KARNAK 501 Elasto-Brite is a co-polymer elastomeric, 100% acrylic emulsion coating. 501 Elasto-Brite provides excellent protection, appearance, mildew resistance, color stability, weatherability and flexibility.
Cool Roof Rating Council (CRRC)
1. Solar Reflectance: Initial 0.86 3 year 0.77
2. Thermal Emittance: Initial 0.91 3 year 0.90
3. SRI: Initial 109 3 year 96
- ASTM D-6083
- 1.5-1.5 Gallons per 100sf**
This is intended as a general guideline only, coverage can vary based on many factors.
KARNAK 501 Elasto-Brite is designed to be applied directly over built-up roof surfaces that have aged a minimum of 90 days, SBS and APP granular modified membranes and smooth surface APP membranes that have weathered a minimum of 30 days as well as metal roofs. Also for use on above grade vertical surfaces such as concrete, concrete block, brick, stucco, metal and wood. May also be used for application over applicable KARNAK base coats 405 Bond-N-Shield, 406 Tru-Grip, 404 Corrosion Proof Base and 407 EPDM & SPF as a base coat for EPDM. Meets ASTM D-6083.
Weight Per Gallon: 11.8 lbs.
Solids By Weight: 65%
Solids by Volume: 52%
Color: White, Gray
Hardness Shore A: 70
Tensile Strength: 230 PSI
Permeability: 10 Perms
Performance Service Temperature Range: -15°F to 180°F
VOC: 41 g/L
Preparation & Application
White and gray are standard colors. Tan, Patina Green and Terra Cotta Red are available in quantities of 210 gallons minimum.
Surfaces to be coated should be dry, clean, free of dirt, dust, grease, oil and loose paint. Power wash surfaces with TSP substitute and water. Wash roof surfaces with a minimum of 2000 psi. taking all necessary precautions to avoid damage to the roof system. Patch and repair cracks or holes with appropriate sealants or caulking materials. All wet insulation should be removed and replaced with like materials. New BUR roof surfaces must age a minimum of 90 days before coating. Newly installed cold-process, hot-applied and torched-applied modified bitumen membranes should age 30 days before coating. Allow fresh masonry to cure a minimum of 30 days before application. 501 Elasto-Brite or subsequent base coats should be dry prior to application of 501 Elasto-Brite.
Mix lightly prior to application of the coating. 501 Elasto-Brite may be applied by brush, spray equipment or roller.
BRUSH / ROLLER APPLICATION:
Brush / roller application should be done perpendicular to the first coat/base coat for proper protection.
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.
Apply 501 Elasto-Brite at the rate of 1.5 gallons per 100 sq. ft. per coat in a two coat application for a total coverage rate of 3 gallons per 100 sq.ft. This will achieve a dry mil thickness of 20 to 24 mils. Coverage will vary depending on the surface to be coated. Allow first coat to dry 4 to 12 hours before application of the second coat. Apply when temperatures are 40ºF and rising but not over 100ºF. Do not apply when rain is expected during or within 24 hours after application. Read the MSDS before using. For questions regarding repairs, surface preparation or request for an MSDS, please contact KARNAK Technical Services at 800-526-4236.
Caution/Care of Tools
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 CRITERIA 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.
Recognized by professional roofing contractors as the best quality product in the market.