About Structural Adhesives
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Conductive Adhesives for Electronics
An alternative to solder, these flexible, silver-filled adhesives accommodate joint movement. Use them to bond electrical components and repair circuits.
Epoxy adhesives are two-part adhesives that need to be mixed together. The size listed is the combined total of the two parts.
Container | |||||||||||
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Size, fl. oz. | Net Weight, oz. | Begins to Harden | Reaches Full Strength | Thermal Conductivity, W/m-K | Surface Resistivity, ohms-cm | Mix Ratio | Consistency | Temp. Range, °F | For Joining | Each | |
One-Time-Use Packet | |||||||||||
__ | 0.09 | 3 hrs. | 24 hrs. | 1.55 | 0.05 | 1:1.15 | Paste | -75° to 230° | Ceramic, Glass, Metal | 0000000 | 000000 |
Can | |||||||||||
0.5 | __ | 4 hrs. | 5 days | 7.93 | 0.0004 | 1:1 | Paste | 80° to 265° | Metal | 0000000 | 000000 |
1 | __ | 4 hrs. | 5 days | 7.93 | 0.0004 | 1:1 | Paste | 80° to 265° | Metal | 0000000 | 000000 |
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.
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.
Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
DP100 | 6.76 | Cartridge | 5 min. | 48 hrs. | 750 | 2 | 1:1 | Thick Liquid (12,000 cP) | -65° to 320° | Clear | Metal, Plastic, Rubber | 0000000 | 000000 |
Epoxy Structural Adhesives
Epoxies are the strongest and most weather- and chemical-resistant structural adhesives. They work especially well on metals. 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.
DP110, 14310, 14260, and 305-1/2 bond dissimilar materials.
Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
DP110 | 6.76 | Cartridge | 8 min. | 48 hrs. | 2,500 | 20 | 1:1 | Thick Liquid (65,000 cP) | -65° to 350° | Gray | Metal, Metal to Plastic, Metal to Rubber, Plastic, Plastic to Rubber, Rubber | 0000000 | 000000 |
DP190 | 6.76 | Cartridge | 60 min. | 14 days | 850 | 20 | 1:1 | Thick Liquid (8,000 cP) | -65° to 350° | Clear | Metal, Plastic, Rubber, Masonry | 00000000 | 00000 |
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.
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.
Container | Strength | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | For Joining | Each | |
DP190 | 6.76 fl. oz. | Cartridge | 90 min. | 7 days | 1,400 | 20 | 1:1 | Thick Liquid (86,250 cP) | -65° to 350° | Metal, Plastic, Rubber, Masonry | 0000000 | 000000 |
Toughened Epoxy Structural Adhesives
Toughened adhesives are blended with rubber particles for better impact resistance than standard epoxies. They form flexible, resilient bonds. The most weather- and chemical-resistant structural adhesives, epoxies work especially well on metals. Choose an adhesive that hardens quickly for fast repairs, or one that hardens slowly to allow more time for positioning.
The size listed is the combined total of the two parts. Use with a dispensing gun and mixer nozzle to simultaneously mix and dispense adhesives.
Container | Strength | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Type | Begins to Harden | Reaches Full Strength | Shear, lbs./sq. in. | Peel, lbs./in. wd. | Mix Ratio | Consistency (Viscosity) | Temp. Range, °F | Color | For Joining | Each | |
DP420 | 6.76 | Cartridge | 20 min. | 24 hrs. | 280 | 50 | 2:1 | Thick Liquid (30,000 cP) | -65° to 350° | Off-White | Metal, Plastic, Composites | 0000000 | 0000000 |
DP460 | 6.76 | Cartridge | 60 min. | 24 hrs. | 2,500 | 60 | 2:1 | Thick Liquid (30,000 cP) | -65° to 350° | Off-White | Metal, Plastic, Composites | 0000000 | 000000 |
Conductive Surface Fillers for Electronics
A high silver content allows these surface fillers to conduct electricity and heat. Use them to fill gaps and rebuild missing material on electrical connections or to assemble new components. They come as two parts. The size listed is the combined total of the two parts.
