High
chemical
resistance

A potting compound and coating for use in very harsh environments. Superior chemical resistance for moisture and oil, acids and bases in continuous full submersion. High stability to 200°C continuous full submersion and autoclave (500 cycles). Superior for electrical potting applications in down-hole oil, automotive, aerospace, and military environments.

Bonds
dissimilar
materials

An adhesive for bonding dissimilar materials such as plastics including UHMW, HDPE, PP, PET, PEEK, PPS, PBT, Acetal, ETFE, PVC, PVCF, PVDF, ABS, ECTFE, polyamide, polyimide rubber and urethane on metal, glass, composites, cement, and wood.

Easy Use

Two part, primerless, semi-rigid epoxy, high tensile strength, ambient and thermal cure. Low HAZMAT impact. Available in handheld and pneumatic gun actuated cartridges, gallons and drums.

Harsh Environments

Marine,
Civil Engineering,
Downhole oil,
Underwater,
Medical,

Electronic,
Mining,
Automotive,
Industrial.

Description

BONDiT™ B-4811 is a two-part, state-of-the-art 100% solids, room-temperature curing, rigid epoxy resin system. Especially designed for potting applications for electronics and electrical assemblies, environmental sealing, as well as a hard coating for corrosion resistance. In addition, it will bond engineering plastics and elastomers to various substrates.

BONDiT™ B-4811 is higher chemical resistance version the BONDiT™ B-481 and handles very harsh environments easily with outstanding effectiveness against moisture, salt water, acids, alkalis, oils, corrosive gases and detergents. BONDiT™ B-4811 has high thermal stability, readily handling 200°C continuous and is rated for down-hole oil and deepsea applications. B-4811 offers superior corrosion resistance. Likewise mechanical vibration, shock and impact are easily absorbed by B-4811 while protecting surfaces, bonded assemblies and encapsulated sensitive electronics.
B-4811 is suitable for at least 500 cycles of autoclaving in medical applications.

This product used in conjunction with BONDiT A-3 affords exceptional corrosion protection for metal surfaces, especially in cathodic / anodic environments. BONDiT A-3/B-4811 to metal adhesion resists pH 11.0 levels at elevated temperatures of 95°C.

With excellent dielectric properties BONDiT B-4811 may be used as an electrical encapsulant, such as for back fill of electrical connectors and power components. It may then overmolded with urethanes, high temperature and pressure elastomeric molding, and thermoplastics molding.

Typical Properties

Mixing, Curing
and
Storage

A wide range of curing regimes may be employed: ambient set in 6 hours, tack free in 12 hours, and 95% cure in 24 hours; cure at 150°F—tack free in 2 hours, 98% in 4 hours; or 3 hours full cure at 200°F with no ambient incubation time.

Mix part A with part B, 2:1 ratio by volume or weight. Degasing is optional. Pot life is typically 40 minutes, at ambient temperature. Surface prep by abrading or grit blasting substrates with #100 AlOx followed by degrease and/or alcohol wipe.

The usable shelf life of unopened containers of BONDiTTM B-4811 resin is one year, and should be stored in cool, dry place. When not in use, containers