OSI RF-140 Black Magic Roof Sealant 10.2 fl oz (301ml) Cartridge (Sold as Each)
- Flexible and non-hardening
- Can be applied in all weather conditions
- Bonds well to wet or dry surfaces
- UV Resistant, will not deteriorate from sunlight over time
- Sold as Each
OSI® RF-140 Black Magic Roofing & Flashing Sealant OSI® RF-140 Black Magic Roofing & Flashing Sealant has a unique rubber plus asphalt formula to permit low temperatures between 20°F and 90°F without difficulty in extrusion. RF-140 remains flexible; resists cracking as it expands and contracts with temperature variations.