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Three-Layer Polyethylene Anti-Corrosion Coating

METALEN PE-1

Black high-density polyethylene for extruded insulation of steel pipes

Description

METALEN PE-1 is black high-density polyethylene of bimodal type, manufactured from a mix of linear polyethylene and high-density polyethylene by reactive extrusion with nano-activation by organo-modified montmorillonite on modern equipment in the leading-edge process of METACLAY JSC.

METALEN PE-1 has high strength, heating stability, high cracking resistance and unique elasticity at low negative temperatures. The material for special conditions may contain nano-UV-stabilizer.

METALEN PE-1 meets the requirements of STO Gazprom 2–2.3-130-2007 and was certified by Gazprom VNIIGAZ LLC (Opinion No. 313239949-113-2011) for the insulation of steel pipes of any make class with the temperature of up to plus 800 °C.

Application

METALEN PE-1 is recommended for the outer coating layer in pipe insulation by side or circular (longitudinal) extrusion. The use of METALEN PE-1 provides high application rates and, if required, thin layers are achieved with no problem. Low screw drive loads are ensured and high output is achieved during the extrusion owing to nano-activation with modified montmorillonite.

METALEN APE-1

Adhesive based on functionally activated polyethylene for extruded insulation of steel pipes

Descripton

METALEN APE-1 is polyethylene manufactured from a mix of linear polyethylene and high-density polyethylene by reactive extrusion, containing grafted functional groups of maleic anhydride with nano-structuring by organo-modified montmorillonite on modern equipment in the leading-edge process of METACLAY JSC.

METALEN APE-1 is highly adhesive to both polyethylene and epoxy layers in three-layer polyethylene coating for pipes, distinguished by its heating stability, high hot water resistance and unique elasticity at low negative temperatures.

METALEN APE-1 meets the requirements of STO Gazprom 2–2.3-130-2007 and was certified by Gazprom VNIIGAZ LLC (Opinion No. 313239949-113-2011) for the insulation of steel pipes of any make class with the temperature of up to plus 800 °C.

Application

METALEN APE-1 is recommended for the outer coating layer in pipe insulation by side or circular (longitudinal) extrusion. The use of METALEN APE-1 provides high application rates and, if required, thin layers are achieved with no problem. Nano-activation by modified montmorillonite during the adhesive extrusion ensures low screw drive loads, high output, and high adhesion stability when applied on the initial gel state of the epoxy primer to support the interaction with the adhesive’s anhydride groups.