Volume resistivity measures how well a material opposes the flow of electricity. The lower the rating, the more electricity it conducts.
Thermal conductivity measures a material’s ability to transfer heat. The higher the rating, the more heat it transfers.
Container | Temp. Range, °F | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Size, fl. oz. | Net Weight, oz. | Type | Begins to Harden | Reaches Full Strength | Thermal Conductivity, W/m-K | Volume Resistivity, ohms-cm | Mix Ratio | Min. | Max. | For Use On | Each | |
Loctite® Surface Fillers | |||||||||||||
3888 | __ | 0.09 | One-Time-Use Packet | 90 min. | 24 hrs. | 1.44 | 0.001 | 100:6 | -40° | 170° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Polycarbonate Plastic | 0000000 | 000000 |
Surface Fillers | |||||||||||||
__ | __ | 0.09 | One-Time-Use Packet | 90 min. | 24 hrs. | 6.05 | 0.009 | 100:6 | -75° | 250° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Ceramic, Glass | 0000000 | 00000 |
__ | __ | 0.35 | One-Time-Use Packet | 90 min. | 24 hrs. | 6.05 | 0.009 | 100:6 | -75° | 250° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Ceramic, Glass | 0000000 | 000000 |
__ | 0.5 | __ | Jar | 4 hrs. | 5 days | 5.77 | 0.0004 | 1:1 | Not Rated | 300° | Aluminum, Brass, Copper, Steel, Stainless Steel | 0000000 | 000000 |
__ | 1 | __ | Jar | 4 hrs. | 5 days | 5.77 | 0.0004 | 1:1 | Not Rated | 300° | Aluminum, Brass, Copper, Steel, Stainless Steel | 0000000 | 000000 |
Conductive Surface Filler Pens for Electronics
Dispense ready-to-use conductive liquid to fill pits and small gaps on circuit board components. These pens are also used to sketch and repair conducive pathways.
Carbon acrylic pens should be used where only a small amount of conductivity is needed, such as circuit boards in keyboards. Their high surface resistivity only allows a small current to pass.
Nickel acrylic pens are best for general purpose repairs, such as bridges and traces in printed circuit boards. They have a medium surface resistivity, so they're a good balance between carbon acrylic and silver epoxy pens.
Silver epoxy pens are the most versatile—use them for any type of repair as well as for repairs that require excellent conductivity, such as connecting through holes on circuit boards without adding jumpers, wiring, or solder. Since they have the lowest surface resistivity, they allow the most current to pass.
Tip | ||||||||||||||
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Container Size, fl. oz. | Dia. | Shape | Begins to Harden, min. | Reaches Full Strength | Surface Resistivity, ohms/sq. | Consistency | Max. Thick. | For Use Outdoors | Temp. Range, °F | Color | For Use On | Cannot Be Sold To | Each | |
Carbon Acrylic | ||||||||||||||
0.2 | 0.06" | Point | 2 | 24 hrs. | 100 | Thin Liquid | 0.003" | Yes | -40° to 245° | Black | Plastic | __ | 0000000 | 000000 |
Nickel Acrylic | ||||||||||||||
0.2 | 0.06" | Point | 2 | 24 hrs. | 0.49 | Thin Liquid | 0.004" | Yes | -40° to 245° | Gray | Plastic | __ | 0000000 | 00000 |
Silver Epoxy | ||||||||||||||
0.2 | 0.03" | Point | 3 | 60 min. | 0.050 | Thin Liquid | Not Rated | No | -65° to 300° | Silver | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium | Outside United States and Canada | 0000000 | 00000 |
Heat-Transfer Potting Compounds
Formulated to draw heat away from sensitive electronic components, these potting compounds have higher thermal conductivity than standard potting compounds. 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.
Cartridge potting compound requires a gun and mixer nozzle (each sold separately) to dispense.
