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UV-Resistant Glass Sealants
These sealants don't degrade in sunlight. Also known as glazing compounds, use these sealants to install glass in framing. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, these sealants are RTV (room-temperature vulcanizing).
Elongation and joint compression/expansion tolerance indicate flexibility. For joints between dissimilar materials and in environments with wide temperature fluctuation, choose a sealant with a higher elongation or joint compression/expansion tolerance.
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Elongation | Joint Compression/ Expansion Tolerance | Hardness | Temp. Range, °F | Specifications Met | For Joining | Choose a Color | Each | |
Dow Corning Silicone | |||||||||||||
| 791 | 10.3 | Cartridge | 15 min. | 14 days | Not Rated | -50% to 50% | Soft (Durometer 25A) | -40° to 300° | ASTM C920 Type S Grade NS Class 50 | Metal Metal to Glass | 0000000 | 000000 | |
| 999A | 10.3 | Cartridge | 10 min. | 7 days | Not Rated | -25% to 25% | Soft (Durometer 25A) | -75° to 350° | __ | Metal Metal to Glass | 0000000 | 0000 | |