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SB IV ADHESIVE STORAGE AND HANDLING: 2. Roof Deck and Parapet • Protect SB IV from freezing. a. Using a 3/8-inch (medium)nap solvent-resistant • SB IV must not be shipped in temperatures less roller,apply SB IV evenly at a coverage rate of than 40° F(5° C). 120 square feet per gallon, per surface,to BOTH the backside of the membrane and to the • Store SB IV between 60° F(16°C)and 80° F(27° substrate.This gives a net coverage rate of 60 C),out of direct sunlight,for maximum shelf life. square feet per gallon. The coverage rate will Shelf life is one year in an unopened pail,from vary depending upon the porosity of the date of manufacture printed on the pail,when substrate. following these recommended storage procedures. b. Allow SB IV to dry(approximately 5—10 PRECAUTIONS: minutes)until it does not stick or form strings when a dry finger is pushed into it and removed. • Read Safety Data Sheets(SDS)prior to using. Dry time will vary according to weather •Wear proper personal protective equipment, such conditions. as gloves and eye protection, per the SDS. c. Open time, prior to adhering the membrane to • Combustible. Do not expose to heat,flame or the substrate, may extend up to 60 minutes sparks. Do not smoke while applying. depending on weather conditions. However, the • Use only in well ventilated areas and avoid installer is urged to apply the membrane to the breathing vapors. substrate as soon as the SB IV is ready. • Keep pail closed when not in use. d. Roll the SB IV-coated membrane onto the •When transferring SB IV between pails, ensure that SB IV-coated substrate slowly and evenly to both pails are grounded. avoid trapping air and to minimize wrinkles. •Treat empty pails with caution since they may e. Apply pressure, by means of a heavy roller or contain flammable vapors. push broom,to ensure proper bonding. f. Refer to the Duro-Last Adhered Systems INSTALLATION: Y specification for guidelines regarding membrane 1. General installation. • Do not exceed Open Time of 1 hour. •Apply to surfaces which are clean, smooth, dry and free of oil and grease. • Only apply SB IV when the ambient temperature is at least 40°F(5°C)and rising. Adhesive must be stored between 60°F(15°C) and 80°F(26°C)for 24 hours prior to installation. • Stir SB IV vigorously, by hand,to achieve homogeneous mixture prior to application. •Thinning the SB IV is not allowed. • SB IV may not be used with fleece membranes. • Do not apply SB IV where hot-air welding will be performed. • Do not allow SB IV to contact expanded polystyrene(EPS)or extruded polystyrene (XPS). Damage to EPS and XPS will occur. Squeegees must not be used when EPS or XPS are within the roofing system. 12I21 www.duro-last.com 800 248-0.28Q Duro-Last,Duro-Tuff,Duro-Guard and'World's Best Roof'are registered trademarks owned by Duro-Last,Inc. Created:01/01/2009 Revised:04/07/2010,05/13/2015,07/20/2022