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

Pipe Size & Tube Size

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.