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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.
Dry Time | |||||||||||
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Mfr. Model No. | 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 | |
E-60NC | 1.7 | Thick Liquid | 60 | 24 | 550 | Not Rated | -65° to 250° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Titanium, Plastic, Composites, Fiberglass | Black | 0000000 | 000000 |
E-60NC | 6.8 | Thick Liquid | 60 | 24 | 550 | Not Rated | -65° to 250° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Titanium, Plastic, Composites, Fiberglass | Black | 0000000 | 00000 |
E-60NC | 13.5 | Thick Liquid | 60 | 24 | 550 | Not Rated | -65° to 250° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Titanium, Plastic, Composites, Fiberglass | Black | 0000000 | 00000 |
Dispensing Gun for 1.7 fl. oz. Cartridges | 00000000 | Each | 000000 |
Mixer Nozzle for 1.7 fl. oz. E-60NC Cartridges | 00000000 | Each | 0000 |
Mixer Nozzle for 6.8 fl. oz. and 13.5 fl. oz. Cartridges | 0000000 | Each | 0000 |
Dispensing Gun for 6.8 fl. oz. Cartridges | 0000000 | Each | 000000 |
Dispensing Gun for 13.5 fl. oz. Cartridges | 0000000 | Each | 000000 |
Heat-Transfer Epoxy 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, fl. oz. | Consistency | Touch | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Max. Temp., °F | Heating Requirements to Reach Full Strength | For Use On | Color | Each | |
0.9 | Thick Liquid | 25 min. | 24 | 450 | 1.87 | 500° | 1 hr. @ 250° F then 1 hr. @ 350° F | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Iron, Silver, Titanium, Plastic, Composites, Ceramic, Glass | Black | 0000000 | 000000 |
1 | Gel | 4 hrs. | 6 | Not Rated | 1.87 | 600° | 4 hrs. @ 250° F then 2 hrs. @ 350° F | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Iron, Silver, Titanium, Plastic, Composites, Ceramic, Glass | Black | 0000000 | 00000 |
1.5 | Thin Liquid | 30 min. | 26 | 450 | 0.21 | 500° | 1 hr. @ 250° F then 1 hr. @ 350° F | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Iron, Silver, Titanium, Plastic, Composites, Ceramic, Glass | Amber | 0000000 | 00000 |

Dry Time | ||||||||||
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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 |

Dry Time | |||||||||||
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Container Size, fl. oz. | Consistency | Touch | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Max. Temp., °F | Heating Requirements to Reach Full Strength | For Use On | Color | Each | |
16 | Thin Liquid | 30 min. | 26 | 450 | 0.21 | 500° | 1 hr. @ 250° F then 1 hr. @ 350° F | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Iron, Silver, Titanium, Plastic, Composites, Ceramic, Glass | Amber | 0000000 | 0000000 |
Light-Activated Epoxy Potting Compounds
Handle potted items within minutes—these potting compounds dry quickly when exposed to UV light. For added strength and durability, cure them with heat. Since they’re epoxy, they won’t break down from chemicals or moisture. They’re also excellent electrical insulators and withstand a wide range of temperatures. Use them to shield components from dust, moisture, chemicals, mechanical shock, and vibration. You need a mixer nozzle (not included) and a gun and plunger (both sold separately) to dispense. The nozzle lets you apply these compounds precisely.
For maximum effectiveness, these compounds need to be heat cured after they’re cured with UV light. Overall dry time includes heat curing at 149° F.

Dry Time | |||||||||||
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Mfr. Model No. | Container Size, fl. oz. | Consistency | Touch, min. | Overall, hrs. | Light Intensity Requirements to Reach Full Strength | Cure Type | Temp. Range, °F | For Use On | Color | Each | |
Loctite® Compounds—Extra Hard | |||||||||||
3336 | 1.4 | Thick Liquid | 5 | 16 | 60 seconds @ 30 mW/cm2 | UV Light | -65° to 350° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Fiberglass, Composites, Plastic, Silver | Amber | 0000000 | 000000 |

For Cartridge Size | Each | |
1.4 fl. oz. | 0000000 | 000000 |

For Cartridge Size | Each | |
1.4 fl oz. | 00000000 | 00000 |
Flexible Epoxy Potting Compounds
Combine the flexibility of silicone with the durability of standard epoxy—these compounds are great for protecting sensitive electronics that need to flex or expand and contract. Because they’re an epoxy, they still have excellent moisture, chemical, and abrasion resistance. They withstand a wide range of temperatures, and this formulation won’t crack or split as components heat up and cool down. These compounds are excellent electrical insulators, and they’ll shield your components from moisture and dust. You can also use them as an adhesive since they’re also tacky.
They come in a cartridge, so you can apply them precisely. To dispense, they require a mixer nozzle and gun (both sold separately).

