HS-340 Series
Product HT-340 Series
SHAIC HS-340 is a heat shrinkable wraparound sleeve 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. Hot Melt or Mastic shall depend on project requirements. When heated the backing layer shrinks and the sealant flows and forms a reliable cor rosion protection seal onto metal and adjacent coating surfaces.
Cut Sleeve is normally supplied with separate Patch Closure, which is coated with a high shear-strength adhesive; however, there are different types and sizes to comply Simple Application with individual requirements. It is supplied in bulk rolls as well, and has superheavy duty, heavy duty and regular thickness.
Long-term Corrosion Protection
After heating, formed corrosion protection seal & strong backing provides outstanding waterproofing effect
and high chemical resistance. SHAIC HS-340 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 and equipments are needed. Sleeve is installed in minutes with a propane torch.
Wrap the sleeve around foreign matters-free, preheated surface. Fix the center of preheated patch closure
on the over wrapped end and start heating the sleeve in the center. Move the torch around pipe
circumferentially to heat the left and the right half 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.
Bulk Rolls
SHAIC HS-340 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.
Physical Properties
| Properties | Test Method | Values | |||
|---|---|---|---|---|---|
| Inner Layer |
Softening Point | ASTM E28 | 110°C(230°F) | ||
| Lap Shear | DIN 30672 (ASTM D1002) | 24N/cm2(35psi) | |||
| Outer Layer |
Tensile Strength | ASTM D638 | 22Mpa(3100psi) | ||
| Elongation | ASTM D638 | 400%↑ | |||
| Hardness | ASTM D2240 | 50↑ | |||
| Volume Resistivity | ASTM D257 | 1015Ω㎝ ↑ | |||
| Dielectric Breakdown | ASTM D149 | 28kV | |||
| Sleeve | Impact Resistance | ASTM G14 | Pass holiday detection test with 10kV detector |
||
| Penetration Resistance | ASTM G17 | ||||
| Water Absorption | ASTM D570 | 0.05%↓ | |||
| Cathodic Disbondment | ASTM G8 | 20mm | |||
| Adhesion Strength |
To P.E | ASTM D1000 | 40N/cm | ||
| To Steel | 60N/cm | ||||
