Magnets Epoxies | McMaster-Carr

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15 Products

About Structural Adhesives

Quick-Set Epoxy Structural Adhesives

For quick repairs, these epoxies begin to harden in 6 minutes or less. Epoxies are the strongest and most weather- and chemical-resistant structural adhesives.

These have two parts that must be mixed. The size listed is the combined total of the two parts. Use cartridges with a dispensing gun and mixer nozzle to simultaneously mix and dispense adhesives.

HY4090 is a blend of epoxy and instant-bond adhesive for a balance of strength, cure speed, and temperature resistance.

50132 works especially well on plastics and composites.

Loctite® Adhesives

	Container				Strength
Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Shear, lbs./sq. in.	Peel	Mix Ratio	Consistency (Viscosity)	Temp. Range, °F	Color	For Joining		Each
HY4090	1.69	Cartridge	3 min.	7 days	2,420	Not Rated	1:1	Thick Liquid (19,000 cP)	-65° to 300°	Gray	Metal, Plastic, Rubber, Composites, Masonry, Wood	00000000	000000
HY4090	1.69	Cartridge	3 min.	7 days	2,420	Not Rated	1:1	Thick Liquid (19,000 cP)	-65° to 300°	Off-White	Metal, Plastic, Rubber, Composites, Masonry, Wood	00000000	00000
HY4090	13.5	Cartridge	3 min.	7 days	2,420	Not Rated	1:1	Thick Liquid (19,000 cP)	-65° to 300°	Off-White	Metal, Plastic, Rubber, Composites, Masonry, Wood	0000000	000000

J-B Weld Adhesives

Mfr. Model		Container				Strength
Name	No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Shear, lbs./sq. in.	Peel	Mix Ratio	Consistency (Viscosity)	Temp. Range, °F	Color	For Joining		Each
PlasticWeld	50132	0.85	Syringe	5 min.	60 min.	2,000	Not Rated	1:1	Thick Liquid (9,000 cP)	-20° to 300°	Yellow	Metal, Plastic, Rubber, Composites, Masonry, Wood	000000	00000

Mixer Nozzles, Plungers, and Dispensing Guns

		Each
Mixer Nozzle for 1.69 fl. oz. Loctite® Cartridges	000000000	00000
Mixer Nozzle for 6.76 fl. oz. and 13.5 fl. oz. Cartridges	000000000	0000
Air-Powered Dispensing Gun for 1.69 fl. oz. Loctite® Cartridges	000000000	000000
Dispensing Gun for 1.69 fl. oz. Cartridges	00000000	00000
Dispensing Gun for 13.5 fl. oz. Cartridges	0000000	000000

Epoxy Structural Adhesives

Epoxies are the strongest and most weather- and chemical-resistant structural adhesives. They work especially well on metals. For putty adhesives, slice off the required amount, then knead it together to form a moldable adhesive.

J-B Weld Adhesives

Mfr. Model		Container				Strength
Name	No.	Net Weight, oz.	Type	Begins to Harden	Reaches Full Strength	Shear, lbs./sq. in.	Peel	Consistency (Viscosity)	Temp. Range, °F	Color	For Joining		Each
HighHeat	8297	2	Stick	60 min.	8 hrs.	900	Not Rated	Putty (Not Rated)	-20° to 450°	Gray	Metal, Plastic, Rubber, Composites, Masonry	000000	000000
PlasticWeld	8237	2	Stick	20 min.	24 hrs.	900	Not Rated	Putty (Not Rated)	-20° to 300°	Off-White	Plastic, Rubber, Composites, Masonry	000000	0000

Slow-Set Epoxy Structural Adhesives

To allow time to adjust and position parts, these epoxies remain workable for at least 90 minutes. The strongest and most weather- and chemical-resistant structural adhesives, epoxies work especially well on metals.

These have two parts that must be mixed. The size listed is the combined total of the two parts.

J-B Weld Adhesives

Mfr. Model		Container				Strength
Name	No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Shear, lbs./sq. in.	Peel	Mix Ratio	Consistency (Viscosity)	Max. Temperature, °F	For Joining		Each
Original	50165	0.85	Syringe	4 hrs.	24 hrs.	1,800	Not Rated	1:1	Paste (150,000 cP)	550°	Metal, Plastic, Rubber, Composites, Glass, Masonry	000000	00000

Waterproof Epoxy Structural Adhesives

Even when used under water, these adhesives maintain their strength. The most weather- and chemical-resistant structural adhesives, epoxies tend to work especially well on metals.

Two-part epoxies must be mixed. The size listed is the combined total of the two parts.

J-B Weld Adhesives

Mfr. Model		Container				Strength
Name	No.	Size, fl. oz.	Type	Begins to Harden	Reaches Full Strength	Shear, lbs./sq. in.	Peel	Mix Ratio	Consistency (Viscosity)	Temp. Range, °F	Color	Environment	For Joining		Each
MarineWeld	50172	0.85	Syringe	5 min.	1 hrs.	1,800	Not Rated	1:1	Paste (100,000 cP)	-20° to 300°	White	Salt Spray, Submersible	Metal, Plastic, Rubber, Composites, Glass, Masonry, Wood	000000	000000

Metal-Reinforced Epoxy Structural Adhesives

These machinable epoxies are mixed with steel, but won’t rust, so they can be used to repair cracks and threaded holes. The strongest and most weather- and chemical-resistant structural adhesives, epoxies work especially well on metals. Slice off your required amount, then knead it together to form a moldable adhesive.

Mfr. Model		Container				Strength
Name	No.	Net Weight, oz.	Type	Begins to Harden	Reaches Full Strength	Shear, lbs./sq. in.	Peel	Consistency (Viscosity)	Temp. Range, °F	Color	For Joining		Each
SteelStik	8267	2	Stick	5 min.	60 min.	900	Not Rated	Not Rated	-20° to 300°	Gray	Metal, Rubber, Composites, Masonry	000000	00000

Flexible Light-Activated Instant-Bond Adhesives

These adhesives stay pliable for flexible bonds that resist cracking. For easy positioning, they begin to harden only when exposed to light.

1700A257 and 2454N1 fluoresce under UV light for easy inspection.

Container
Size, fl. oz.	Type	Max. Gap Size Filled	Begins to Harden	Reaches Full Strength	Light Intensity Requirements to Reach Full Strength	Cure Type	Consistency (Viscosity)	Elongation	Temp. Range, °F	Color	For Joining		Each
Adhesives
1.69	Bottle	0.25"	5 sec.	30 min.	5 sec. @ 100 mW/cm²	UV Light	Thin Liquid (850 cP)	Not Rated	45° to 80°	Clear	Ceramic, Composites, Glass, Metal, Plastic, Rubber	000000	000000