EN
Epoxy Coal Tar Pitch Anticorrosive Coating
It is a two-component room temperature curing coating composed of epoxy resin, coal tar pitch pigments and fillers, additives and solvents and new curing agents.
- Overview
- Description
- Applications
- Specifications
- Construction technics
- Recommended Products
Overview
| Place of Origin: | Jiangxi |
| Brand Name: | Qianlang |
| Model Number: | H52-35 |
| Certification: | ISO900/ISO14001/ISO45001/CE |
| Minimum Order Quantity: | 500kg |
| Price: | USD2.6-2.8 |
| Packaging Details: | / |
| Delivery Time: | 30days |
Description
This coating offers outstanding resistance to acids, alkalis, salts, and water.
It possesses excellent physical and mechanical properties and chemical stability.
The addition of coal tar pitch significantly inhibits bacterial growth in water or soil, as well as erosion by weeds and reed roots.
When used as an exterior anti-corrosion coating, it is reinforced with glass cloth for even better results.
Applications
Suitable for corrosion protection of pipelines and storage tanks (buried parts) in petroleum and chemical systems; underwater structures such as ships and offshore platforms used in marine development projects; sewage treatment systems; and mining machinery and equipment. It has proven effective in applications such as oil and gas pipelines, storage tanks, sewage lines, water injection lines, and municipal water supply and sewage systems.
Specifications
| Order number | Test item | Conventional type | Thick paste type | |
| 1 | Appearance of film | normal | ||
| 2 | Solid content ,% | ≥65 | ||
| 3 | Drying time (23±2℃), h | ≤24 | ||
| 4 | Resistance to shock ,cm | ≥40 | ||
| 5 | Bend test | ≤8 | ≤10 | |
| 5%H2SO4(168h) | No abnormalities | |||
| 6 | 5%NaOH(168h) | No abnormalities | ||
| 7 | 3%NaCl(168h) | No abnormalities | ||
Construction technics
1. Sandblast or shot blast the steel to Sa2.5, with a surface roughness of 30-50µm.
2. When applied to concrete, the surface must be dry (preferably with a moisture content below 5%) and clean (clean the substrate to remove any dust or loose layers).
3. Application methods include brushing, roller coating, and high-pressure airless spraying. Add the paint to an appropriate amount of solvent (use the AB ratio specified on the certification) and stir thoroughly to a viscosity of 40-60µS. Filter through an 80-120 mesh sieve and allow to mature for 10 minutes before application.
4. The surface to be painted must be clean and free of oil, dust, rust, etc.
5. The first coat must be completely dry before the second spraying. Leave at least 24 hours between coats. The total dry film thickness should be approximately 50µm.
The paint dosage is 0.8-1.0kg/m2.
6. After application, the surface can be put into use after curing for 7-10 days at temperatures above 10°C. Curing time should be extended if temperatures are below 10°C. During the curing period, proper protection should be applied to prevent rain damage to the coating.
7.H52-35Epoxy Coal Tar Pitch Anticorrosive Coating generally uses a two-coat primer and two-coat topcoat coating structure.
Table 2: Anti-corrosion layer grade and structure
| Grade | Structure | Paint consumption (㎏/㎡) | Dry Film Thickness(μm) |
| general | Undercoat-topcoat-topcoat-topcoat | 0.8～1.0 | ≥300 |
| Strengthened level | Undercoat-topcoat-topcoat, glass cloth, topcoat-topcoat | 1.0～1.2 | ≥400 |
| Special enhanced level | Undercoat-topcoat-topcoat, glass cloth, topcoat-topcoat glass cloth, topcoat-topcoat | 1.4～1.6 | ≥600 |
| Note: "Topcoat, glass cloth, topcoat" should be applied continuously, or a layer of glass cloth soaked in topcoat can be used instead. | |||
Attention:
1. When diluting, apply small amounts frequently.
2. The substrate temperature must be 3°C above the dew point, and the relative humidity must not exceed 80%. Application should not be made in rainy or snowy conditions.
3. Compatible with our company's various epoxy topcoats, acrylic polyurethanes, aliphatic polyurethanes, and other topcoats.
This product is packaged in 25kg iron drums for the main paint and 2.5kg iron drums for the curing agent.
Storage and transportation:
The effective storage period of the product is 12 months, stored in a cool and ventilated place, storage temperature: 5-30℃. During transportation, prevent cold, sunlight exposure and rain. If the expiration date is exceeded, it can be tested according to the above technical indicators, if the technical requirements are met, it can still be used.
Safety guarding:
The construction site should have good ventilation facilities, and the painter should wear glasses, gloves, masks, etc., to avoid skin contact and inhalation of paint mist. Fire and smoke are strictly prohibited at the construction site.
Statement:
The construction data of this product are all accumulated from laboratory tests and practical experience, for reference only. Users can refer to the actual construction conditions for adjustment. We only guarantee the technical quality of this product, and only give guidance on the actual construction situation, we will not be responsible for your construction. We have the right to modify this manual while improving the product.