Dry Time | ||||||||||
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Container Size, gal. | Consistency | Touch, min. | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Max. Temp., °F | For Use On | Color | Each | |
1 | Thick Liquid | 25 | 24 | 450 | 1.87 | 500° | Steel, Ceramic, Glass | Black | 0000000 | 0000000 |
Dry Time | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Container Size, fl. oz. | Consistency | Touch, min. | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | For Use On | Color | Each | |
1.7 | Thick Liquid | 15 | 8 | 520 | 1.01 | -40° to 210° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Titanium, Plastic, Composites, Fiberglass | Black | 0000000 | 000000 |
Two-Part Adhesive Dispensing Guns | |||
---|---|---|---|
Dispensing Gun for 1.7 fl. oz. Cartridges | 00000000 | Each | 000000 |
Mixer Nozzles for Two-Part Adhesive Cartridges | |||
---|---|---|---|
Mixer Nozzle for 1.7 fl. oz. Cartridges | 00000000 | Each | 00000 |
Dry Time | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Container Size, fl. oz. | Consistency | Touch | Overall, hrs. | Mix Ratio | Tensile Strength, psi | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Max. Temp., °F | Heating Requirements to Reach Full Strength | For Use On | Color | Each | |
19 | Thick Liquid | 25 min. | 24 | 12:1 | 10,900 | 450 | 1.87 | 500° | __ | Steel, Ceramic, Glass | Black | 0000000 | 0000000 |
20 | Gel | 4 hrs. | 6 | 4:1 | 11,000 | Not Rated | 1.87 | 600° | 4 hrs. @ 250° F then 2 hrs. @ 350° F | Steel, Ceramic, Glass | Black | 0000000 | 000000 |
Epoxy Potting Compounds
Encase electronic assemblies in a layer of epoxy for protection from dust, chemicals, moisture, mechanical shock, and vibration. The strongest of the potting compounds, epoxies are rigid and wear resistant. 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.
Loctite® ES1001™, ES1902™, and ES2500™ come with a mixer nozzle.
Dry Time | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mfr. Model No. | Container Size, fl. oz. | Consistency | Touch | Overall | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Specifications Met | For Use On | Choose a Color | Each | |
3M Compounds—Extra Hard | ||||||||||||
DP270 | 1.64 | Thick Liquid | 3 hrs. | 48 hrs. | 850 | 0.18 | -65° to 210° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Plastic, Rubber, Glass | 00000000 | 000000 | |
DP270 | 6.8 | Thick Liquid | 3 hrs. | 48 hrs. | 850 | 0.18 | -65° to 210° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Plastic, Rubber, Glass | 00000000 | 00000 | |
DP270 | 13.5 | Thick Liquid | 3 hrs. | 48 hrs. | 850 | 0.18 | -65° to 210° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Plastic, Rubber, Glass | Black | 00000000 | 000000 |
Loctite® Compounds—Extra Hard | ||||||||||||
ES1001 | 1.7 | Thick Liquid | 60 min. | 24 hrs. | 1,100 | 0.29 | -10° to 220° | __ | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Plastic, Ceramic, Glass | Black | 0000000 | 00000 |
ES2500 | 1.7 | Thin Liquid | 10 min. | 16 hrs. | 410 | 0.28 | -40° to 220° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Plastic, Ceramic, Glass | Black | 0000000 | 00000 |
Mixer Nozzle for 6.8 fl. oz. 3M Cartridges | 0000000 | Each | 00000 |
Dispensing Gun for 6.8 fl. oz. 3M Cartridges | 0000000 | Each | 000000 |
Mixer Nozzle for 1.64 fl. oz. and 1.69 fl. oz. 3M Cartridges (Mixing Elements: 16) | 0000000 | Each | 0000 |
Dispensing Gun for 1.64 fl. oz. and 1.69 fl. oz. 3M Cartridges | 0000000 | Each | 000000 |
Mixer Nozzle for 13.5 fl. oz. 3M Cartridges | 00000000 | Each | 0000 |
Dispensing Gun for 13.5 fl. oz. 3M Cartridges | 00000000 | Each | 000000 |
Mixer Nozzle for 1.64 fl. oz. 3M Cartridges | 0000000 | Each | 0000 |
Dispensing Gun for 1.7 fl. oz. Loctite Cartridges | 00000000 | Each | 00000 |