OSI 6974406

OSI® RF-140™ Roof & Flash Sealant is manufactured using a special synthetic rubber and select cuts of asphalts. By combining these two materials, the natural tendency of hardening and softening generally associated with asphalt is modified considerably with the rubber. This allows OSI® RF-140™ to cure into a tough, rubbery stage which will expand and contract more readily during temperature variations. In addition, the adhesion characteristics of the asphalt are augmented with a stable tackifying resin which will provides a lasting and flexible bond to most surfaces. Unlike other roofing cements, OSI® RF-140™ can be applied at temperatures between 20degF (-6.67degC) and 90degF (32degC) without difficulty in extrusion. Also, it resists the cracking which is common to most types of plastic roof cements.

OSI Roof and Flash Sealant, 10.5 oz Net Content, Cartridge Container, Resin, Synthetic Rubber Base, Paste Form, Black, Odor/Scent: Solvent, Composition: Limestone, Kaolin, Methyl Acetate, Asphalt, Pentaerythritol Ester of Rosin, Stoddard Solvent, <0.1% Benzene, Distillates (Petroleum), Hydro Treated Heavy Naphthenic, Acetone, Xylenes, Carbon Black, Titanium Dioxide, Ethylbenzene Quartz (SiO2), 24 to 48 hr Curing Time, 20 to 90 deg F, 1.302 Specific Gravity, 235 g/L VOC, Application Method: Caulking Gun

• Specification Sheet https://assets.unilogcorp.com/571/ITEM/DOC/OSI_827579_Specification_Sheet.pdf