731 POLYURETHANE COATING, FLAT BLACK (N-TYPE)

POLYURETHANE COATING, FLAT BLACK (N-TYPE)

PRODUCT NUMBER

731

TYPE

A two-pack, polyurethane coating based on acrylic resin, polyol resin and isocyanate hardener with special black pigment and matting agent.

USES

Used for high class wood products, sewing machine bed, metal products and FRP.

CHARACTERISTICS

1. Smooth matt surface without glare.

2. Excellent weather resistance with good color retention.

3. Excellent resistance to water, oils and chemicals.

4. Excellent adhesion, hardness and abrasion resistance.

FINISH

Flat

COLOR

Black

HIDING POWER

Above 16.7 m2/L (mixture)

MASS DENSITY

Above 0.9 Kg/L (mixture)

VISCOSITY

60~80 KU (mixture, 25℃)

DRYING TIME

Set-to-touch 1 hr. Dry hard 6 hrs. (25℃).

OPTIMUM FILM THICKNESS

Wet 60 microns Dry 30 microns

THEORETICAL COVERAGE

63.2 m2/Gal 16.7 m2/L 17.9 m2/Kg

OVERCOATING INTERVALS

Min. 4 hrs. Max. 6 months

MIXING RATIO

Base : hardener = 84 : 16 (by wt.)

NON-VOLATILE CONTENTS

Above 50% (mixture)

POT LIFE 4 hrs. (mixture, 25℃ )
HEAT RESISTANCE Continuous 93℃ Intermittent 121

THINNER

No.736 Polyurethane Thinner

THINNING RATE

10~25% (cleaning tools excluded)

PRECEDING COATS

No.711 Polyurethane Sanding

No.733 Polyurethane Zinc Chromate Primer (for metal)

Epoxy Primers Series

STORAGE SHELF LIFE

Minimum 1 year under normal storage conditions.

APPLICATION METHOD

1.Spray 2.Brush/Roller (only for hand-type)

NOTE

1. Mix base and hardener according to the mixing ratio and stir thoroughly.

2. Adhered moisture, grease, dust on substrate must be removed thoroughly.

3. Please use special thinner for dilution to avoid causing bubbles or pinholes.

4. Hardener cover must be tightly closed to avoid reaction with moisture in air to form bubbles and gelation.

5. Mixture of base and hardener must be used up within pot life.

6. Strictly controlling application, not to exceed 50 microns per coat, to avoid bubbles formation.

7. All equipments must be cleaned immediately after use.

8. The lacquer sanding is not suitable as a primer for this paint.

9. If change application method from airless spray to brush or roller, please advice our sales representative.

10.Avoid applying paint in rainy or the moisture above 85% RH, otherwise the adhesion will be affected by moisture of substrate and the paint film will be loss its gloss.