Description

3LPE (Standard ISO 21809-1:2018)

The epoxy powder coating is the implementation of ISO 21809-1:2018 standard, which is the bottom design of the three-layer structure of polyethylene in buried steel-made pipe, using appropriate epoxy resin, curing agent, pigment, filler, etc., and can form a composite anti-corrosion system with excellent performance with intermediate layer adhesive and outer polyethylene.

1. Application scope and characteristics

● Compared with other forms of anti-corrosion, it has the characteristics of good adhesion, strong cathode disbondment, and collision and damage prevention.

2. Method and dosage

1 .Coating method: Electrostatic spraying.

2 .Theoretical dosage: 150g/M2/100μm.

3 .Surface treatment: Sandblasting or Pelblasting.

4 .Curing instructions: Apply the powder coating on the surface of 180~220℃. When the powder coating forms a gelatinized state, the middle adhesive layer is squeezed and wound, so that the two layers are integrated into one, and then wrap the polyethylene layer, and finally form a complete three-layer coating structure.

3.Production Department

4. Paking