Fed. Spec. TT-S-00230C Class A Sealants

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Mixing Required

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Food Industry Standard

FDA Compliant 21 CFR 177.2600

NSF/ANSI 51

Performance

Nonsagging

Paintable

Yes

Primer Required for Use On

Aluminum

Manufacturer Model Number

995

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

REACH

RoHS

13 Products

About Sealant Flexibility

Made from silicone, these sealants are RTV (room-temperature vulcanizing). 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.

Sealants that cannot be sold to the listed areas are restricted due to chemical regulations and/or product labeling requirements.

Container
Net Weight, oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Joint Compression/ Expansion Tolerance	Hardness	Temp. Range, °F	For Joining	Specifications Met	Clarity	Color	Cannot Be Sold To		Each
Silicone
6.5	Nozzle-Top Can	10 min.	24 hrs.	500%	-25% to 25%	Soft (Durometer 25A)	-60° to 450°	Metal Metal to Glass Glass	Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C, MIL-A-46106 Type I	Opaque	Blue	Outside United States	00000000	000000
6.5	Nozzle-Top Can	20 min.	24 hrs.	560%	-25% to 25%	Soft (Durometer 23A)	-30° to 450°	Metal Metal to Glass Glass	Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C, MIL-A-46106 Type I	Opaque	Black	Outside United States	00000000	00000
6.5	Nozzle-Top Can	60 min.	24 hrs.	400%	-25% to 25%	Soft (Durometer 21A)	-70° to 400°	Metal Metal to Glass Glass	Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C, MIL-A-46106 Type I	Clear	Clear	Outside United States	00000000	00000

Mildew-Resistant Silicone Sealants

Resistant to mold and mildew, these sealants are well suited to high-humidity environments. They’re non-sagging, so they won't drip from vertical and overhead surfaces. Made from silicone, sealants are RTV (room-temperature vulcanizing).

Product labeling requirements restrict sales to the listed areas.

Container
Size, fl. oz.	Net Weight, oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Joint Compression/ Expansion Tolerance	Hardness	Temp. Range, °F	For Joining	Specifications Met	Color	Clarity	Cannot Be Sold To		Each
Silicone
__	6.5	Nozzle-Top Can	10 min.	24 hrs.	400%	-25% to 25%	Soft (Durometer 25A)	-70° to 400°	Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood	ASTM C920 Type S Grade NS Class 25, FDA Compliant 21 CFR 177.2600, Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C, MIL-A-46106 Type I, NSF/ANSI 51	White	Opaque	Outside United States	00000000	000000
__	6.5	Nozzle-Top Can	20 min.	24 hrs.	560%	-25% to 25%	Soft (Durometer 23A)	-80° to 500°	Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood	Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C, MIL-A-46106 Type I	Red	Opaque	Outside United States	00000000	00000
10.1	__	Cartridge	10 min.	24 hrs.	400%	-25% to 25%	Soft (Durometer 25A)	-70° to 400°	Metal Metal to Plastic Metal to Rubber Metal to Glass Plastic Plastic to Rubber Plastic to Glass Rubber Rubber to Glass Glass Masonry Wood	ASTM C920 Type S Grade NS Class 25, FDA Compliant 21 CFR 177.2600, Fed. Spec. TT-S-001543A, Fed. Spec. TT-S-00230C, MIL-A-46106 Type I, NSF/ANSI 51	Clear	Clear	Outside United States	00000000	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.

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)

0000000

Each

000000

Caulk

Caulk is non-sagging, so it 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 a sealant can sustain. Caulk is best suited to joints between similar materials that aren't exposed to wide temperature fluctuation.

Container													Each
Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Joint Compression/ Expansion Tolerance	Tensile Strength, psi	Hardness	Temp. Range, °F	Specifications Met	For Joining	Choose a Color		1-11	12-Up
Acrylic
10.1	Cartridge	60 min.	3 days	500%	-50% to 50%	Not Rated	Not Rated	-20° to 180°	ASTM C920 Type S Grade NS Class 25; Fed. Spec. TT-S-00230C Class A	Metal, Masonry, Wood	Almond, Black, Brown, Clear, Gray, White	000000	00000	00000

HVAC Sealants

Form flexible water-resistant seals on metal, plastic, and rubber joints in heating, ventilation, air conditioning, and refrigeration applications. These sealants are 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.

Container
Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Elongation	Joint Compression/ Expansion Tolerance	Tensile Strength, psi	Hardness	Temp. Range, °F	Specifications Met	For Joining	Choose a Color		Each
Silicone
9.4	Cartridge	20 min.	24 hrs.	Not Rated	-25% to 25%	Not Rated	Soft (Durometer 26A)	-60° to 400°	Fed. Spec. TT-S-001543A Class A, Fed. Spec. TT-S-00230C Class A	Metal Metal to Plastic Metal to Rubber Metal to Composites Plastic Rubber Composites	Clear, Gray, White	0000000	00000