Mfr. No. 786 Sealants | McMaster-Carr

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 rubber, 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.

Dow Silicone Rubber

Cartridge

Model Number 786—Dow 786 meets NSF/ANSI 51 standards and is FDA compliant for direct contact with food.

	Container
Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, hr.	Elongation	Joint Compression/Expansion Tolerance	Hardness Rating	Temp. Range, ° F	For Joining	Food Industry Std.	Specs. Met	Color (Clarity)		Each
786	10.1	Cartridge	20	48	600%	-25% to 25%	Soft (Durometer 25A)	-75 to 350	Glass Metal Plastic Rubber Metal to Glass Metal to Plastic Metal to Rubber Plastic to Glass Plastic to Rubber Rubber to Glass	FDA Compliant 21 CFR 177.2600 NSF/ANSI 51	ASTM C920 Type S Grade NS Class 25	White (Semi-Clear)	74885A66	000000
786	10.1	Cartridge	20	48	600%	-25% to 25%	Soft (Durometer 25A)	-75 to 350	Glass Metal Plastic Rubber Metal to Glass Metal to Plastic Metal to Rubber Plastic to Glass Plastic to Rubber Rubber to Glass	FDA Compliant 21 CFR 177.2600 NSF/ANSI 51	ASTM C920 Type S Grade NS Class 25	White (Opaque)	74885A65	00000
786	10.1	Cartridge	20	48	600%	-25% to 25%	Soft (Durometer 25A)	-70 to 350	Glass Metal Plastic Rubber Metal to Glass Metal to Plastic Metal to Rubber Plastic to Glass Plastic to Rubber Rubber to Glass	FDA Compliant 21 CFR 177.2600 NSF/ANSI 51	ASTM C920 Type S Grade NS Class 25	Clear (Clear)	74885A13	00000

Sealant Primers