coating steel coils

Coated steel is ideal for customers seeking an economical and effective way to protect steel from corrosive environments. We can provide a very wide range of products, you can click on our product list to browse more products, or directly send us an e-mail：export@bomisgroup.com, we can provide you with a very complete product program according to your needs.

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Application

The main production processes of the color coated coils includes pre-treatment process, coating process, and baking process.

Production Process: Uncoiling-degreasing-washing-passivation-drying-cooling-painting-drying and curing-cooling

Pre painted Galvanized Steel Coils Structure

Prepainted steel coil coatings can be divided into three categories: primer, topcoat, and backcoat. Common ones are 2/2 and 2/1 coating structures.

The back side of the 2/1 can be coated with a layer of primer or only a layer of backcoat. It is mainly used for sandwich panels, which require the coating to have good bonding and foaming properties. The 2/2 uses a two-coat system of primer and backcoat, and is used as a single steel sheet.

Top Finish Coating (PE/HDP/PVDF, etc.), When the thickness is above 20um, it can effectively prevent the damage of ultraviolet rays and harsh environments to the coating.

1.Primer Coating

2.Surface Treatment Layer(Chromate Coating)

3.Metallic Coated Layer (zinc)

4.Steel Substrate (Cold Rolled Steel Sheet)

5.Metallic Coated Layer (zinc)

6.Surface Treatment Layer (Chromate Coating)

7.Back Primer

8.Back Finish Coating(Epoxy, Polyester )

product specifications

Package	1. Galvanized metal & waterproof paper around the coil. 2. Both ends are covered with disks. 3. Inner and outer protective steel rings on edges. 4. 4*5 metal strapping bands and circumferential bands to make it stable.
Application	Our steel products are mainly applies in some professions, such as Structural use, roofing, corrugated roofing, commercial use, household appliance, industry... 1. Construction: (Outside) workshop, agricultural warehouse, residential precast unit, corrugated roof, wall, rainwater drainage pipe, terrace, retailer booth, roller shutter door (Inside) door, doorcase, light steel roof structure, folding screen, ceiling, elevator, stairway, vent gutter 2. Household appliance: Refrigerator, washer, switch cabinet, instrument cabinet, air conditioning, micro-wave oven, bread maker 3. Furniture: Central heating slice, lampshade, chifforobe, desk, bed, locker, bookshelf 4. Carrying trade: Exterior decoration of auto and train, clapboard, container, isolation lairage, isolation board 5. Others: Writing panel, garbage can, billboard, timekeeper, typewriter, instrument panel, weight sensor, photographic equipment
Port of Shipment	Qingdao Port, or Tianjin Xingang port , China.
Date of Delivery	Within 15-20 days after we receive deposit or L/C at sight.
Payment	L/C at sight or T/T.
Transportation	Container / bulk ship / Train
Supply Ability	50,000MT per month.

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