For Use On For Use On |
|---|
Maximum Temperature Maximum Temperature |
|---|
|
Minimum Temperature Minimum Temperature |
|---|
|
Thermal Conductivity Thermal Conductivity |
|---|
|
|
Color Color | Show |
|---|
|
Color Color | Hide |
|---|
Consistency Consistency |
|---|
|
|
Formulation Formulation |
|---|
|
Flexibility Flexibility |
|---|
![]() | Flexible |
Surface Resistivity Surface Resistivity |
|---|
|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
|---|
|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
|---|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
|---|
Material Material |
|---|
|
Specifications Met Specifications Met |
|---|
About Structural Adhesives
More
About Selecting Thermal Insulation
More
Chemical-Resistant Surface Fillers for Metal

Chemicals will not affect these two-part epoxies. They repair cracked, worn, and damaged surfaces. The size listed is the combined total of the two parts.
Container | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size, fl. oz. | Type | Begins to Harden, min. | Reaches Full Strength | Consistency | Mix Ratio | Approximate Coverage @ Thick. | Max. Thick. | For Use Outdoors | Temp. Range, °F | Color | Finishing Method | For Use On | Each | |
Surface Fillers | ||||||||||||||
| 11 | Tube | 25 | 7 days | Paste | 1:1 | 50 sq. in. @ 1/4" | 1/4" | Yes | -55° to 180° | Silver | Machine, Drill, Sand, Tap | Aluminum, Brass, Bronze, Steel, Cast Iron, Titanium | 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. Product regulations restrict sales to the listed jurisdictions/areas.
Surface fillers in one-time-use packets and jars come as two parts. The size listed is the combined total of the two parts.
Surface filler in a pen dispenses as a thin, ready-to-use liquid that fills in pitting and small gaps. It’s often used on circuit boards to fix components or to prototype new systems.
Volume resistivity and surface resistivity measure 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 | Surface Resistivity, ohms/sq. | Mix Ratio | Min. | Max. | For Use On | Cannot Be Sold To | 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 |
| __ | 0.2 | __ | Pen | 3 min. | 60 min. | Not Rated | __ | 0.050 | __ | -65° | 300° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium | Outside United States and Canada | 0000000 | 00000 |
| __ | 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 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.
Thermoplastic adhesives are one-part adhesives that don’t need to be mixed. Dry to the touch and faster and easier to apply than two-part adhesives, they’re best for use on automated assembly lines. Often used to join solar cells in solar panels, these adhesives make instant electrical connections without flux at lower temperatures than soldering. Since they attach to solar cells with heat and slight pressure, they limit stress cracks that can form when soldering. These adhesives can also be used as a bridge between multiple solar panels.


Container | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |

| Lg. | Wd. | Thick. | Melting Temp., °F | Max. Temp., °F | Begins to Harden | Reaches Full Strength | Thermal Conductivity, W/m-K | Surface Resistivity, ohms-cm | Consistency | For Joining | Each | |
Strip with Adhesive on One Side | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12" | 1/16" | 0.001" | 250° | 300° | 5 sec. | 5 sec. | 12 | 0.0001 | Film | Metal | 00000000 | 00000 |
Retaining Compounds for Loose-Fitting Parts
Fill gaps up to 0.02" to secure worn unthreaded cylindrical metal parts such as shafts, bearings, and press-fit assemblies. These retaining compounds begin to harden once coated surfaces are pressed together, blocking exposure to air.
Primer (sold separately) cleans the surface and decreases the time to reach full strength. It is recommended when working with aluminum, stainless steel, and titanium; black-oxide finishes, and cadmium and zinc coatings.
Certificates with a traceable lot number and product shelf life are available for these products. Download certificates from ORDER HISTORY after your order ships.
Container | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mfr. Model No. | Size, fl. oz. | Type | Max. Gap Size Filled | Begins to Harden | Reaches Full Strength | Temp. Range, °F | Consistency | Viscosity, cP | Shear Strength, lbs./sq. in. | Color | Each | |
High Locking Strength | ||||||||||||
Loctite® Retaining Compounds | ||||||||||||
| 660 | 0.2 | Tube | 0.02" | 20 min. | 24 hrs. | -65° to 300° | Paste | 250,000 | 2,490 | Silver | 0000000 | 000000 |
| 660 | 1.69 | Tube | 0.02" | 20 min. | 24 hrs. | -65° to 300° | Paste | 250,000 | 2,490 | Silver | 0000000 | 00000 |
Adhesive Maintenance Kits

