ALDOCOAT 397 is a high yield, low VOC, one-part silicone elastomeric coating specifically designed for use in roofing applications as a protective coating over a variety of roofing substrates. Once cured this liquid applied silicone coating provides a durable, seamless, flexible, waterproof membrane that resists lateral movement, shear and will allow for normal expansion and contraction. Mil for mil, ALDOCOAT 397 provides greater UV protection than similar silicone coatings and offers increased resistance to moisture penetration. ALDOCOAT 397 provides excellent long term protection through exceptional weatherability properties.
ALDOCOAT 397 was specifically developed as a protective coating for a wide variety of low slope roofing substrates. With excellent adhesion and durability, ALDOCOAT 397 is proven to provide excellent UV protection and long term durability for spray polyurethane foam. It is also recommended for protecting vertical walls, masonry, concrete, single ply membranes and metal surfaces.
TYPICAL PHYSICAL PROPERTIES
TOTAL SOLIDS: 96% ± 2 by volume ASTM D2697
WEIGHT PER GALLON: 10.7 lbs per gallon
FLASH POINT: >290° F
CLEAN UP SOLVENT: ALDOTHINNER
SHELF LIFE: 6 months @ 35°- 75° F
VISCOSITY: 4800-9000 cPs
ELONGATION: 249% ± 50
HARDNESS: 50 ± 5 Shore A
TENSILE STRENGTH: 325 psi ± 50
PERMEABILITY: 4.2 perms
SERVICE TEMPERATURE: -50º TO 200º F
THINNER: Not Recommended
SOLAR REFLECTANCE: 87%
THERMAL EMITTANCE: 89%
CURE TIMES: 2-8 Hours
TACK FREE: 1 Hour
SKINOVER: 30 Minutes
VOC: <10 grams per liter
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THE SPFA 2019 NATIONAL ROAD SHOW The Spray Polyurethane Foam Alliance (SPFA) has recently announced dates and locations for their 2019 Road Show. The goal for this roadshow is to promote safety and industry standards by issuing their Professional Certification Program...read more
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