Joint Protection

Solvent-Free Epoxy Primer

Solvent-Free Epoxy Primer

Model
Application
DH-DF
3PE buried pipeline joint: dry film coating
DH-PP
3PE buried pipeline joint: anti-corrosion coating
DH-WF
3PE buried pipeline joint: wet film coating
Description Performance

DH-DF Dry Film Primer

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  DH-DF is a dry film primer for use on joint coating of buried pipelines. In comparison to wet film primer, it has much higher lap shear strength. It has 99% solid content and is non-volatile. It adheres strongly to substrates. The cured film will not have any bubbles, voids or cracks. The cured primer layer offers superior corrosion protection against of water and chemicals. It has excellent sealing properties and is highly durable.
  Being environmentally friendly and non-toxic, it is the perfect product for anti-corrosion of oil and gas pipelines.


DH-PP Primer

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  DH-PP primer is specially formulated for 3 layer, Polypropylene, buried pipelines. It is the first of its type in China. Compared to other similar products, it has better adhesion, higher bonding strength. In addition to corrosion protection, the coating has very low cathodic disbandment and water permeability.
  The product is simple in construction and has a long life time. It is free of solvents, environmentally friendly and non-toxic.


DH-WF Wet Film Primer

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  DH-WF is a wet film primer for that used on joint coating of buried pipelines. It has a very high solid content and adheres to most of the common substrates. It is chemical resistant and non-toxic. The cured primer layer offers superior corrosion protection against of water and chemicals. It has excellent sealing properties and is highly durable. Mix the part A and part B in the right proportion and apply to the surface of pipes.
  As a green paint, it is widely used for corrosion protection of pipelines.

Property Performance Standard
DH-DF DH-PP DH-WF
Appearance Smooth and even Visual
Thickness µm > 200 > 150 > 150 GB/T 1764
Solid Content % 99 99 99 GB/T 1725
Fineness µm < 100 < 100 < 100 GB/T 1724
Density g/cm3 A 1.59 1.56 1.59 GB/T 13354
B 0.95 0.96 0.96
Adhesion (75°C, 48h) Level 1 Level 1 Level 1 SY/T 0315
Shear Strength (23°C) MPa 22.6 11.5 13.2 GB/T 7124
Cathodic Disbonding mm 65°C, 48h 3.6 4.5 4.4 GB/T 23257
65°C, 30d 12.4 11.5 12.8

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