Optically Clear Epoxies | McMaster-Carr

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30 Products

Optically Clear Epoxy Structural Adhesives


Can	Cartridge	Single-Use Packet

Syringe	Tube

For invisible bond lines, these adhesives dry clear. Epoxies are the strongest and most chemical-resistant structural adhesives. They bond especially well on metal. Choose an epoxy that hardens quickly for fast repairs, or one that hardens slowly to allow more time for positioning.

These adhesives come in two parts that need to be mixed. The container size listed is the combined total of the two parts.

Model Number E-30CL and Model Number 0151—Suitable for fiber-optic applications.

Cartridge—To mix and dispense these adhesives, you'll need a mixer nozzle and dispensing gun.

Paste—Thicker than liquid adhesives but still spreadable—good for filling gaps and covering surfaces.

Thick Liquid—Flow into narrower gaps than gels and pastes, but thick enough to stay put on uneven surfaces.

		Container				Strength
	Mfr. Model No.	Size, fl. oz.	Type	Begins to Harden, min.	Reaches Full Strength	Shear, psi	Peel, lbf/in. wd.	Mix Ratio	Consistency	Viscosity, cP	Temp. Range, ° F	Specifications Met	Flammability Rating	For Joining	Pkg. Qty.		Pkg.
3M







				Scotch-Weld

				DP100 Plus	1.64	Cartridge	3	48 hr.	1,700	13	1:1	Thick Liquid	8,750	-65 to 300	—	UL 94 HB	Metal, Plastic, Rubber, Metal to Plastic, Metal to Rubber, Plastic to Rubber	1	7467A55	000000


				DP105	1.64	Cartridge	4	48 hr.	1,300	35	1:1	Thick Liquid	7,500	-65 to 300	—	—	Metal, Plastic, Rubber, Metal to Plastic, Metal to Rubber, Plastic to Rubber	1	7467A58	00000


				Loctite®



						D609	1.69	Cartridge	5	24 hr.	1,800	Not Rated	1:1	Thick Liquid	15,000	-65 to 180	—	—	Metal, Plastic, Rubber	1	1813A247	00000


						E-05CL	1.69	Cartridge	3	24 hr.	1,430	Not Rated	1:1	Thick Liquid	2,500	-65 to 180	—	—	Metal, Plastic, Rubber, Metal to Plastic, Metal to Rubber, Plastic to Rubber	1	6430A25	00000
						E-05MR	1.69	Cartridge	5	24 hr.	3,380	Not Rated	1:1	Thick Liquid	25,000	-65 to 250	—	—	Metal, Plastic, Rubber, Metal to Plastic, Metal to Rubber, Plastic to Rubber	1	6430A38	00000
						E-30CL	1.69	Cartridge	30	24 hr.	3,100	Not Rated	2:1	Thick Liquid	10,000	-65 to 250	—	—	Ceramic, Glass, Metal, Plastic	1	6430A23	00000
						E-30CL	6.76	Cartridge	30	24 hr.	3,100	Not Rated	2:1	Thick Liquid	10,000	-65 to 250	—	—	Ceramic, Glass, Metal, Plastic	1	1765A48	00000
						M-31CL	1.69	Cartridge	30	24 hr.	3,100	Not Rated	2:1	Thick Liquid	6,000	-65 to 300	ISO 10993	—	Glass, Metal, Plastic, Rubber	1	7370A38	00000
						0151	1.69	Cartridge	60	24 hr.	2,675	Not Rated	2.7:1	Thick Liquid	60,000	-65 to 160	—	—	Glass, Metal, Plastic, Rubber	1	1813A253	00000
						0151	3.3	Tube	60	24 hr.	2,675	Not Rated	2.7:1	Thick Liquid	60,000	-65 to 160	—	—	Glass, Metal, Plastic, Rubber	1	1813A225	00000
						0151	41.6	Can	60	24 hr.	2,675	Not Rated	2.7:1	Thick Liquid	60,000	-65 to 160	—	—	Glass, Metal, Plastic, Rubber	1	1813A223	000000
						608	1.69	Cartridge	5	24 hr.	2,980	Not Rated	1:1	Paste	100,000	-65 to 130	—	—	Metal, Plastic, Rubber	1	6430A44	00000
						608	2.8	Tube	5	24 hr.	2,980	Not Rated	1:1	Paste	100,000	-65 to 130	—	—	Metal, Plastic, Rubber	1	1813A351	00000


