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Heat Shrinkable Wraparound Tape

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HWT 60/80 Heat Shrinkable Wrap-around Tape

-Hand-wrapped, heat shrinkable corrosion protection tape
 

HWT 60/80, heat shrinkable wrap-around tape is designed for corrosion protection and repairing of girth weld joint of buried and exposed steel pipelines, pipeline body, also for pipe bend, pipe elbow, fitting, riser and other irregular configurations.

HWT consist of a radiation cross-linked polyethylene backing, coated with a hot sensitive adhesive which effectively bonds to steel substrates and common pipelines coating, including polyethylene and fusion bonded epoxy. Epoxy primer is applied for HWT installation.

 

Construction:

First layer: Epoxy primer (CP-1/CP-2)

Second layer: High shear strength hot-melt copolymer adhesive

Third layer: Radiation cross-linked, high density polyethylene backing

 

Features & Benefits

HWT provides excellent resistance to cathodic disbondment resulting in effective long-term corrosion protection, the high performance cross-linked backing in

combination with a broad of adhesive can be undertaken for regular or high stress environments. Upon the application of heat, wrap around tape shrinks down to fully encapsulate the protected substrate, the hot melting adhesive flows into all surface irregularities forming a protective barrier against corrosion.

Application guide

HWT 60

HWT 80

Performance

EN 12068 Class C50

NACE RP0303

ISO21809-3

EN 12068 Class C HT UV

NACE RP0303

ISO21809-3

Compatible mainline coatings

FBE, AE*, Coal Tar, HDPUF*, PE, PP

FBE, AE*, Coal Tar, PE, PP

Soil stress restriction

None

None

Max operating temperature

60°C

85°C

Preheat temperature

50°C ~70°C

70°C~90°C

Recommended pipe preparation

SA 2½ or ST 3.0

SA 2½

AE=Asphalt Enamel HDPUF=High Density Polyurethane Foam

➤ More details product information and datasheet, please contact us: sales@cheray.com.cn

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E-mail : sales@cheray.com.cn
Web:www.cheray-polymer.com
Add:15 Mingyang Rd,Beiqiao Hope Industrial Zone,
Xiangcheng District ,Suzhou,Jiangsu,China

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