751 POLYURETHANE ELASTIC COATING (N-TYPE)

PRODUCT NUMBER

751.

TYPE

A two-pack, polyurethane elastic coating based on acrylic resin and non-yellowing isocyanate hardener.

USES

Used for ships, metal or steel structures and cement structures, such as bridge, wall, roof etc.

CHARACTERISTICS

1. High gloss with smooth appearance.

2. Excellent weather resistance with gloss and color retention.

3. Excellent resistance to acids, alkalis, oils and salts.

4. Excellent adhesion, film with soft, elasticity and ductility (elongation 150% above).

GLOSS

Above 90%

COLOR

White or desired colors

HIDING POWER

Above 10 m²//L (mixture)

MASS DENSITY

Above 1.1 Kg/L (mixture)

VISCOSITY

50~70 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 14.8 m²/Kg

OVERCOATING INTERVALS

Min. 4 hrs. Max. 6 months

MIXING RATIO

Base : hardener = 80 : 20 (by wt.)

NON-VOLATILE CONTENTS

Above 60% (mixture)

POT LIFE

4 hrs. (mixture, 25℃)

THINNER

No.736 Polyurethane Thinner

THINNING RATE

10~25% (cleaning tools excluded)

PRECEDING COATS

No.1080 Solventless Epoxy Elastomer Coating, Polyurethane or Epoxy Primers

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

9. 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.