For
corrosion protection of flanges, casings,
bell and spigot joints and other high
profile couplings.
Product description
The CHINA KINWA Heat Shrinkable Tubular Sleeves
(HTS) are superior performance heat shrinkable products
designed for corrosion protection of flanges, casings,
bell and spigot joints and other high profile couplings.
Heat Shrinkable Tubular Sleeves consist of a crosslinked
polyolefin backing, coated with a protective heat
sensitive adhesive which effectively bonds to steel
substrates and common pipeline coatings including
polyethylene and fusion bonded epoxy.
Features & Benefits
The CHINA KINWA Heat Shrinkable
Tubular Sleeves consist of a unique tubular configuration
that has been factory constructed, resulting in
quick and reliable field installation.
Once installed, the Heat Shrinkable Tubular Sleeves
have excellent structural integrity, and provide
the substrate with durable protection against mechanical
and chemical attack. The high performance crosslinked
backing provides superior abrasion resistance and
can be engineered for regular or high stress environments.
In combination with high performance adhesives,
the Heat Shrinkable Tubular Sleeves provide excellent
resistance to cathodic disbondment resulting in
effective long term corrosion protection.
Typical Product Properties
Components
Properties
Test
method
Unit
Typical
value
Adhesive
Softening point
(ring &ball)
ASTM-E28
℃
110±5
Peel strength at
25 ±5 ℃（PE/PE）
GB/T2792
N/cm
≥110(min)
Peel strength at
25 ±5 ℃（PE/STEEL）
GB/T2792
N/cm
≥110(min)
Peel strength at
25 ±5 ℃（PE/EXPOSY）
GB/T2792
N/cm
≥110(min)
Lap shear strength
at 23oC
ASTM-D1002
N/cm2
500
(min)
Backing
Tensile Strength
ASTM-D638
Psi
≥2400
Elongation
ASTM-D638
%
≥550
Heat aging at 150oC
for 14days（Tensile Strength）
ASTM-D638
Psi
≥600
Heat aging at 150
℃ for 14days（Elongation ）
ASTM-D638
%
≥400
Volume resisitivity
at 23 ℃
ASTM-D252
Ohm-cm
≥1×1015
Hardness
ASTM-D22
Shore
D
≥55
Water absorption
at 23 ℃ for 24hrs
ASTM-D570
%
≤0.1
Heat shock 250oC
for 4hrs
ASTM-D267
Pass
Dielectric strength
at 23 ℃
ASTM-D149
Kv/mm
≥28
Sleeve
Resistance to impact
at 23 ℃
ASTM-C14
Inch/lbs
130
Cathodic disbond
ASTM-C42
mm
15
Penetration resisitance
ASTM-G17
No
holiday
Soil stress creep
resistance at 80 ℃ for 24hrs
Inch
≥0.1
Specification
Specification
Pipe
Diameter
Width
of Sleeve
Shrink
Ratio
Remarks
HTS76x400
Ø
76
400
≥50
Recommended the backing thickness
should be over 1.2mm and adhesive
layer should be over 0.8mm
HTS89x500
Ø
89
500
≥50
HTS114x500
Ø
114
500
≥50
HTS159x500
Ø
159
500
≥45
HTS168x500
Ø
168
500
≥45
HTS219x500
Ø
219
500
≥45
HTS273x500
Ø
273
500
≥45
HTS323x500
Ø
323
500
≥45
HTS355x500
Ø
355
500
≥45
HTS377x500
Ø
377
500
≥45
HTS406x500
Ø
406
500
≥45
Recommended the backing thickness
should be over 1.5mm and adhesive
layer should be over 0.8mm
HTS457x500
Ø
457
500
≥45
HTS508x500
Ø
508
500
≥45
HTS559x500
Ø
559
500
≥45
HTS610x500
Ø
610
500
≥45
HTS660x500
Ø
660
500
≥45
HTS711 x500
Ø
711
500
≥45
HTS764x500
Ø
764
500
≥45
HTS813x500
Ø
813
500
≥45
HTS1016x500
Ø
1016
500
≥45
HTS1250x500
Ø
1250
500
≥45
All specifications of HTS are in accordance
with difference pipelines diameters with outer
corrosion protection coating, specially used
for 2-layer PE 3-layer PE coated pipeline.
Backing thickness is from 1.0 to 2.0 and adhesive
layer thickness is from 0.8 to 2.0.
No.3286 Gongnong Street, 
0086-431-85694042 
0086-431-85683672 
130021
