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For Joining For Joining |
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Primer Required For Use On Primer Required For Use On |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Elongation Elongation |
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Specifications Met Specifications Met |
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About Sealant Flexibility
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Noncorrosive Silicone Sealants


Also known as neutral-cure sealants, these won't discolor copper, brass, and concrete. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, sealants are RTV (room-temperature vulcanizing).
Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. Sealants that are good for joining dissimilar materials also work well in environments with wide temperature fluctuation.
Sealants that cannot be sold to California exceed local regulatory limits on VOCs (volatile organic compounds).
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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 | For Joining | Cannot Be Sold To | Choose a Color | Each | |
Dow Corning Silicone | |||||||||||||
737 | 3 | Tube | 5 min. | 24 hrs. | 300% | -25% to 25% | Soft (Durometer 33A) | -85° to 350° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Composites Composites to Glass Glass | __ | Clear | 0000000 | 000000 |
737 | 10.1 | Cartridge | 3 min. | 24 hrs. | 300% | -25% to 25% | Soft (Durometer 33A) | -85° to 350° | Metal Metal to Plastic Metal to Rubber Metal to Composites Metal to Glass Plastic Plastic to Rubber Plastic to Composites Plastic to Glass Rubber Rubber to Composites Rubber to Glass Composites Composites to Glass Glass | CA | 000000 | 00000 |
Primer for Dow Corning 737 and 739 Sealants (16 fl. oz. Bottle) | 0000000 | Each | 000000 |