SHAIC HS-3401 three-layer heat shrinkable wraparound sleeve is designed for welded joint protection with epoxy
primer of plastic coated steel pipelines. It has a thick cross-linked polyethylene backing coated with heat
sensitive adhesive and two part of liquid epoxy primer. Apply epoxy primer to the pipe surface and then adhesive
flows and forms a reliable corrosion protection seal onto epoxy and adjacent coating surfaces.
Long-Term Corrosion Protection
After heating, formed corrosion protection seal and strong backing provides outstanding waterproofing effect and high
SHAIC HS-3401 3-layer corrosion protection system resists impact, abrasion and ultraviolet light as well as
excellent resistance against cathodic disbondment, dielectric breakdown.
SHAIC HS-3401 is supplied in bulk rolls, which is cut in the field for any size of pipe.
No need to drive to warehouse and just cut customized length in the field in time that reduces inventories and
saves the cost & time
Sub-Materials- Epoxy primer Base & Cure
- Applicator pad
- Mixing cup
- Stirring stick
- Digital Thermometer
SHAIC Heat Shrinkable sleeve can be used 3-layer or 2-layer installation upon your specific project requirement.
Please contact with our representative for appropriate installation. Apply epoxy primer over foreign matter-free and
pre-heated surface. Wrap the sleeve around the pipes.
Fix the center of pre-heated patch closure on the overlapped end and start to heat sleeve in the center.
Move the torch around pipe circumferentially to heat the left and the right of sleeve. Finish off by heating vertically over the entire sleeve to ensure a uniform adhesion and by using a roller or gloved hands to remove wrinkle and air.
SHAIC EPOXY PRIMER is designed for 3 layer coating system for superior corrosion protection of field joints of
steel pipelines. Epoxy primer corrosion protection resists impact, abrasion as well as cathodic disbondment,
1. Prepare the pipe surface as recommended in the produst application.
2. Pour cure into base as 3 parts base to 1 part of cure.
Stir the mixture for a minimum of 30 seconds to ensure homogeneous mixture.
3. Apply mixed epoxy primer as indicated in the product application.
4. Epoxy Primer covers 20 sq.m/gallon(215 sq./gallon) or 5.3 sq.m/liter(57 sq.m/liter).
This coverage is based on 4 to 6 mils of thickness & assuming 20% waste.
- Specific gravity Base : 1.65 (ASTM D 1475)
Cure : 1.00 (ASTM D 1475)
- Pot life: 25minutes in condition of 23 (73)
- Shelf life: 2 years in condition of out of sunlight (between 10 (with 20)
- Flash point Base: 98 (234)
Cure: 95 (228)
- Mixing curing temperature: 10 (50)
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