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Light-Activated Instant-Bond Adhesives



For easy positioning, these adhesives begin to harden only when exposed to light.
Thick liquids fill large gaps and won't drip on vertical surfaces. Thin liquids flow to fill small gaps between close-fitting parts.
352 can also be cured with an activator (sold separately).
Use adhesives in syringes with a dispensing gun with plunger (sold separately).
Container | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | 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) | Temp. Range, °F | Color | For Joining | Each | |
Loctite® Adhesives | |||||||||||||
349 | 1.69 | Bottle | __ | 5 sec. | 30 sec. | 8 sec. @ 10 mW/cm2 | UV Light | Thick Liquid (9,750 cP) | -65° to 260° | Light Yellow | Glass, Metal | 00000000 | 000000 |
352 | 1.69 | Bottle | __ | 10 sec. | 60 sec. | 12 sec. @ 6 mW/cm2 | Activator, UV Light | Thick Liquid (19,500 cP) | -65° to 270° | Amber | Glass, Metal, Plastic, Rubber | 00000000 | 00000 |
3104 | 0.84 | Syringe | __ | 5 sec. | 90 sec. | 15 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thin Liquid (150 cP) | -65° to 300° | Light Yellow | Glass, Metal, Plastic, Rubber | 00000000 | 00000 |
3105 | 0.84 | Syringe | __ | 5 sec. | 90 sec. | 15 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thin Liquid (300 cP) | -65° to 300° | Light Yellow | Glass, Metal, Plastic, Rubber | 00000000 | 00000 |
3105 | 33.8 | Bottle | __ | 5 sec. | 90 sec. | 15 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thin Liquid (300 cP) | -65° to 300° | Light Yellow | Glass, Metal, Plastic, Rubber | 00000000 | 000000 |
3301 | 0.84 | Syringe | __ | 5 sec. | 90 sec. | 15 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thin Liquid (150 cP) | -65° to 300° | Light Yellow | Glass, Metal, Plastic | 00000000 | 00000 |
3311 | 0.84 | Syringe | __ | 5 sec. | 90 sec. | 15 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thin Liquid (300 cP) | -65° to 300° | Light Yellow | Glass, Metal, Plastic | 00000000 | 00000 |
3341 | 0.84 | Syringe | __ | 5 sec. | 30 sec. | 10 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thin Liquid (530 cP) | -65° to 300° | Light Yellow | Metal, Plastic | 00000000 | 00000 |
3922 | 0.84 | Syringe | __ | 10 sec. | 30 sec. | 10 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thin Liquid (300 cP) | -65° to 300° | Light Yellow | Glass, Metal, Plastic, Rubber | 00000000 | 00000 |
4311 | 1 | Bottle | 0.008" | 5 sec. | 24 hrs. | 10 sec. @ 30 mW/cm2 | UV Light, Visible Light | Thin Liquid (1,050 cP) | -65° to 200° | Green | Ceramic, Composites, Glass, Metal, Plastic, Rubber, Wood | 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.
Use adhesives in syringes with a dispensing gun with plunger (sold separately).
Container | ||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | 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 | |
Loctite® Adhesives | ||||||||||||||
3103 | 0.84 | Syringe | 0.02" | 5 sec. | 90 sec. | 18 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (11,250 cP) | 260% | -65° to 300° | Light Yellow | Glass, Metal, Plastic | 00000000 | 000000 |
3106 | 0.84 | Syringe | 0.02" | 5 sec. | 90 sec. | 15 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (5,500 cP) | 250% | -65° to 300° | Light Yellow | Glass, Metal, Plastic, Rubber | 00000000 | 00000 |
3106 | 33.8 | Bottle | 0.02" | 5 sec. | 90 sec. | 15 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (5,500 cP) | 250% | -65° to 300° | Light Yellow | Glass, Metal, Plastic, Rubber | 00000000 | 000000 |
3201 | 0.84 | Syringe | __ | 5 sec. | 90 sec. | 20 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (3,750 cP) | 265% | -65° to 300° | Light Yellow | Metal, Plastic | 0000000 | 00000 |
3211 | 0.84 | Syringe | __ | 5 sec. | 90 sec. | 18 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (11,250 cP) | 260% | -65° to 300° | Light Yellow | Glass, Metal, Plastic | 0000000 | 00000 |
3321 | 0.84 | Syringe | 0.02" | 5 sec. | 90 sec. | 15 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (5,500 cP) | 250% | -65° to 300° | Light Yellow | Glass, Metal, Plastic, Rubber | 00000000 | 00000 |
3526 | 0.84 | Syringe | __ | 5 sec. | 30 sec. | 5 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (17,500 cP) | 185% | -65° to 300° | Light Yellow | Metal | 00000000 | 00000 |
3936 | 0.84 | Syringe | __ | 5 sec. | 30 sec. | 15 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (11,000 cP) | 300% | -65° to 300° | White | Metal | 00000000 | 00000 |
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 | 00000 |
Dispensing Gun with Plunger | 0000000 | Each | 000000 |
Moisture-Resistant Light-Activated Instant-Bond Adhesives