Dry Time | ||||||||
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Container Size, fl. oz. | Consistency | Touch, hrs. | Overall, hrs. | Hardness Rating | Temp. Range, °F | For Use On | Each | |
1.69 | Thick Liquid | 24 | 72 | Soft | -85° to 275° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Ceramic, Glass | 0000000 | 000000 |

For Cartridge Size | Each | |
1.69 fl. oz. | 00000000 | 000000 |

For Cartridge Size | Each | |
1.69 fl. oz. | 00000000 | 00000 |
Epoxy Potting Compounds for Harsh Environments
Tough enough to be permanently submersed in seawater, these compounds protect sensitive electronics, such as circuit boards, semiconductors, and sensors in harsh environments. They resist moisture, salt, and chemicals, so you can use them in corrosive oil, marine, and mining applications. These compounds can also be used within autoclaves. Because they are epoxies, they are rigid, resist wear, and create excellent electrical insulation. They withstand a wide range of temperatures, and this formulation won’t crack or split as components heat up and cool down.
They come in a cartridge, so you can apply them precisely. To dispense, they require a mixer nozzle and gun (both sold separately).

Dry Time | |||||||||||
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Container Size, fl. oz. | Consistency | Touch, hrs. | Overall, hrs. | Hardness Rating | Dielectric Strength, V/mil | Temp. Range, °F | Environment | For Use On | Autoclavable | Each | |
1.69 | Thick Liquid | 12 | 24 | Extra Hard | 500 | -50° to 350° | Corrosive, Salt Spray, Submersible | Brass, Bronze, Copper, Steel, Stainless Steel, Cast Iron, Titanium, Polystyrene Plastic, Polycarbonate Plastic, Polyurethane Rubber, ABS Plastic, PVC Plastic, CPVC Plastic, PVDF Plastic, Polyimide Plastic, HDPE Plastic, Nylon Plastic, PEEK Plastic, Polyethylene Plastic, UHMW Plastic, Polypropylene Plastic, Glass | Yes | 0000000 | 000000 |

For Cartridge Size | Each | |
1.69 fl. oz. | 00000000 | 000000 |

For Cartridge Size | Each | |
1.69 fl. oz. | 00000000 | 00000 |
Ready-to-Use Silicone Potting Compounds


No mixing required—these potting compounds come ready to apply. Use them to encase electronic assemblies for protection from dust, moisture, mechanical shock, and vibration. Softer and more flexible than epoxies and urethanes with the widest temperature range, silicone potting compounds are the best choice for high-temperature applications and electronics exposed to thermal cycling. They have good moisture resistance but poor chemical and abrasion resistance. Silicones provide excellent electrical insulation. They're also known as RTV (room-temperature vulcanizing) compounds because they don’t need heat or UV light to cure.
Container | Dry Time | |||||||||||||
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Mfr. Model No. | Size, fl. oz. | Type | Consistency | Touch | Overall, hrs. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Specifications Met | For Use On | Color | Clarity | Each | |
Dow Corning Compounds—Soft | ||||||||||||||
748 | 3 | Tube | Paste | 30 min. | 24 | 475 | Not Rated | -65° to 350° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Glass | Off-White | Opaque | 000000000 | 000000 |
748 | 10.1 | Cartridge | Paste | 30 min. | 24 | 475 | Not Rated | -65° to 350° | UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Glass | Off-White | Opaque | 000000000 | 00000 |
838 | 3 | Tube | Paste | 45 min. | 24 | Not Rated | Not Rated | -45° to 390° | UL Listed, UL Recognized Component, UL 94 HB | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Ceramic, Glass | White | Opaque | 0000000 | 00000 |
839 | 10.3 | Cartridge | Paste | 35 min. | 24 | Not Rated | Not Rated | -45° to 390° | __ | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Plastic, Rubber, Composites, Fiberglass, Ceramic, Glass | Blue | Semi-Clear | 0000000 | 00000 |
Optically Clear Two-Part Silicone Potting Compounds


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, moisture, mechanical shock, and vibration. Softer and more flexible than epoxies and urethanes with the widest temperature range, these silicone compounds are the best choice for high-temperature applications and electronics exposed to thermal cycling. They have excellent electrical insulation and good moisture resistance but poor chemical and abrasion resistance. Also known as RTV (room-temperature vulcanizing).
Compounds in a cartridge come with a mixer nozzle for precise application. You need a gun (sold separately) to dispense.
Compounds in a bottle are easy to apply in high volumes. Just mix and pour them over components inside containers, such as potting boxes.
Liquid compounds harden around your component to form a strong, durable, and permanent layer of protection.
Gel compounds form a soft and flexible layer of protection. You can also remove them if you need to re-access your components. They are rated IP68 once potted, so they seal out water even if submersed.
Container | Dry Time | |||||||||||||
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Mfr. Model No. | Size | Type | Consistency | Touch, min. | Overall, min. | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Environmental Rating | Certificate | For Use On | Color | Each | |
Loctite® Compounds—Soft | ||||||||||||||
5620 | 13.5 fl. oz. | Cartridge | Thin Liquid | 20 | 30 | 530 | 0.16 | -65° to 390° | __ | Material Certificate with Traceable Lot Number and Product Shelf Life | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Titanium, Plastic, Composites, Fiberglass | Clear | 00000000 | 0000000 |
Momentive Compounds—Medium Soft | ||||||||||||||
RTV615 | 1 lbs. | Bottle | Thick Liquid | 60 | 60 | 500 | 0.19 | -75° to 400° | __ | __ | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Titanium, Plastic, Composites, Fiberglass | Clear | 00000000 | 000000 |
Compounds | ||||||||||||||
__ | 10.1 fl. oz. | Bottle | Gel | 15 | 15 | 500 | 0.2 | -75° to 355° | IP68 | __ | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Silver, Titanium, Plastic, Composites, Fiberglass | Clear | 00000000 | 00000 |
Light-Activated Silicone Potting Compounds

