SHAIC HT-330 is a hand wrapped heat shrinkable tape designed for corrosion protection of straight pipes, fittings,
bends, elbows and other irregular configurations. It has a cross-linked polyethylene backing coated with butyl rubber
based thermoplastic adhesive. When heated, the backing layer shrinks and the adhesive flows and forms a reliable
corrosion protection seal onto metal and adjacent coating surfaces.
SHAIC HT-330 needs no primer nor patch closure and reduces application time and labour costs.
Long-term Corrosion Protection
After heating, formed corrosion protection seal and strong backing provides outstanding waterproofing effect and high chemical resistance.
SHAIC HT-330 resists impact, abrasion and ultraviolet light. Excellent resistance against cathodic disbondment, dielectric breakdown.
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 pre-heated 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.
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 cross-linked 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 corrosion protection seal onto metal and adjacent
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 with individual requirements. It is supplied in bulk
rolls as well, and has super-heavy 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.
No special skills and equipments are needed. Sleeve is installed in minutes with a propane torch.
Wrap the sleeve around foreign matters-free, pre-heated surface. Fix the center of pre-heated patch closure on
the overlapped 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.
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
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