Karnak 501 Elasto-Brite Sealant
501 Elasto-Brite
501 ELASTO-BRITE
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.
INFORMATION
PRODUCT TYPE
Sealant
SOLIDS BY VOLUME
53%, Nomina
CATEGORIES
Finish Coats
HARDNESS, SHORE A
70
AVAILABLE SIZES
- 275 gallon totes
- 55 gallon drums
- 5 gallon pails
- 1 gallon cans
USES
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, aged TPO and PVC (min. four years old) 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 base coats 405 Bond-N-Shield, 406 Tru-Grip, 404 Corrosion Proof Base and 407 EPDM & SPF. Meets ASTM D- 6083 Type I
ELONGATION
- 237%, Nominal
- ASTM D 2370
TEAR RESISTANCE
- 82 lbs. force/in.
- ASTM D 624
SPRAY APPLICATION
Utilize a heavy-duty professional airless spray pump. Equipment manufacturer should be consulted for more complete information. Spray application should be done with a 50% over-spray pattern.
ADVANTAGES
-Premium, 100% acrylic polymer, elastomeric coating -Superior reflectivity and elongation for the protection of the underlying roof surface
SERVICE TEMP
-15°F to 180°F
SOLAR REFLECTANCE
- 0.86 Initial
- 0.77 3-Yr. Aged
APPLICATION TEMP
40°F to 120°F
THERMAL EMITTANCE
- 0.91 Initial
- 0.90 3-Yr. Aged
APPLICATION
Recommended use is for application over one of KARNAK’s 400 series substrate specific base coats. Mix lightly prior to application of the coating. 501 Elasto-Brite may be applied by brush, spray equipment or roller. Allow first coat to dry 8 to 12 hours before application of the second coat. Apply when temperatures are 40ºF and rising but not over 120ºF. Do not apply when rain is expected during or within 24 hours after application. For applications in higher temperatures (above 90 °F) KARNAK recommends application in multiple thin coats to prevent trapped moisture problems. Commencement of work by the contractor implies his approval of the deck surface.
SURFACE PREPARATIONS
Surfaces to be coated should be dry, clean, free of dirt, dust, grease, oil and loose paint. Recommended application temperature is 40°F to 120°F. 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
APPLICATIONS
CAUTION
Do not apply when rain is imminent. Protect from freezing. 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. For exterior use only.
ROLLER / BRUSH APPLICATION
Apply with a 3/4" – 1-1/4” nap roller or soft roof brush perpendicular to the first coat / base coat for proper protection.
PACKAGING
Available in 5-gallon pails, 55-gallon drums, and 275-gallon totes If further information is needed, contact KARNAK Technical services at 800-526-4236.
COVERAGE RATE
Apply in a single coat over applicable 400 series base coat at the rate of 1.5 gallons per 100 sq. ft. (24 wet mils) or apply direct to substrate in a two coat application at the rate of 1.5 gallons per 100 sq. ft. per coat (Total 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.
COLORS
White, Gray, Patina Green and Forrest Green are standard colors. Other colors are available in minimum quantities of 300 gallons. See “Elastomeric Coating Color Chart” for other available colors.