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What are the commonly used coatings on valve surfaces

1. Body epoxy coating

Corrosion resistance

Epoxy-coated steel bars have good corrosion resistance, and the bond strength with concrete is significantly reduced. It is suitable for industrial working conditions in humid environments or aggressive media.

strong adhesion

The presence of polar hydroxyl and ether bonds inherent in the molecular chain of epoxy resins makes it highly adhesive to various substances. Epoxy resin has low shrinkage during curing, and the internal stress generated is small, and the protective surface coating is not easy to fall off and fail.

Electrical properties

The cured epoxy resin system is an excellent insulating material with high dielectric properties, surface leakage resistance and arc resistance.

Mold resistant

Cured epoxy systems are resistant to most molds and can be used in harsh tropical conditions.

2. Valve plate nylon material

Nylon sheets are extremely corrosion-resistant and have been successfully used in many applications such as water, mud, food, and desalination.

Outdoor

The nylon board coating can pass the salt spray test, and the coating has not peeled off after being immersed in sea water for more than 25 years, so there is no corrosion to metal parts.

Abrasion resistance

Has very good damage resistance.

Impact resistance

There is no sign of peeling under strong impact.

3. Zero treatment of carbon steel valve plate

Provide protection to the base metal and prevent the metal from being corroded to a certain extent;

Used for priming before painting to improve the adhesion and anti-corrosion ability of the paint film;

In the metal cold processing process Anti-friction lubrication.

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Post time: Nov-04-2022