Heat Shrinkable Tape
I. System description:
Heat Shrinkable Tape is designed to protect the weld joint of
buried or exposed steel pipelines and insulated pipeline. This
sleeves are manufactured from high quality cross linked
polyethylene material. Hot melt adhesive provides excellent
adhesion with the surface of steel pipeline, PE coating. Meanwhile
it forms a continuous and firm anti-corrosive system with the
surface of the pipeline.
The Polyethylene Heat shrinkable Tape needs no primer nor patch
closure and reduces application time and labour costs.
Ⅱ. Structure
The specification of the tape consists of three layers,
Adhesive: butyl rubber based hot melt adhesive
Film backing: Radiation crosslinked polyethylene
Interleaf:Antiadhesive Film Treated with Silicone
Ⅲ. Features
After heating, formed corrosion protection seal
Strong backing provides outstanding waterproofing effect
High chemical resistance. resists impact, abrasion and ultraviolet
light.
Excellent resistance against cathodic disbondment, dielectric
breakdown.
Simple Application
Ⅳ .Physical Properties
Product Data Sheet Total Thickness:40mil, 50 mil,60 mil ,65 mils.
Width:50,100,150,300,400,500,800 mm
Length: 10 m
Tensile Strength:35 N/cm
Elongation:400%
Adhesion Strength to pipe:30 N/cm
Application temperature: -10 -60 ℃
Temperature resistance:-50 ℃ - 80℃
Shelf Life: 12 months
Ⅴ .Application
No Special skills, equipments, patch closure nor primer are needed.
Its superior flexibility provides easy and reliable application for
irregular configurations of fittings, bends and elbows and small
diameter of straight pipes
Wrap spirally the tape over foreign matters-free and preheated
surface, beginning at least 25~50mm (1~2 ) onto pipe coating. Wrap
the tape with enough tension to obtain conformability and with
minimum 50% of overlapping, while removing the release liner. Warm
the end part of the tape and press down firmly. Using a torch,
start at the edge of the tape and heat circumferentially around the
coated pipe.
Finish off by heating over the entire tape vertically to ensure a
uniform adhesion and by using a roller or gloved hands to remove
wrinkle and air.
VI. Techinal Data