*multi-pack purchase*

This is for 12 of the item shown, at $3.49 each.

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Item #:
Model #:
Container Size:
10 oz
Coverage Area:
30.6' at 1/4" Bead, 13.6' at 3/8" Bead
Synthetic Rubber & Asphalt
Package Quantity:

*In-store price may vary from online price.

California - Prop 65 Warning

This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. This product contains a chemical known in the State of California to cause cancer.


Brand OSI
Manufacturer Part Number 1938618
Manufacturer Description 10OZ RF/FLASHING SEALANT
Country of Origin Code United States of America
Container Size 10 oz
Color Black
Material Synthetic Rubber & Asphalt
Coverage Area 30.6' at 1/4" Bead, 13.6' at 3/8" Bead
Package Quantity 1
UPC 00028756959717

More Information


OSI RF140 Roof & Flashing 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 RF140 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 RF140 can be applied at temperatures between 20 F (-6.67 C) and 90 F (32 C) without difficulty in extrusion. Also, it resists the cracking which is common to most types of plastic roof cements.

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