ASTM C920 Type S Grade NS Class 50 Sealants

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14 Products

About Sealants

Select a sealant that can stretch, contract, and expand enough for your joints.

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									Temp., ° F
	Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, day	Elongation	Joint Compression/Expansion Tolerance	Tensile Strength, psi	Hardness Rating	Application Temp. Range, ° F	Min.	Max.	For Joining	Color (Clarity)		Each
Polymer



		9	Cartridge	10	3	450%	-50% to 50%	385	Medium Soft (Durometer 44A)	0 to 140	-10	150	Glass Masonry Metal Wood Metal to Glass Wood to Glass	Clear (Clear)	74565A111	000000


		9.5	Cartridge	20	3	570%	-50% to 50%	230	Soft (Durometer 32A)	0 to 140	-10	150	Glass Masonry Metal Wood Metal to Glass Wood to Glass	Black (Opaque)	74565A113	00000
		9.5	Cartridge	20	3	570%	-50% to 50%	230	Soft (Durometer 32A)	0 to 140	-10	150	Glass Masonry Metal Wood Metal to Glass Wood to Glass	White (Opaque)	74565A112	00000

Sealants

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								Temp., ° F					Each
	Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, day	Elongation	Joint Compression/Expansion Tolerance	Tensile Strength, psi	Hardness Rating	Min.	Max.	For Joining	Choose a Color (Clarity)		1-11	12-Up
Polymer



		10.1	Cartridge	60	3	1,000%	-50% to 50%	350	Soft (Durometer 25A)	-40	200	Glass Masonry Metal Plastic Rubber Wood Metal to Glass Metal to Plastic Metal to Rubber Plastic to Glass Plastic to Rubber Rubber to Glass	Black (Opaque), Gray (Opaque), Limestone (Opaque), Tan (Opaque), White (Opaque)	7606A49	00000	00000

Structural Glass Sealants


Cartridge	Sausage Pack

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 rubber, 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									Temp., ° F
	Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden, hr.	Reaches Full Strength, day	Elongation	Joint Compression/Expansion Tolerance	Tensile Strength, psi	Hardness Rating	Application Temp. Range, ° F	Min.	Max.	For Joining	Choose a Color (Clarity)		Each
Dow Silicone Rubber



		795	10.3	Cartridge	3	14	Not Rated	-50% to 50%	60	Medium Soft (Durometer 35A)	-20 to 120	-40	300	Metal	Black (Opaque), Bronze (Opaque), Gray (Opaque), White (Opaque)	7452A21	000000


		795	20	Sausage Pack	3	14	Not Rated	-50% to 50%	60	Medium Soft (Durometer 35A)	-20 to 120	-40	300	Metal	Black (Opaque), Gray (Opaque), Limestone (Opaque), White (Opaque)	7452A22	00000

Structural Noncorrosive Silicone Rubber Sealants


Cartridge	Sausage Pack

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 rubber, 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								Temp., ° F
	Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, day	Elongation	Joint Compression/Expansion Tolerance	Tensile Strength, psi	Hardness Rating	Min.	Max.	For Joining	Primer Req. for Use On	Color (Clarity)		Each
Dow Silicone Rubber



		995	10.3	Cartridge	65	14	525%	-50% to 50%	350	Medium Soft (Durometer 40A)	-40	300	Metal	Aluminum	Black (Opaque)	7436A41	000000


		995	20	Sausage Pack	65	14	525%	-50% to 50%	350	Medium Soft (Durometer 40A)	-40	300	Metal	Aluminum	Black (Opaque)	7436A38	00000

Sealant Primers

		Each
PR-1200 Primer for Dow 700, 732, 733, 734, 736, 737, 739, 786, 995, Loctite®, 76435T21, 76435T11, 7545A611 and 1919N3 Sealants (10.9 fl. oz. Bottle)	7442A23	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						Each		Package
	Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, hr.	Elongation	Joint Compression/Expansion Tolerance	Tensile Strength, psi	Hardness Rating	Wd.	Dp.	Application Temp. Range, ° F	Temp. Range, ° F	For Joining	Choose a Color		Each	Pkg. Qty.		Pkg.
Polyether



		28	Cartridge	30	48	1,000%	-50% to 50%	125	Not Rated	1"	1"	32 to 120	-75 to 300	Asphalt Composite Glass Masonry Metal Plastic Rubber Wood	Black, Gray	75735T41	000000	12	75735T411	0000000

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						Each		Package
	Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, hr.	Elongation	Joint Compression/Expansion Tolerance	Tensile Strength, psi	Hardness Rating	Wd.	Dp.	Application Temp. Range, ° F	Temp. Range, ° F	For Joining	Choose a Color		Each	Pkg. Qty.		Pkg.
Polymer



		28	Cartridge	45	48	400%	Not Rated	200	Soft (Durometer 25A)	1"	1"	35 to 120	-75 to 300	Asphalt Composite Masonry Metal Plastic Rubber Wood	Black, Gray	1602N14	000000	12	1602N141	0000000

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 rubber, these sealants are RTV (room-temperature vulcanizing).

Dow Silicone Rubber

	Container
Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, day	Elongation	Joint Compression/Expansion Tolerance	Hardness Rating	Temp. Range, ° F	Specs. Met	For Joining	Choose a Color		Each
791	10.3	Cartridge	15	14	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	7311A16	00000