Epoxy-Coated Steel Pipe Manufacturing Process

Release date:

2019-04-07

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Steel Pipe Knowledge

Epoxy‑Coated Anti‑Corrosion Steel Pipes I. Composition: 1. Steel pipes: including seamless steel pipes, straight‑seam steel pipes, spiral‑welded steel pipes, and various other steel pipelines. 2. Epoxy coating: This product is a two‑component, high-solids epoxy coating, available in primer and topcoat forms. Component A consists of epoxy resin, pigments, fillers, and additives; Component B is a modified amine‑based curing agent [1]. II. Properties and Applications: - Excellent durability: The cured epoxy film is tough, water‑resistant, non‑toxic, and environmentally harmless. - Strong adhesion: Outstanding bonding between coating layers. - Superior rust resistance and water resistance: Utilizing premium anti‑corrosion ingredients to ensure long‑term protection. - High mechanical strength: The coating film is robust, offering excellent wear resistance and impact resistance. - High solids content: Produces a relatively thick coating film. - Cures at room temperature: No need for large-scale baking equipment. Widely applicable for internal lining of water tanks, pipelines, reservoirs, water towers, and other water‑supply facilities, as well as for cargo holds transporting sugar, grains, and similar materials. It can also be used as an interior coating for swimming pools, power‑plant cooling towers, and metal or concrete structures storing fuel oil, gasoline, and other substances. III. Application and Storage: 1) Prior to coating, thoroughly clean the substrate surface of dust, oil, scale, and other contaminants to achieve Sa2.5 cleanliness, ensuring optimal coating quality. Avoid introducing any moisture during application. 2) Mixing procedure: Open Component A completely, add Component B to Component A, and mix thoroughly until uniform. Allow the mixture to mature for 30 minutes before application. 3) This material must be mixed and used immediately; any prepared coating should be applied within eight hours. Unmixed portions must be tightly sealed and stored. Halt work on rainy days or when relative humidity exceeds 75%. For areas exposed to severe corrosive environments, multiple coats are recommended. 4) Store the product in a cool, dry place, protected from direct sunlight, away from open flames and heat sources. Shelf life is twelve months; upon expiration, re‑evaluate all technical parameters. If the product meets the required specifications, it may continue to be used.

Epoxy-coated anti-corrosion steel pipe

I. Composition: 1. Steel Pipes: including seamless steel pipes, straight-seam steel pipes, spiral-welded steel pipes, and various other steel piping products.

2. Epoxy Coating: This product is a two-component, high-solids coating based primarily on epoxy resin. It is available as both a primer and a topcoat. Component A consists of epoxy resin, pigments, fillers, and additives, while Component B is a curing agent formulated from modified amines [1].

II. Characteristics and Application Areas:

It exhibits excellent durability; the cured epoxy coating is tough and water-resistant, with a non‑toxic film that does not pollute water.

It exhibits strong adhesion, with excellent bonding between coating layers. It offers outstanding rust‑preventive and water‑resistant performance, thanks to the use of premium anti‑rust ingredients that ensure long‑lasting protection. The coating boasts high mechanical strength, a tough film, and superior resistance to abrasion and impact. It features a high solids content, resulting in a thick, durable finish. Film formation occurs at room temperature, eliminating the need for large-scale baking equipment.

It is widely applicable for interior coating of water tanks, water pipelines, water storage tanks, water towers, and other water‑supply equipment, as well as for use in cargo holds containing sugar and grains. It can also serve as an interior coating for swimming pools, power‑plant cooling towers, and metal or concrete structures used to store fuel oil and gasoline.

III. Construction and Storage:

1) Prior to coating, the surface of the object must be thoroughly cleaned of dust, oil, scale, and other contaminants to achieve a Sa 2.5 cleanliness level, thereby ensuring coating quality. Water ingress is strictly prohibited during application.

2) The mixing method is as follows: open the container of Component A, add Component B to Component A, and stir thoroughly until uniform. Allow the mixture to mature for 30 minutes before application.

3) This material must be mixed and used immediately; the prepared coating must be applied within eight hours. Any unused portion should be tightly sealed and stored. Construction should be suspended on overcast or rainy days, or when the relative humidity exceeds 75%. For areas subject to severe corrosive environments, multiple coats are recommended.

4) The product should be stored in a cool, dry place, protected from direct sunlight, kept away from sources of ignition, and maintained at a safe distance from heat sources. The shelf life is twelve months; upon expiration, all technical specifications must be re‑tested. If the product meets the required standards, it may continue to be used.

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