RAL1011 Brown beige Polyurethane powder coating for Domestic Appliances
Low temperature cure is much easier to develop in a polyester than a polyurethane powder coating. A couple caveats need to be noted. HAA polyesters are more difficult to catalyze than TGIC based polyesters. HAA polyesters can cure as low as 325°F whereas TGIC polyesters can be formulated to cure at temperatures as low as 250°F. Polyurethanes bottom-out around 300°F.
CHARACTERISTICS |
1. High gloss with excellent appearance.
2. Excellent resistance to weathering with gloss retention.
3. Excellent resistance to oils, acids, alkalis and solvents.
4. Excellent hardness, adhesion and abrasion resistance. |
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GLOSS |
Above 90% |
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COLOR |
Desired colors |
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WEIGHT |
Above 1.0 kg/L (Mixer) |
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VISCOSITY (25 °C) |
60– 85 KU (Mixer)(25 °C) |
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DRYING TIME (25 °C) |
Set-to-touch 1 hr. Dry hard 6 hrs. (25 °C). |
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OPTIMUM FILM THICKNESS |
Wet 95μ(microns)Dry 30μ(microns) |
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MIXER RATIO |
Base: Hardener = 2: 1 (by volume.) |
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NON-VOLATILE CONTENT |
Above 55% |
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POT LIFE |
4 hrs. (Mixture , 25 °C) |
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THINNER |
PU Thinner |
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THINNING RATE |
10~25 % |
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STORAGE SHELF LIFE |
Minimum 1 year under normal storage conditions. |
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APPLICATION METHOD |
Spray, Brush. |
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NOTE |
1. Mix base and hardener according to the mixing ratio and stir thoroughly.
2. Avoid applying the paint in rain or humid weather, particularly, awet surface must be thoroughly dried.
3. All equipments must be cleaned immediately after use.
5. When overcoating interval is exceeded, paint surface must be roughened to insure adhesion.
7. Strictly controlling application, not be exceed 60μ pre coat, to avoid bubbles for mation. |