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832B – Black Epoxy for Electronics

832B is a general purpose, rigid, 2-part black epoxy. Once cured, this black potting compound provides extreme environmental and physical protection for printed circuit boards and electronics. The rich black color ensures intellectual property (IP) is secure and tamper-proof. The 832B is an ideal product where the main need is general protection with no need for any secondary features.

832B is a black epoxy resin that’s ideal for projects needing basic protection is harsh climates. Its tough finish protects circuits from sudden shock and impacts, shielding frail components and boosting the lifespan of circuits. The mixed liquid is thin, so it spreads well over surfaces and covers small parts. The black resin epoxy bonds well to most surfaces and is not corrosive to copper.

Convenient 2A:1B volume mix ratio
Low mixed viscosity of 3 300 cP
Extremely high compressive and tensile strength
Excellent adhesion to a wide variety of substrates, including metals, composites, glass, ceramics, and many plastics
Excellent electrical insulating characteristics
Broad service temperature range of -40 to 140 °C (-40 to 284 °F)
Extreme resistance to water and humidity (allows for submersion where needed)
Solvent-free

Full Product Details

832B can easily enter small gaps and pits since it is such a thin compound. The epoxy resin provides excellent insulation and protects components from static discharge. The epoxy cures to a hard finish with good chemical resistance. These features protect against vibration, abrasion, thermal shock, humidity, salt water, fungus, and many harsh chemicals.

The 832B bonds well to many surfaces including wood, metal and glass, with metal-to-metal bond strength of nearly 2,500 psi. The adhesive strength of 832B means it is difficult to remove it after curing from electronic and electrical components. This feature ensures protection against counterfeiting once potted.

The epoxy contains no filler, optimizing not just the flow but also insulation properties. The cured plastic has a low dielectric constant meaning it does not interfere with incoming signals. This feature makes the 832B ideal for potting and bonding electronics in telecom and other communication devices.

The design of the 832B prioritized ease-of-use and should be problem-free for users with a good understanding of epoxy. Those with a history of epoxy adhesives or potting compounds will appreciate how user-friendly the compound is. The thin liquid and convenient mix ratio mean the epoxy is easy to mix and remove air for a cleaner finished look.

This black epoxy potting compound has a convenient 2:1 volume mix ratio. The ratio makes it compatible with most dispensing equipment. 832B cures at room temperature or elevated temperatures. After mixing, the epoxy has a long work life with minimal exotherm, ideal for high volume processing.

Packaging is available either as a liquid kit or in a dual cartridge. The liquid kit sizes scale from small hobbyist users to large scale production. The low viscosity and mix ratio make it easy to dispense with meter-mix systems for best finishes. The cartridge dispenses through a mixing nozzle for air-free mixing using a cartridge gun.

For a 1:1 mix ratio consider 832HD. We have clear 2-part epoxies for applications that require monitoring such as our 832C or 832WC. We also offer flexible, thermal and high temperature epoxy potting compounds. Our 2-part flame-retardant epoxy potting compounds are 834B, 834HTC, 834BLV and 834FX.

Our 9510 is a 1-part epoxy that offers unparalleled convenience. We also have quick setting polyurethane and silicones potting compounds.

Available Sizes

Part #	Net Vol.	Net Wt.	Packaging	Packaging Preview
832B-375ML (Discontinued)	375 mL	403 g	2 Bottle Kit
832B-450ML	450 mL	484 g	Dual Cartridge
832B-3L	2.55 L	2.74 kg	3 Can Kit
832B-60L	60 L	64.5 kg	3 Pail Kit