What are the specific steps for anti-corrosion treatment of fiberglass spray towers?

The specific steps for anti-corrosion treatment of fiberglass spray tower are as follows:

preparation in advance

1. Safety protection: Set up safety warning signs to ensure the safety of the construction area. Construction personnel must wear protective equipment such as safety helmets, protective goggles, gloves, etc.

2. Surface cleaning: Use a high-pressure water gun or compressed air to remove dust, dirt, rust, and other impurities from the surface of the tower. For stubborn stains, sandpaper or wire brush can be used for polishing, but care should be taken to avoid damaging the surface of the fiberglass.

3. Defect repair: Check the surface of the tower for cracks, holes, wear and other defects. For smaller cracks, fiberglass special repair adhesive can be used to fill them; For larger defects, it is necessary to use fiberglass reinforced plastic materials for repair, such as laying fiberglass cloth and applying resin.

Primer application

1. Preparation of Primer: Accurately weigh and prepare the fiberglass special primer according to the product manual to ensure even mixing.

2. Brushing method: Brush or spray the primer evenly on the surface of the tower. When painting, attention should be paid to avoiding problems such as missed brushing, sagging, and bubbling. Generally, it is necessary to apply 2 to 3 coats, and the interval between each coat depends on the drying time of the primer, usually around 24 hours, to ensure that the primer forms a good sealing layer and enhances adhesion.

Intermediate paint application

1. Mixing intermediate paint: According to the product requirements, fully mix and stir the components of the intermediate paint evenly.

2. Brushing operation: After the primer is completely dry, apply the intermediate paint. Spraying can be used to achieve better coating uniformity and thickness consistency. Brush 2-3 times, with the interval between each coat determined by the drying time of the intermediate coat, usually 24-48 hours, to increase the thickness and anti-corrosion performance of the coating.

Topcoat application

1. Topcoat preparation: Prepare the fiberglass special topcoat according to actual needs and color requirements.

2. Painting process: After the intermediate paint is dry, apply the topcoat. Use spraying or brushing methods to evenly cover the surface of the intermediate paint with the topcoat. Generally, two coats are applied with an interval of about 24 hours between each coat to form a smooth, beautiful, and weather resistant outer coating.

Quality inspection and acceptance

1. Appearance inspection: Observe whether the coating surface is flat and smooth, and whether there are defects such as missed brushing, sagging, blistering, cracks, etc. The coating color should be uniform and consistent, with no obvious color difference.

2. Thickness detection: Use a coating thickness gauge to measure the thickness of the coating. The coating thickness of different parts should meet the design requirements and the deviation should be within the allowable range.

3. Adhesion testing: Use methods such as grid cutting or pulling to test the adhesion between the coating and the tower surface. The adhesion should meet the specified standards to ensure that the coating will not peel off during long-term use.

Post maintenance

1. Regular inspection: After the spray tower is put into use, the condition of the anti-corrosion coating should be checked regularly. If any damage or peeling of the coating is found, it should be repaired in a timely manner.

2. Avoid damage: In daily operation and maintenance, sharp objects should be avoided from scratching the surface of the tower to prevent damage to the anti-corrosion coating.

3. Environmental control: Try to control the environmental conditions of the spray tower as much as possible, avoid long-term exposure to high temperature, high humidity or highly corrosive media, in order to extend the service life of the anti-corrosion coating.