Apply 702 K-Prep primer over Kynar® coated metal roof surfaces that have been weathered at least four years in preparation for the application of acrylic roof coatings.

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Weight per Gallon: 9.8 lbs.
Solids by Weight: 47%, Nominal
Solids by Volume: 38%, Nominal
Color: Light Green
Cure Time: 2-4 hours @ 77°F and 50% Relative Humidity
Application Temp.: 40°F to 120°F
Service Temp (Cured Film): -15°F to 180°F

VOC Content: <50 g/L MAX

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SURFACE PREPARATION:
Weathered Kynar® coated metal roofing surfaces accumulate dirt over time and must be cleaned prior to coating with 702 K-Prep. It is particularly important to effectively clean ponded water areas where greater accumulations of dirt can occur. For optimal adhesion and water resistance, water alone is insufficient to clean weathered Kynar® coating properly. Suitable liquid cleaners such as 799 Wash-N-Prep Roof Cleaner can be spray applied over the entire surface followed by a thorough power washing. Power wash roof surfaces using a pressure of 2500 to 3500 psi with a wide fan tip. All residual cleaning agents must be removed; otherwise, they will interfere in the adhesion of 702 K-Prep. Recommended application temperature is 40°F to 120°F.

APPLICATION:
Mix lightly prior to application of the primer. 702 K-Prep may be applied by brush, spray equipment or roller.

ROLLER / BRUSH APPLICATION:
Apply with a 3/8" nap roller or soft roof brush.

SPRAY APPLICATION:
Utilize a standard paint spray pump or airless spray pump. Equipment manufacturer should be consulted for more complete information. Spray application should be done with a 50% over-spray pattern.

COVERAGE RATE:
Apply 702 K-Prep over the surface at the rate of 0.5 gallon per 100 sq. ft. (8 wet mils). Allow 702 K-Prep to dry 2 - 4 hours before applying 404 Corrosion Proof Base Coat or selected finish coating. All applied primer should be coated over the same day for the best inter-coat adhesion. Coverage will vary depending on the surface to be coated.

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Do not apply when rain is imminent. Coating must be dried before exposure to water. Store in a heated room and keep container covered when not in use. Do not thin. Keep out of reach of children. Avoid prolonged contact with skin. Dispose of in an environmentally safe manner. Cover air intakes during application and while drying.
COLD-PROCESS SYSTEMS AND COATING, EITHER EMULSION OR SOLVENT BASED, SHOULD ONLY BE INSTALLED ON DECKS WITH POSITIVE DRAINAGE. PER NRCA, (NATIONAL ROOFING CONTRACTORS ASSOCIATION, “THE CRI TERIA FOR JUDGING PROPER SLOPE FOR DRAINAGE IS THAT THERE BE NO EVIDENCE OF STANDING WATER ON THE DECK 48 HOURS AFTER IT STOPS RAINING.”

‍CARE OF TOOLS:
While material is still wet, tools may be cleaned with water. Dry coating can be cleaned with Karna-Klean or xylene or similar solvent, taking the necessary precautions when handling flammable materials.