Moisture, humidity, and immersion in water won't degrade the bond of these adhesives. For easy positioning, they begin to harden only when exposed to light. Use a dispensing gun with plunger (sold separately) to dispense adhesive.
Container | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Light Intensity Requirements to Reach Full Strength | Cure Type | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
Loctite® Adhesives | ||||||||||||
3494 | 0.84 | Syringe | 5 sec. | 30 sec. | 10 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (6,000 cP) | -65° to 300° | Clear | Glass, Metal | 00000000 | 000000 |
3525 | 0.84 | Syringe | 5 sec. | 30 sec. | 5 sec. @ 6 mW/cm2 | UV Light, Visible Light | Thick Liquid (15,250 cP) | -65° to 300° | Clear | Glass, Metal, Plastic, Rubber | 00000000 | 00000 |
Adhesives | ||||||||||||
__ | 0.84 | Syringe | 60 sec. | 60 sec. | 15 seconds @ 6 mW/cm 2 | UV Light | Thick Liquid (400 cP) | -65° to 350° | Amber | Glass, Magnets, Metal | 00000000 | 00000 |
Dispensing Gun with Plunger | 0000000 | Each | 000000 |
Optically Clear Light-Activated Instant-Bond Adhesives



Invisibly bond glass and metal—these adhesives dry clear. For easy positioning, they begin to harden only when exposed to ultraviolet light.
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) | Temp. Range, °F | For Joining | Each | |
0.84 | Syringe | 0.25" | 10 sec. | 24 hrs. | 20 seconds @ 100 mW/cm2 | UV Light | Thick Liquid (6,950 cP) | -65° to 250° | Glass, Metal | 000000 | 000000 |
1.69 | Bottle | 0.25" | 10 sec. | 24 hrs. | 20 seconds @ 100 mW/cm2 | UV Light | Thick Liquid (6,950 cP) | -65° to 250° | Glass, Metal | 000000 | 00000 |
33.8 | Bottle | 0.25" | 10 sec. | 24 hrs. | 20 seconds @ 100 mW/cm2 | UV Light | Thick Liquid (6,950 cP) | -65° to 250° | Glass, Metal | 000000 | 000000 |
Heavy Duty Light-Activated Coatings for Electronics


Thinner than potting compounds, these coatings flow easily into small spaces between electrical components. They require an ultraviolet curing lamp to reach full strength. Use them to secure and insulate hardware on printed circuit boards.
Syringe coatings require a gun (sold separately) to dispense.
Dry Time | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. | Mfr. Model No. | Container Size, fl. oz. | Consistency | Touch, sec. | Overall | Hardness Rating | Dielectric Strength, V/mil | Temp. Range, °F | Light Intensity Requirements to Reach Full Strength | For Use On | Color | Each | |
Bottle Coatings | |||||||||||||
__ | __ | 1 4/5 | Thin Liquid | 10 | 60 sec. | Not Rated | 34,000 | -65° to 350° | 10 seconds @ 7 mW/cm 2 | Aluminum, Brass, Copper, Steel, Stainless Steel, Silver, Titanium, Fiberglass | Amber | 00000000 | 000000 |
Syringe Coatings | |||||||||||||
Loctite® | 3751 | 4/5 | Thin Liquid | 10 | 2 min. | Extra Hard | 730 | -65° to 270° | 10 seconds @ 100 mW/cm 2 | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Titanium, Plastic, Composites, Fiberglass | Yellow | 00000000 | 00000 |
Dispensing Guns for Syringes | 0000000 | Each | 000000 |
Heavy Duty Optically Clear Light-Activated Coatings for Electronics

Clear enough to read through, this coating allows optimal light transmission for use with LEDs, solar cells, and fiber optics. Thinner than potting compounds, it flows easily into small spaces between electrical components. The coating requires an ultraviolet curing lamp to reach full strength. Dispense with a gun (sold separately).
Dry Time | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Container Size, fl. oz. | Consistency | Touch, sec. | Overall, hrs. | Hardness Rating | Temp. Range, °F | Light Intensity Requirements to Reach Full Strength | For Use On | Color | Each | |
0.8 | Thick Liquid | 10 | 24 | Extra Hard | -65° to 300° | 15 seconds @ 100 mW/cm2 | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Iron, Silver, Plastic, Rubber, Composites, Fiberglass, Ceramic, Glass | Clear | 0000000 | 0000000 |
Dispensing Guns for Syringes | 0000000 | Each | 000000 |