ASTM C920 Type S Grade NS Class 50 Sealants

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11 Products

About Sealant Flexibility

These sealants are non-sagging, so they won't drip from vertical and overhead surfaces.

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. For high-wear applications, choose a harder sealant for the most abrasion resistance.

Container												Each
Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Joint Compression/ Expansion Tolerance	Tensile Strength, psi	Hardness	Temp. Range, °F	For Joining	Choose a Color		1-11	12-Up
Hybrid Polymer
10.1	Cartridge	60 min.	3 days	1,000%	-50% to 50%	350	Soft (Durometer 25A)	-40° to 200°	Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood	Black, Gray, Limestone, Tan, White	0000000	00000	00000

All-Weather Application Sealants

Apply these sealants on wet surfaces and in cold temperatures. They’re non-sagging, so they won't drip from vertical and overhead surfaces.

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.

Container
Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Joint Compression/ Expansion Tolerance	Hardness	Temp. Range, °F	For Joining	Color		Each
Hybrid Polymer
9	Cartridge	10 min.	3 days	450%	-50% to 50%	Medium Soft (Durometer 44A)	-10° to 150°	Metal Metal to Glass Glass Masonry Wood Wood to Glass	Clear	000000000	000000
9 1/2	Cartridge	20 min.	3 days	570%	-50% to 50%	Soft (Durometer 32A)	-10° to 150°	Metal Metal to Glass Glass Masonry Wood Wood to Glass	Black	000000000	00000
9 1/2	Cartridge	20 min.	3 days	570%	-50% to 50%	Soft (Durometer 32A)	-10° to 150°	Metal Metal to Glass Glass Masonry Wood Wood to Glass	White	000000000	00000

Structural Noncorrosive Silicone Sealants

Also known as neutral cure, this sealant won't discolor copper, brass, and concrete. It is a structural sealant that combines the mechanical strength of an adhesive with excellent sealing properties and high flexibility. It’s non-sagging, so it won't drip from vertical and overhead surfaces. Made from silicone, this sealant is RTV (room-temperature vulcanizing).

Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement a sealant can sustain. This sealant is best suited to joints between similar materials that aren't exposed to wide temperature fluctuation.

	Container
Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Joint Compression/ Expansion Tolerance	Tensile Strength, psi	Hardness	Temp. Range, °F	For Joining	Color		Each
Dow Corning Silicone
995	10.3	Cartridge	65 min.	14 days	525%	-50% to 50%	350	Medium Soft (Durometer 40A)	-40° to 300°	Metal	Black	0000000	000000
995	20	Sausage Pack	65 min.	14 days	525%	-50% to 50%	350	Medium Soft (Durometer 40A)	-40° to 300°	Metal	Black	0000000	00000

Primer (16-oz. Bottle)

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Each

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Self-Leveling All-Weather Application Concrete Joint Sealants

Apply these sealants on wet surfaces and in cold temperatures. Thinner than non-sagging sealants, these flow easily into cracks and have a smooth finish.

Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain.

Container							For Max. Crack
Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Joint Compression/ Expansion Tolerance	Hardness	Wd.	Dp.	Application Temp. Range, °F	Temp. Range, °F	For Joining	Choose a Color		Each
Hybrid Polymer
28	Cartridge	45 min.	48 hrs.	400%	Not Rated	Soft (Durometer 25A)	1"	1"	35° to 120°	-75° to 300°	Metal, Plastic, Rubber, Asphalt, Composites, Masonry, Wood	Black, Gray	0000000	000000

All-Weather Application Concrete Joint Sealants

Apply these sealants on wet surfaces and in cold temperatures. They're non-sagging, so they won't drip from vertical and overhead surfaces.

Elongation and joint compression/expansion tolerance indicate flexibility—the higher the values are, the more joint movement sealants can sustain. These sealants are best suited to joints between similar materials that aren't exposed to wide temperature fluctuation.

Container								For Max. Crack
Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Joint Compression/ Expansion Tolerance	Tensile Strength, psi	Hardness	Wd.	Dp.	Application Temp. Range, °F	Temp. Range, °F	For Joining	Choose a Color		Each
Polyether
28	Cartridge	30 min.	48 hrs.	1,000%	-50% to 50%	125	Not Rated	1"	1"	32° to 120°	-75° to 300°	Metal, Plastic, Rubber, Asphalt, Composites, Glass, Masonry, Wood	Black, Gray	00000000	000000

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).

	Container
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	Black, Gray	0000000	000000

Structural Glass Sealants

Make seals that support glass under heavy loads in equipment and buildings. These sealants are also known as glazing compounds. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, sealants are RTV (room-temperature vulcanizing).

Joint compression/expansion tolerance indicates flexibility—the higher the value is, the more joint movement a sealant can sustain.

	Container
Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Joint Compression/ Expansion Tolerance	Tensile Strength, psi	Hardness	Application Temp. Range, °F	Temp. Range, °F	For Joining	Choose a Color		Each
Dow Corning Silicone
795	10.3	Cartridge	3 hrs.	14 days	-50% to 50%	60	Medium Soft (Durometer 35A)	-20° to 120°	-40° to 300°	Metal	Black, Bronze, Gray, White	0000000	000000
795	20	Sausage Pack	3 hrs.	14 days	-50% to 50%	60	Medium Soft (Durometer 35A)	-20° to 120°	-40° to 300°	Metal	Black, Gray, Limestone, White	0000000	00000