Customization: | Available |
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Main Raw Material: | Polyurethane |
Appearance: | Solvent |
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Design Purpose: Primarily suitable for decorative coatings of indoor steel components, steel products, and instruments.
Product Characteristics: Uniform and aesthetically pleasing colors, comfortable feel, strong adhesion, water and oil resistance, excellent physical and chemical properties.
Product Composition: Acrylic resin, polyurethane, pigments, organic solvents, and additives.
Product Appearance: Various conventional colors, but white is not suitable.
Item | Specification | Test Methods |
1. State in container | Uniform, easy to stir | GB3186-82 (89) |
2. Viscosity (coating-4), S |
|
GB/T1723-93 |
3. Fineness, μm | ≤35 | GB6753.1-86 |
4. Non-volatile content, % | ≥60 | GB/T6751 |
5. Applicability | No abnormalities | GB1757-79 (89) |
6. Surface drying time, h | 1 | GB/T1728 Method B |
7. Full drying time, h | 24 | GB/T1728 Method B |
8. Baking time, m | 60 (80ºC) | GB9273-88 |
9. Coating color and appearance | Meets standard sample, coating smooth, uniform color | GB9761-88 |
10. Scratch test | Grade 2 pass | GB/T9286-1998 |
11.Pencil hardness | HB grade pass | GB/T6739-1996 |
12.Water resistance | No significant changes after 240h immersion | GB/T1733-93 Method A |
13.Oil resistance | No significant changes after 240h immersion | GB9274-88 Method A |
Construction Conditions:
Surface treatment:
1.Steel should be sandblasted to Sa2.5 or manually derusted to St3, with surface roughness of 40-70μm, ensuring the substrate surface is clean and dry.
2.After meeting the rust removal standards, primer application should be completed within 4 hours. Surfaces not coated in time should be reprocessed.
3.Prior to applying the topcoat, ensure the primer surface is clean and dry.
Temperature and Humidity:
1.Substrate temperature should be 0 to 50°C, and at least 3°C above the dew point. Relative humidity should not exceed 85%.
Construction parameter:
Mixing Ratio: As provided by supplier
Application Method: Spraying
Usability Period: 4 hours (23°C)
Thinner: Polyurethane thinner
Safety Precautions: