About Sealant Flexibility
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Non-Hardening Caulk
Also known as thumb-grade caulk, this forms a non-hardening, moisture-resistant seal that remains pliable.
Butyl rubber has a sticky, gummy consistency.
3M Butyl Rubber Strip
Black | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mfr. Model No. | Wd. | Thick. | Lg., ft. | Tensile Strength  | Hardness | Temp. Range, °F | For Joining | Number of Pieces | Each | |
| 08578 | 5/16" | 5/16" | 1 | Not Rated | Not Rated | -20° to 200° | Metal Plastic Asphalt Composites Glass Masonry Wood | 60 | 0000000 | 000000 |