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.
|Softening Point||ASTM E28||110°C(230°F)|
|Lap Shear||DIN 30672 (ASTM D1002)||24N/cm2(35psi)|
|Tensile Strength||ASTM D638||22Mpa(3100psi)|
|Volume Resistivity||ASTM D257||1015Ω㎝ ↑|
|Dielectric Breakdown||ASTM D149||28kV|
|Sleeve||Impact Resistance||ASTM G14||Pass holiday
with 10kV detector
|Penetration Resistance||ASTM G17|
|Water Absorption||ASTM D570||0.05%↓|
|Cathodic Disbondment||ASTM G8||20mm|
|To P.E||ASTM D1000||40N/cm|