrosion layer form a continuous and compact system, can resist the soil stress, hydrostatic pressure resistance, cathodic disbonding resistance, chemical resistance and the erosion of the mold and other corrosion behavior.

应用指南（执行标准：SY/T0413-2002及EN12008）
	WSS50（mastic）	WSS60	WSS80

Maximum operating temperature	60℃	70℃	85℃
For external anticorrosion coating	PE,FBE,PP or steel	PE,FBE,PP	PE,FBE,PP
Steel pipe preheating temperature	60℃	75℃	85℃
Recommend descaling grade	Sa2.5、St3.0	Sa2.5、St3.0	Sa2.5、St3.0

specifications

WSS60/80 can be applied to all the steel pipe diameter between DN100 - DN2000.

Base material thickness from 1.0 to 1.0 mm, the thickness of the rubber from 0.8 to 2.0 mm.

Performance indicators
performance	test method	Typical values WSS50（mastic）	Typical values WSS60	Typical values WSS80
primer
Solid content （%）	GB/T1728	99.5	99.5	99.5
Cathodic disbonding （65℃，48h）mm	Q/SY GJX0113-2007（附录D）	8	8	8
Base material
The tensile strengthMpa	GB/T1040-92	21	24	24
Elongation at break %	GB/T1040-92	550	550	550
The density of	ASTM D792	0.93	0.94	0.94
The density of MV/m	GB/1408.1-99	35	35	35
Volume resistivity Ω·m	GB/T1410-89	4.0×1015	4.0×1015	4.0×1015
Thermal aging (150℃，21天)	GB/T1040-92
tensile strength Mpa		17	18	18
Elongation at break %		480	480	480
Resistance to ultraviolet radiation aging	EN12068	EN12068
Elongation at break %		450	480	480
Hot melt adhesive
Softening point ℃	GB/T4507-85	78	113	120
Lap shear strength Mpa	ASTM D1002-05	0.8	0.8	1
The low temperature toughness		-30℃	-30℃	-30℃
Heat shrinkable belt
Peel strength	GB/T2792-98
primer on the steel N/cm		90	160	140
对PE N/cm		85	110	95
Cathodic disbonding (70℃,30d)mm	SY/T 0413-2002	/	18	18
Hot water immersion	ASTMD870-2002	Under the experiment condition no delamination, no water trace	Under the experiment condition no delamination, no water trace	Under the experiment condition no delamination, no water trace
Bibulous rate	ASTM D570	0.001%	0.001%	0.001%

WSS_heat_shrinkable_belt_and_Heat_Shrinkable_Sleeve_03_Exporting to site welding

WSS_heat_shrinkable_belt_and_Heat_Shrinkable_Sleeve_04_final finished

WSS_heat_shrinkable_belt_and_Heat_Shrinkable_Sleeve_05_apply method

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