Rope Putty | McMaster-Carr

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14 Products

Glass Sealing Rope

Press this pliable rope into place to hold glass in window frames and seal leaks. It’s also known as glazing compound. The rope is non-sagging, so it won't drip from vertical and overhead surfaces. It’s good for use between dissimilar materials and in environments with wide temperature fluctuation. Remove the peel-off liner to install.

									Temp., ° F
	Container Type	Dia.	Lg., ft.	Elongation	Joint Compression/Expansion Tolerance	Tensile Strength, psi	Hardness Rating	Application Temp. Range, ° F	Min.	Max.	For Joining	Color (Clarity)		Each
Butyl



		Strip	1/4"	20	Not Rated	Not Rated	16	Soft (Durometer 15A)	-5 to 120	-40	180	Glass Metal Wood Metal to Glass Wood to Glass	Gray (Opaque)	1049A32	000000

Non-Hardening Caulk

Also known as thumb-grade caulk, this forms a non-hardening, moisture-resistant seal that remains pliable.

3M Butyl Strip

Image of Product. Front orientation. Butyl. Non-Hardening Caulk, 3M.

Butyl has a sticky, gummy consistency.

									Black
Mfr. Model No.	Wd.	Thk.	Lg., ft.	Tensile Strength	Hardness Rating	Temp. Range, ° F	For Joining	No. of Pieces		Each
08578	5/16"	5/16"	1	Not Rated	Not Rated	-20 to 200	Asphalt Composite Glass Masonry Metal Plastic Wood	60	9408T21	000000
5354	1/4"	1/8"	50	Not Rated	Medium Hard (Durometer 60A)	-50 to 190	Glass Metal Plastic Wood Metal to Glass Metal to Plastic Plastic to Glass Wood to Glass	1	9408T24	00000
5354	1/4"	1/4"	25	Not Rated	Medium Hard (Durometer 60A)	-50 to 190	Glass Metal Plastic Wood Metal to Glass Metal to Plastic Plastic to Glass Wood to Glass	1	9408T143	00000
5354	3/8"	1/8"	50	Not Rated	Medium Hard (Durometer 60A)	-50 to 190	Glass Metal Plastic Wood Metal to Glass Metal to Plastic Plastic to Glass Wood to Glass	1	9408T22	00000
5354	3/4"	1/8"	50	Not Rated	Medium Hard (Durometer 60A)	-50 to 190	Glass Metal Plastic Wood Metal to Glass Metal to Plastic Plastic to Glass Wood to Glass	1	9408T25	000000

Butyl Strip

Image of Product. Front orientation. Butyl. Non-Hardening Caulk.

Butyl has a sticky, gummy consistency.

							White
Dia.	Lg., ft.	Tensile Strength	Hardness Rating	Temp. Range, ° F	For Joining	No. of Pieces		Each
3/8"	25	Not Rated	Soft (Durometer 20A)	-20 to 350	Glass Masonry Metal Plastic Rubber Wood Metal to Glass Metal to Plastic Metal to Rubber Plastic to Glass Plastic to Rubber Rubber to Glass Wood to Glass	3	9408T15	000000

Butyl Mastic Strip

Image of Product. Front orientation. Butyl Mastic. Non-Hardening Caulk.

Butyl mastic has a clay-like consistency.

							Brown		Gray
Dia.	Lg., ft.	Tensile Strength	Hardness Rating	Temp. Range, ° F	For Joining	No. of Pieces		Each		Each
1/8"	30	Not Rated	Not Rated	-30 to 150	Glass Masonry Metal Plastic Rubber Wood Metal to Glass Metal to Plastic Metal to Rubber Plastic to Glass Plastic to Rubber Rubber to Glass	8	———	0	9408T146	00000
1/8"	45	Not Rated	Not Rated	-30 to 150	Glass Masonry Metal Plastic Rubber Wood Metal to Glass Metal to Plastic Metal to Rubber Plastic to Glass Plastic to Rubber Rubber to Glass	8	9408T144	00000	9408T17	0000
1/8"	90	Not Rated	Not Rated	-30 to 150	Glass Masonry Metal Plastic Rubber Wood Metal to Glass Metal to Plastic Metal to Rubber Plastic to Glass Plastic to Rubber Rubber to Glass	8	9408T145	0000	9408T14	0000

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).

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.

Silicone Rubber

Container
Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength, hr.	Elongation	Joint Compression/Expansion Tolerance	Hardness Rating	Temp. Range, ° F	Food Industry Std.	Mil. Spec.	For Joining	Choose a Color		Each
10.1	Cartridge	30	24	475%	-25% to 25%	Soft (Durometer 20A)	-75 to 400	FDA Compliant 21 CFR 175.105 FDA Compliant 21 CFR 177.2600 NSF/ANSI 51	Fed. Spec. TT-S-00230 Type II Class A Fed. Spec. TT-S-001543 Class A	Composite Glass Metal Plastic Rubber Wood Composite to Glass Metal to Glass Plastic to Glass Rubber to Glass Wood to Glass	Aluminum, Black, Clear, White	6937T92	00000

Caulking Tape

Press this adhesive-backed plastic tape into place for an immediate light-duty seal. It has a score line for easy installation in a corner.

									Temp., ° F
	Container Type	Wd.	Lg., ft.	Reaches Full Strength, hr.	Elongation	Joint Compression/Expansion Tolerance	Tensile Strength	Hardness Rating	Min.	Max.	For Joining	Color (Clarity)		Each
PET with Butyl Adhesive







				1/4" Thick

				Strip	7/8"	11	12	Not Rated	Not Rated	Not Rated	Not Rated	55	80	Composite Glass Masonry Metal Plastic Rubber Wood	White (Opaque)	7582T25	00000