Composition and performance:
Three-component or two-component thick paste heavy anti-corrosion coating made of modified epoxy resin, imported additives, active diluent (component A), curing agent (component B), high-quality anti-rust pigment, waterproof pigment, wear-resistant filler, coagulant (component C)
The coating has excellent adhesion, wear resistance, seawater resistance, chemical corrosion resistance, and good construction performance. The dry film thickness can reach 800-1000μm after scraping. It can be used as a matching primer and a primer-top paint. The theoretical dosage for scraping 1000μm is 1.8kg
Application:
Suitable for long-term corrosion protection in harsh corrosive environments, suitable for steel structures and concrete structures. Such as: offshore platforms, steel pile docks, concrete bridge columns, underground or underwater pipelines, underground garages, basement floors, chemical equipment, etc.
Technical indicators:
Project | Performance Indicators | |
Color | Iron red, dark gray | |
Status in the container | Slurry, no lumps after stirring and mixing, in a uniform state | |
Construction | Scraping and coating without any trouble | |
Coating appearance | Flat and smooth | |
luster(60°)/°,≥ | 60 | |
Fineness/μm,≤ | 50 | |
Drying time/h,≤ | Touch Dry | 0.5 24 |
Practical | ||
Non-volatile matter/%,≥ | 96 | |
hardness/H,≥ | 4 | |
Wear resistance/(1000g/500r)g,≤ | 0.045 | |
density,g/ cm3 | 1.7-1.8 | |
Adhesion (pull-off method)/Mpa,≥ | 8 | |
Salt water resistance (3% NaCl solution, 720h) | No abnormality | |
Water resistance (1200h) | No bubbling, no shedding, slight discoloration allowed | |
Heat resistance (90±2℃, 720h) | No bubbles, no wrinkles | |
Alkali resistance (5% NaOH, 120h) | No abnormality | |
Acid resistance (5% H2SO4, 120h) | No abnormality | |
Coating temperature change resistance (5 cycles) | No abnormality | |
Salt spray resistance (4000h) | No bubbles, no shedding |
Construction method:
1. Surface treatment: The coating surface must be thoroughly cleaned before coating, and it is required to be rust-free, oil-free, water-free and dust-free. Manual rust removal must reach St3 level, and sandblasting rust removal must reach Sa2.5 level.
2. Coating environment requirements: Coating work should be carried out under climatic conditions with an air temperature above 5°C and a relative humidity below 85%. The surface temperature of the steel should be 3°C higher than the dew point temperature.
3. Coating process: Before coating, the components of the coating should be mixed and fully stirred according to the weight ratio required by the formula. When mixing, first mix components A and B evenly, and then add component C. The prepared coating should be used up as soon as possible. To ensure the adhesion of the coating, the surface should be scraped with diluted paint after it is qualified. The reference ratio of dilution is A: B: C: diluent = 4: 1: 9: (0.5~1). The thickness of the paint film should be strictly controlled to ensure that more than 90% of the measured points reach the specified thickness. It is allowed to repair the damaged or defective parts of the coating. Use sandpaper to roughen the coating within 300mm around the repaired part, and scrape the coating to make it level with the surrounding coating.
Notes:
1. The paint should be placed in a low temperature, ventilated and dry place; away from fire and heat sources; the shelf life is one year in a cool and dry place.
2. Before the coating is completely dry, it should be avoided from being polluted by rain or other liquids, and no one should step on it. The coated metal surface should not be constructed under direct sunlight in summer.
3. The above information is written based on the actual testing and use experience of our company's technicians, and can be used as a construction guide. However, due to the difference between the coating environment and the supporting plan, it is recommended that users conduct experiments and tests in advance according to actual needs and uses before confirming use. Our company only guarantees the quality and stability of this product itself.
If you have any questions, please contact us promptly and we will answer your questions as soon as possible.