064 - Polyurethane Topcoat
064 - Polyurethane Topcoat
064 - Polyurethane Topcoat
RECOMMENDED USES
TECHNICAL DATA
COLOUR, DRY FILM FINISH, DRY FILM VOLUME SOLIDS (ASTM D2697) SPECIFIC GRAVITY THEORETICAL SPREADING RECOMMENDED DFT (DRY FILM THICKNESS) RECOMMENDED WFT (WET FILM THICKNESS) FLASH POINT FLEXIBILITY WATER RESISTANCE IMPACT RESISTANCE UV RESISTANCE As per National shade card Smooth, Glossy / Semi glossy / Matt 47 2% 1.20 0.05 (of mix) 11.7 M2/LTR 40 Microns/Coat 85 Microns/Coat 25C Excellent Excellent Excellent Excellent
DRYING TIME
Drying time @ 30 (Temperature, humidity, air movement, film thickness and number of coats C all affect the drying time.) 2 3 hours TOUCH DRY 12 hours *DRY TO RECOAT / OVERCOAT 48 hours FULLY CURED *With the same generic type paint.
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PROTECTIVE COATINGS
ADVANTAGES
NATIONAL POLYURETHANE TOPCOAT Two pack system with long pot life, easy to apply, good coverage, excellent adhesion to various surfaces, excellent flexibility, impact resistance, and U.V. resistance, excellent anticorrosive property and salt resistance.
APPLICATION INSTRUCTION
SURFACE PREPARATION For steel surfaces: Oil and grease should be removed by solvent cleaning. Abrasive blasting to min. Sa 2.5 is required for better anchoring. Corroded areas should be power tool cleaned to St3 or blast cleaned to Sa 2.5. Existing system should be dry and free from loose paint, salt, grease and other contaminants prior to over coating. For concrete surfaces: New concrete should be allowed to cure for at least 28 days. Old surface should be free from oil, grease and salt etc. Surface should be dry, clean and sound before painting.
APPLICATION DATA
APPLICATION METHOD CLEANING/THINNING THINNER (VOLUME) CONV. SPRAY REQUIREMENTS AIRLESS SPRAY REQUIREMENTS NOZZLE SIZE MIXING RATIO (BY VOLUME) POT LIFE @ 30c (100 ml) Brush, Roller or Spray National Polyurethane Thinner (thinner should only be added after mixing the components)` 5-15% depending on method of applications Pressure: 50 psi Pressure : 2100 psi 0.018 0.020 for airless spray Base : Hardener 4 : 1 (Mix properly, keep 10-15 minutes before use) 8 hours (Reduced at higher temperatures) (Note: Material may gel at elevated temperatures)
SYSTEM
No. of coats x DFT (micron) For steel and metal surfaces: RECOMMENDED SYSTEM To be applied on prepared surface. National Guard Zinc Phosphate Epoxy Primer (OR) National Guard Epoxy Red Oxide Primer National Polyurethane Topcoat : 1 x 50 : 1 x 50 : 2 x 40
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PROTECTIVE COATINGS
ADDITIONAL DATA
SHELF LIFE @ 30C 18 months, in original sealed container, with proper storage conditions.
NOTE: We warranty only the quality of our product and this data sheet is based on results obtained from experience and tests. We reserve the right to change data without prior notice. For surface preparation, safety details refer specifier and safety data.
This data sheet supersedes all previous issued. Issued: 0608
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