Quanmin Heat Shrink Sleeves provides a range of anticorrosion protection, use for field girth weld joints in distribution and transmission system. As wraparound heat-shrinkable products, provide corrosion protection solutions for oil, gas and water transmission pipelines.

Structure:

2 Layer-Primerless Wraparound Sleeves
2 Layer: Primerless Wraparound Sleeves with Mastic adhesive, is a two-layer field-joint coating system without any primer coating.
Max operating Temperature for pipeline:
40°C (104°F), 55°C (131°F), 65°C (149°F), 85°C (185°F)
First layer: Low preheat Mastic adhesive;
Second layer: Radiatioin cross-linked HDPE backing.
No primer required for two-layer products – install directly on cleaned, preheated surface.
Available in Unisleeve construction – One-piece protective sleeve with pre-attached closure patch.
Available in Bulk rolls consisting – Two piece protective sleeve with separate closure patch.

3 Layer-Primer Wraparound Sleeves
3 Layer: Primer Wraparound Sleeves with Hot melt adhesive, is a three-layer field-joint coating system with Epoxy Primer coating.
Max operating Temperature for pipeline:
65°C (149°F), 85°C (185°F)
First layer: Solvent-free two-component Liquid epoxy;
Second layer: Copolymer Hot-melt adhesive;
Third layer: Radiatioin cross-linked HDPE backing.
Unique hotmelt copolymer adhesive layer provide superior corrosion protection and effective long-term adhesion to pipelines operating temperature up to 85°C.
Three-layer sleeves with epoxy primer and hotmelt copolymer have excellent resistance to both cathodic disbondment and hot water immersion even at maximum rated operating temperature.
Available in Unisleeve construction – One-piece protective sleeve with pre-attached closure patch.
Available in Bulk rolls consisting – Two piece protective sleeve with separate closure patch.