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POLYURETHANE ELASTOMER COATING (N TYPE) |
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NO. |
No.751 |
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TYPE |
A two-pack, polyurethane finish based on Acrylic Polyol resin and non-yellowing Isoyanate Hardener with weather resistant pigments. |
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USES |
Topcoat for the structure of marine, metal and steel, etc. and the concrete structure of bridges, wall and roof, etc. |
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CHARACTERISTICS |
1. High gloss with excellent appearance. 2. Excellent resistance to weathering with gloss retention. 3. Excellent resistance to moisture, oil, acids, alkalis and solvents. 4. Excellent adhesion and tough film with elasticity and elongation (above 150%). 5. Excellent abrasive resistance. not permeating vapor and moisture. |
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FINISH |
Above 90% |
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COLOR |
White or Designed colors |
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HILDING POWER |
Above 10 ㎡/L |
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WEIGHT |
Above 0.9Kg./L（Mixture） |
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VISCOSITY(25℃) |
50～70 KU(Mixture) |
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DRYING TIME(25℃) |
Set-to-touch 1 Hr. Dry hard 6 Hrs. |
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OPTIMUM FILM THICKNESS |
Wet 95μ（microns） Dry 30μ（microns） |
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THEORETICAL COVERAGE |
40.0 ㎡/Gal 10.5 ㎡/L 11.6 ㎡/kg |
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OVERCOATING INTERVALS(25℃) |
Min. 15 Hrs. Max. 5 Days. |
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MIXING RATIO |
Base : Hardener = 80 : 20 ( by wt.) |
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NON-VOLATILES CONTENT |
Above 50％（Mixture） |
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POT LIFE（25℃） |
4 Hrs（Mixture） |
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THINNER |
NO. 736 Thinner |
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THINNING RATE |
10～25％（Cleaning tools excluded） |
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PRECEDING COATING |
Polyurethane or Epoxy Primer |
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APPLICATION METHOD |
Brush or Spray |
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STORAGE SHELF LIFE |
Minimum 1 year under normal storage conditions. |
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NOTE |
1. Mix base and hardener according to the mixing ratio and stir thoroughly. 2. Adhered moisture, grease, and dirt on substrate must be cleaned thoroughly. 3. Use specified thinner to avoid formation of bubble and pinhole. 4.Hardener must be tightly closed to avoid reaction with moisture in air to form bubbles and gelation. 5.The mixture of base and hardener must be used up within the limit of pot life. 6. Strictly controlling application, not to exceed 50 microns per coat, to avoid bubbles formation. 7. All equipment must be cleaned immediately after use. |
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