These compounds dry quickly when exposed to UV light allowing you to handle the potted items sooner. Made of silicone, they’re softer and more flexible than epoxy or urethane compounds, so they’re better at protecting against shocks and vibration. They also withstand a wider range of temperatures, so they’re often used with electronics that heat and cool rapidly. These compounds are excellent electrical insulators, and they’ll shield your components from moisture and dust. However, they don’t hold up well to abrasion or chemicals. The tapered nozzle lets you apply them precisely.
Dry Time | ||||||||||||||
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Mfr. Model No. | Container Size, fl. oz. | Consistency | Touch, sec. | Overall, hrs. | Light Intensity Requirements to Reach Full Strength | Cure Type | Dielectric Strength, V/mil | Thermal Conductivity | Temp. Range, °F | Specifications Met | For Use On | Color | Each | |
Loctite® Compounds—Soft | ||||||||||||||
5091 | 10 1/10 | Thick Liquid | 20 | 24 | 60 sec. per side @ 40 mW/cm2 | UV Light | 450 | Not Rated | -65° to 350° | UL Recognized Component | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Fiberglass, Composites, Plastic, Silver | White | 0000000 | 0000000 |
Reusable Silicone Potting Compounds



Make repairs or changes to electrical components after they’ve been potted. While most compounds are permanent, these form a gel that bonds to itself, so you can peel it off without damaging your equipment. Often used in junction boxes, they form a water- and dust-proof seal that’s rated IP68 while also providing excellent electrical insulation. Made of silicone, they withstand a wide range of temperatures and are soft and flexible enough to resist shock and vibration. However, they’re not as strong as permanent potting compounds, so they don’t resist scrapes as well as those made of epoxy and urethane. They’re also not as chemical resistant as epoxy and urethane compounds.
These compounds won’t solidify once you open the container, so you have time to make adjustments when applying them. When removing them from your components, they mostly come off in one piece but there might be some residue left over.
Bottle compounds are a better choice for filling up new enclosures than cartridge compounds because you can pour more in at a time. They have a compartment for each component and require mixing.
Cartridge compounds have a nozzle for precise application. The nozzle can also fit into junction box knockouts, so it’s easier to fill up installed enclosures than it is with bottle compounds. They come ready to use with no mixing required and no waiting time.
Dry Time | |||||||||||||
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Container Size, fl. oz. | Consistency | Touch, min. | Overall, min. | Mix Ratio | Dielectric Strength, V/mil | Thermal Conductivity, W/m-K | Temp. Range, °F | Environmental Rating | For Use On | Color | Clarity | Each | |
Bottle Compounds | |||||||||||||
8.4 | Gel | 15 | 15 | 1:1 | 500 | 0.2 | -75° to 390° | IP68 | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Fiberglass, Ceramic, Glass, Composites, Plastic, Rubber | Blue | Semi Clear | 0000000 | 000000 |
33.8 | Gel | 15 | 15 | 1:1 | 500 | 0.2 | -75° to 390° | IP68 | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Fiberglass, Ceramic, Glass, Composites, Plastic, Rubber | Blue | Semi Clear | 0000000 | 00000 |
Cartridge Compounds | |||||||||||||
9.4 | Gel | __ | __ | __ | 500 | 0.2 | -75° to 390° | IP68 | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Fiberglass, Ceramic, Glass, Composites, Plastic, Rubber | Clear | Clear | 0000000 | 00000 |
Heavy Duty Coatings for Electronics

Thinner than potting compounds, these coatings flow easily into small spaces between electrical components. Use them to secure and insulate hardware on printed circuit boards. Rigid and wear resistant, epoxies have excellent chemical and moisture resistance, withstand a wide range of temperatures, and provide excellent electrical insulation. Dispense with a mixer nozzle and a gun (each sold separately).
Certificates with a traceable lot number and product shelf life are available for these products. Download certificates from ORDER HISTORY after your order ships.
Dry Time | ||||||||||
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Mfr. Model No. | Container Size, fl. oz. | Consistency | Touch, min. | Overall, hrs. | Dielectric Strength, V/mil | Temp. Range, °F | For Use On | Color | Each | |
Loctite® Coatings—Extra Hard | ||||||||||
E-00CL | 1.7 | Thick Liquid | 5 | 24 | 400 | -65° to 180° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Silver, Plastic, Composites, Fiberglass | Clear | 0000000 | 000000 |
E-00CL | 6.8 | Thick Liquid | 5 | 24 | 400 | -65° to 180° | Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, Silver, Plastic, Composites, Fiberglass | Clear | 0000000 | 00000 |