Shaic International Co.

Heat Shrinkable Tube -SHAIC HT-350

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Shaic International Co.
[Korea]

Address
316-6 Bonsan-ri, Jinyoung-eup, Gimhae-si, Gyeongsangnam-do
Phone
82-55-3420401
Contact name
Young-Myung Kim

Quick Information

  • Place of Origin: Korea

Description

SHAIC HT-350 is a heat shrinkable tube designed for corrosion protection of field-welded joints of plastic coated steel pipelines. It has a thick crosslinked polyethylene backing coated with butyl rubber based mastic sealant or hot melt adhesive. When heated the backing layer shrinks and the sealant flows and forms a reliable corrosion protection seal onto metal and adjacent coating surfaces.

Tubular Configuration
SHAIC HT-350 needs no patch closure and should be slid over the pipe prior to welding the joint. Its unique design reduces time for handling, positioning and installation of Patch Closure. This minimizes application time and labour costs.

Long-term Corrosion Protection
After heating, formed corrosion protection seal & strong backing provides outstanding waterproofing effect and high chemical resistance.
SHAIC HT-350 resists impact, abrasion and ultraviolet light. Free from penetrating pinholes due to multi-layered structure. Excellent resistance against cathodic disbondment, dielectric breakdown.

Simple Application
No special skills, equipment, patch closure nor primer is needed. Slide the tube over the pipe before welding the joint. Position the tube over welded, foreign matters free and preheated joint. Remove the release liner and temporarily insert 'spacing pads' between the pipe and the tube at both upper edges of the tube is shrunk at the center, and then move torch circumferentially to heat the left and the right half of the tube. Finish off by heating over the entire tube vertically to ensure a uniform adhesion and by using a roller or gloved hands to remove wrinkle and air.

Physical Properties

Properties
Test Method
Values
Mastic
Hot Melt
Inner
Layer
Softening Point
ASTM E28
105°C(221°F)
85°C(185°C)
Lap Sheear
DIN30672 (ASTM1002)
24N/cm2(35psi)
28N/cm2(40psi)
Outer
Layer
Tensile Strength
ASTM D638
17Mpa(2500psi)
17Mpa(2500psi)
Elongation
ASTM D638
400%↑
400%↑
Hardness
ASTM D2240
45↑
45↑
Heat
Aging
Elongation
After 70days
ASTM D638
(DIN 30672)
528%
528%
After 100days
524%
524%
Tensile
Strength
After 70days
196N/10mm
196N/10mm
After 100days
191N/10mm
191N/10mm
Volume Resistivity
ASTM D257
1015
1015
Dielectric Breakdown
ASTM D149
25kV
25kV
Tube
Impact Resistance
ASTM G14
Pass holiday detection test with 15kV detector
Pass holiday detection test with 15kV detector
Penetration Resistance
ASTM G17
Peel Strength
ASTM D1000
30N/cm
62N/cm
Water Absorption
ASTM D570
0.1%↓
0.1%↓
Cathodic Disbondment
ASTM G8
15mm
7.9mm
Adhesion
Strength
To P.E
ASTM D1000
24N/cm
34N/cm
To Steel
32N/cm
64N/cm

Pipe Size & Tube Size

Pipe Size
 
Pipe O.D
(mm)
Pipe
Circumference
(mm)
SHAIC HT-350
DN
Inch
Length
(mm)
Thickness(mm)
Width
(mm)
Outer
Inner
50
80
100
125
150
200
250
300
350
400
450
500
550
600
2
3
4
5
6
8
10
12
14
16
18
20
22
24
60.5
89.1
114.3
139.8
165.2
216.3
267.4
318.6
355.6
406.4
457.2
508.0
558.8
609.6
190
280
359
439
519
679
840
1,000
1,117
1,276
1,436
1,595
1,755
1,914
280
350
440
520
600
810
970
1,130
1,260
1,420
1,590
1,750
1,910
2,060
1.25
0.75
450

Ordering Information

Standard Tube Type
Regular Thickness
R1
BL-Black, YE-Yellow
18"(450mm)
2"~24"(DN50-600)
1.25
R1-0.75
T-Tube
*Note
1. Min. Sleeve Width=Base Steel Width + 2"(50mm) min. on each side of the pipe joint
2. Various width, length and thickness are available for project requirements.


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