VOC Compliant Phenolic Coating
VOC compliant phenolic coating specially formulated to cure as an air drying system. RECOMMENDED USAGE: HJ-500H Series air dry phenolic coatings are formulated to permit application by brush, spray, or roller. Some of their outstanding properties are excellent durability, good adhesion, good film building characteristics and flexibility. All are self priming to steel. When thoroughly aged, they produce hard corrosion resistant films. Recommended as a heavy duty maintenance coating for exposures to splash, spillage and fumes. HJ-353 is a primer/finish combination specially formulated for salt water fumes services. Successful applications include: Fans, duct, fume hoods, marine finishes, swimming pools, steel plants, wastewater treatment plants, textile industry, chemical storage areas, battery storage areas and ventilating systems. When finished product is going to be exposed to UV rays, one topcoat of UC-5500 is recommended. PHYSICAL DATA: (depends on color) Solids: 60 - 70 % by volume 70 - 75 % by weight Approximately Shipping Weights: HJ-500H: 10 lbs. per 1 gallon pail 50 lbs. per 5 gallon pail HJ-111: 8.4 lbs. per 1 gallon pail 35.5 lbs. per 5 gallon pail
GENAL CHEMICAL RESISTANCE: This coating has excellent resistance to atmospheres that are acidic, swimming pool areas and salt air. The following is a brief listing of the chemical resistance:
EXPOSURE SPLASH & SPILLAGE FUMES Acids (dilute) Good Excellent Alkalis (dilute) Good Good Solvents Fair Good Inorganic Salts Good Excellent Water Good Excellent COVAGE: Theoretical coverage is 1040 sq. ft. per gallon per mil. This equates to 166 sq. ft. per gallon at 5 mils dry film thickness with a % loss factor. RECOMMENDED DRY FILM THICKNESS: 4 to 6 mils (100-150 microns). This can be accomplished in a 2 to 3 coat application at 75°F (24°C). An additional coat may be necessary with cooler application temperatures. Approximately 5 wet mils will achieve 3 dry mils. VOC INFORMATION: (varies with color) Range = 2.4 lbs. - 3.4 lbs. per gallon as applied ABRASION RESISTANCE: 1 mg weight loss per 100 cycles cs-17 wheel with 1000 gram weight. TEMPATURE LIMITATION: HJ-500H accepts dry heat temperatures up to 0°F (93°C) SHELF LIFE 2 years from the date of purchase stored at 70°F (21°C) STORAGE CONDITIONS Keep temperatures around 70°F whenever possible to maximize the shelf life.
SURFACE PREPARATION: Remove all oil, grease from the surface with an appropriate solvent, such as HJ-0362 or HJ-111
STEEL: (NON-IMMSION) A commercial blast is acceptable in accordance with NACE #3 or SSPC-SP-6 specifications. Surface profile or anchor pattern shall be -25% of the recommended dry film thickness.
Surface profile or anchor pattern should be - 25% of the recommended dry film thickness.
CONCRETE: Remove protrusions by sanding or grinding. Concrete must be cured at 70°F (21°C) and 50% relative humidity for 28 days.
(NON-IMMSION) Surfaces must be acid etched or abrasive blasted to remove laitance.
PRIM: While HJ-500H Series are self-priming on steel, four primers are available.
On concrete or porous surfaces, two (2) coats of primer with two (2) coats of finish are recommended. The first coat shall be thinned one (1) part primer to one (1) part HJ-333 solvent.
THINN: Recommend thinner is HJ-111 for spray applications and HJ-333 for brush or roller applications
THINNING: The amount of thinner required is dependent upon temperature, ventilation, humidity; spray equipment used and desired film thickness.
SPRAY: HJ-500H series coatings are normally diluted for spraying. It is recommended that 10% thinning with HJ-111 to achieve an application viscosity of 25 to 35 seconds on a Zahn #2.
BRUSH OR ROLL: HJ-500H series coatings may be applied without dilution. If desired, a small amount of HJ-333 solvent may be used.
1. Do not apply if temperature is less than 5°F (2°C) above dewpoint or if temperature is below 45°F (7°C).
2. All spray equipment shall be thoroughly cleaned and the hoses in particular shall be free of old paint film and other contaminants.
3. Use standard production type spray guns:
May also be used with airless spray equipment.
4. Air supply shall be uncontaminated. Adjust air pressure to approx. 50 lbs. at the gun and provide 15-% pot pressure. Adjust spray gun by first opening liquid valve and then adjust air valve to give approx. an 8"-12" fan, holding gun perpendicular to the surface at a distance of 12".
5. Apply a mist bonding pass.
6. Allow to flash off for several minutes, but not long enough to allow film to completely dry.
7. Apply 3-4 criss-cross multi-passes maintaining a wet appearing film approx. 5 mils wet film thickness equals approx. 3 mils dry film thickness.
8. Air dry with ventilation.
CURING SCHEDULE HJ-500H @ 70°F (21°C)
Recoat: 6 - 8 hours per coat
Dry to handle: 24 hours
Full Cure: 7 to 14 days
FORCE CURE: Let part flash off solvent for at least 15 minutes then place in cold oven and bring the oven temperature up to 250°F (121°C). Remove part as soon as you reach temperature. The coating will be soft until it cools.
CLEAN UP: Use HJ-111 solvent.
STORAGE: Coating should not be stored longer than 24 months. Storage at 80°F (27°C) may shorten shelf life.