Assorted adhesives for routine maintenance work or quick repairs.
| Mfr. | Includes | Component (Mfr. Model No.) | Reaches Full Strength, hrs. | Mixing Required | Each | |
| Loctite® | Case | Pipe Thread Sealant (567)—1.69 fl. oz. Bottle Threadlocker (243)—0.34 fl. oz. Bottle Threadlocker (263)—0.34 fl. oz. Bottle Retaining Compound (609)—0.34 fl. oz. Bottle Retaining Compound (660)—1.69 fl. oz. Tube Gasket Maker Sealant (587)—2.4 fl. oz. Tube Gasket Maker Sealant (518)—1.69 fl. oz. Tube Pipe Thread Sealant (5452)—1.69 fl. oz. Tube | 24 | No | 0000000 | 0000000 |
Quick-Install Fiberglass Pipe Insulation
Hook-and-loop fasteners make it easy to install, remove, and reuse this flexible insulation. Use on steam, hot water, and process pipes and fittings.
For technical drawings and 3-D models, click on a part number.

- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
3/8" Wall Thick. | |||||||
|---|---|---|---|---|---|---|---|
| ID | For Pipe Size | For Copper Tube Size | Lg., ft. | Flexibility | R Value | Each | |
| 7/8" | 1/2 | 3/4 | 20 | Flexible | 1.7 | 00000000 | 0000000 |
| 1 1/8" | 3/4 | 1 | 20 | Flexible | 1.7 | 00000000 | 000000 |
| 1 3/8" | 1 | 1 1/4 | 20 | Flexible | 1.7 | 00000000 | 000000 |
| 1 5/8" | 1 1/4 | 1 1/2 | 20 | Flexible | 1.7 | 00000000 | 000000 |
| 1 7/8" | 1 1/2 | __ | 20 | Flexible | 1.7 | 00000000 | 000000 |
| 2 3/8" | 2 | __ | 20 | Flexible | 1.7 | 00000000 | 000000 |

- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke

- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke

- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke

- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke

- Temperature Range: 60° to 450° F
- Heat Flow Rate: 0.23 Btu @ 75° F
- Density: 1 lbs./cu. ft.
- Color: Silver
- Specifications Met: ASTM E84 25/50 for Flame and Smoke
Pipe Condensation-Reducing Rubber Strips

Wrap pipes, tubing, and fittings to prevent condensation from forming. These strips are for use on copper, iron, and steel.
Vinyl foam strips restrict absorption of water, air, and gas. These strips have a foil covering.
For technical drawings and 3-D models, click on a part number.
| Thick. | Wd. | Lg., ft. | Temperature Range, °F | Flexibility | Backing Type | Color | Each | |
Vinyl Foam | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/8" | 2" | 30 | -40° to 180° | Flexible | Adhesive | Silver | 0000000 | 000000 |
Heat-Reflecting Air Bubble Duct Insulation Sheets

- Temperature Range: -60° to 180° F
- Heat Flow Rate: Not Rated
- Density: Not Rated
- Color: Silver
- Specifications Met: ASTM E84 20/30 for Flame and Smoke
Typically used as duct wrap, these flexible sheets consist of polyethylene bubbles covered with aluminum polyester foil that prevent 96% of heat from radiating into or away from duct. Use on rectangular and round ductwork.
For technical drawings and 3-D models, click on a part number.

Spacers installed between the duct and air bubble insulation sheet increase the R-value to 6. One spacer roll covers approximately 10 ft. of 8" duct.
| Thick. | Wd. | Lg., ft. | Each | |
| 5/16" | 2" | 25 | 0000000 | 00000 |

