						608	—	Single-Use Packet	5	24 hr.	2,980	Not Rated	1:1	Paste	100,000	-65 to 130	—	—	Metal, Plastic, Rubber	10	1813A248	00000


						J-B Weld







										ClearWeld

										50112	0.85	Syringe	5	60 min.	2,000	Not Rated	1:1	Thick Liquid	10,000	—	—	—	Metal, Plastic, Rubber, Wood	1	7605A18	0000


										Other Structural Adhesives



												—	1.69	Cartridge	30	36 hr.	2,450	Not Rated	2:1	Thick Liquid	4,000	-65 to 260	—	—	Ceramic, Composite, Glass, Metal, Plastic, Wood, Metal to Glass, Metal to Plastic, Plastic to Glass	1	7524A171	00000


												—	—	Single-Use Packet	60	7 day	2,400	Not Rated	1.61:1	Thick Liquid	14,000	0 to 180	—	—	Glass, Metal	10	7538A13	00000

Accessories for Structural Adhesives

		Each
Mixer Nozzle for 1.64 fl. oz. 3M Cartridges (Step Tip)	7467A12	00000
Mixer Nozzle for 1.64 fl. oz. 3M Cartridges (Taper Tip)	7467A73	0000
Mixer Nozzle for 1.69 fl. oz. Loctite® and Devcon Cartridges	74695A12	0000
Mixer Nozzle for 6.76 fl. oz. and 13.5 fl. oz. Loctite® Cartridges	7451A61	0000
Dispensing Gun for 6.76 fl. oz. Cartridges	7451A51	000000
Dispensing Gun for 1.64 fl. oz. Cartridges	7467A41	000000
Air-Powered Dispensing Gun for 1.64 fl. oz. 3M Cartridges	7467A15	000000
Air-Powered Dispensing Gun for 1.69 fl. oz. Loctite® Cartridges	74695A101	000000
Dispensing Gun for 1.69 fl. oz. Cartridges	74695A71	00000
Replacement Plunger for 1.64 fl. oz. 3M Cartridges	7467A48	00000

Optically Clear Epoxy Potting Compounds


Cartridge Loctite®	Cartridge

Clear enough to read through, these UV-resistant potting compounds allow optimal light transmission for use with LEDs, solar cells, and fiber optics. Use them to encase electronic assemblies for protection from dust, chemicals, moisture, mechanical shock, and vibration. Rigid and wear resistant, epoxies are the strongest of the potting compounds. They have excellent chemical and moisture resistance, withstand a wide range of temperatures, and provide excellent electrical insulation. All require a mixer nozzle and gun to dispense.

Model Number ES1901—Loctite® ES1901™ comes with a mixer nozzle.

				Dry Time
	Mfr. Model No.	Container Size, fl. oz.	Consistency	Touch, min.	Overall, hr.	Mixer Nozzle Included	Mix Ratio	Dielectric Strength, V/mil	Thermal Conductivity, W/(m⋅°C)	Temp. Range, ° F	For Use On	Color	Clarity		Each
Loctite® Cartridge Potting Compounds—Extra Hard



		ES1901	1.7	Thick Liquid	3	24	Yes	1:1	400	Not Rated	-40 to 220	Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Plastic, Ceramic, Glass	Clear	Clear	7369A14	000000


		Cartridge Potting Compounds—Extra Hard



				—	1.7	Thick Liquid	40	24	No	1:1	500	0.24	-65 to 275	Aluminum, Brass, Bronze, Cast Iron, Copper, Iron, Steel, Stainless Steel, Silver, Plastic, Rubber, Composite, Fiberglass, Ceramic, Glass	Amber	Clear	7369A37	00000

Accessories for Potting Compounds

For Cartridge Size, fl. oz.	Includes		Each
1.42, 1.58, 1.69	1:1 and 2:1 Mix Ratio Plungers	74695A71	000000

For Cartridge Size, fl. oz.	No. of Mixing Elements		Each
1.42, 1.69	20	74695A12	00000

Epoxy Structural Adhesive Assortments

Keep a variety of epoxy adhesives on hand for a range of applications and materials. Epoxies are the strongest and most chemical-resistant adhesives. They bond especially well on metal.

Component Included		Each
General Purpose (Masonry, Metal, Plastic, Rubber) Nonsagging (Masonry, Metal, Wood) Slow-Set (Composite, Metal) Quick-Set (Masonry, Metal, Rubber) High Strength (Metal, Rubber) Waterproof (Composite, Masonry, Metal) Optically Clear (Glass, Metal) Machinable (Composite, Metal)	7538A16	000000