RTV6708 Sealants | McMaster-Carr

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).

	Container
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	Color		Each
Momentive/GE Silicone
RTV6708	10.1	Cartridge	25 min.	24 hrs.	450%	Not Rated	Soft (Durometer 15A)	-75° to 400°	Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass	CA	White	00000000	000000

Noncorrosive Silicone Sealants with Material Certification

This sealant includes a material certificate with traceable lot number, test report, and product shelf life. Also known as neutral-cure, this sealant won't discolor copper, brass, and concrete. It’s non-sagging, so it won't drip from vertical and overhead surfaces. Made from silicone, this sealant is RTV (room-temperature vulcanizing). It cannot be sold to California because it exceeds local regulatory limits on VOC (volatile organic compounds).

Elongation indicates flexibility—the higher the value is, the more a sealant can stretch. This sealant is good for use between dissimilar materials and in environments with wide temperature fluctuation.

	Container
Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Tensile Strength, psi	Hardness	Temp. Range, °F	For Joining	Color	Cannot Be Sold To		Each
Momentive/GE Silicone
RTV6708	10.1	Cartridge	25 min.	24 hrs.	450%	225	Soft (Durometer 18A)	-75° to 400°	Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass	White	CA	00000000	000000