Chemistries

Silastomer® 343 is a black, high performance, single component, ready to use adhesive / sealant. It has a paste-like consistency, which cures to a tough, resilient and durable silicone rubber when exposed to moisture in the air. Designed to provide excellent oil resistance and can be used as a form in place gasket. It will adhere to clean metals, glass, most types of wood, silicone resin, vulcanized silicone rubber, natural and synthetic fiber, ceramic, many plastics and painted surfaces. Silastomer® 343 provides excellent resistance to moisture, weathering, vibration, ozone and extreme temperatures. It can be applied in surface temperatures of 0°F to above 120°F with no loss in performance. Fully cured Silastomer® 343 can withstand extended periods at temperatures up to 400°F.

Supertacker® 353 is a single component, high performance elastomeric adhesive that exhibits exceptional bonding characteristics to a broad range of materials including metals, glass, plastic composites, rubber, leather, wood and vinyl. Supertacker® 353 provides a tough, waterproof bond that won’t crack or become brittle. Supertacker® 353 out-performs silicones, acrylics, and rubber cement because it bonds to more surfaces with greater strength and durability.

Supertacker® 357 is a single component, high performance elastomeric adhesive that exhibits exceptional bonding characteristics to a broad range of materials including metals, glass, plastic composites, rubber, leather, wood and vinyl. Supertacker® 357 provides a tough, waterproof bond that won’t crack or become brittle. Supertacker® 357 out-performs silicones, acrylics, and rubber cement because it bonds to more surfaces with greater strength and durability.

Fusionbond® 371 is a two components methacrylate adhesive. It is specially formulated for structural bonding of thermoplastics, metal, wood and composite assemblies. Fusionbond® 371 is an excellent choice for composite bonding applications in the marine, automotive and construction industries because it requires virtually no surface preparation. Fusionbond® 371 provides toughness at temperatures from -67 to 250°F.

Supertacker® 67662 is a single component, high performance elastomeric adhesive that exhibits exceptional bonding characteristics to a broad range of materials including metals, glass, plastic composites, rubber, leather, wood and vinyl. Supertacker® 67662 provides a tough, waterproof bond that won’t crack or become brittle.

Tuffbond® 304 is a modified epoxy adhesive that provides a very fast room temperature cure. Tuffbond® 304 exhibits very good moisture chemical and heat resistance. This very fast cure epoxy adhesive is specially formulated for rapid in-line assembly of loudy speakers. Tuffbond® 304 is also recommended for bonding metals, wood, ceramics, etc., and can be used for potting and encapsulation of electrical and electronic components.

Tuffbond® 321 is a flexible, low viscosity, general purpose resin system used for casting, potting, and encapsulating of electrical and electronic components. This unique product has been formulated to combine ease in handling with optimum physical, thermal and electrical insulation properties.

Fusionbond® 370 is a two components methacrylate adhesive. It is specially formulated for structural bonding of thermoplastics, metal, wood and composite assemblies. Fusionbond® 370 is an excellent choice for composite bonding applications in the marine, automotive and construction industries because it requires virtually no surface preparation. Fusionbond® 370 provides superior toughness at temperatures from -67 to 250°F.

Hernon® has taken the excellent bond strength of Fusionbond adhesive family and merged it with the simplicity of a two-component, no-mix curing system to create Fusionbond® 374. Fusionbond® 374 is a 100% solid, room temperature cure, versatile structural adhesive which is used in conjunction with Hernon® Activator 56, 15 or 16. This formulation will offer rapid, high strength and high impact resistant bonds to a variety of substrates within minutes. Designed for a wide variety of substrates, Fusionbond® 374 offers excellent temperature and chemical resistance. The two-component, no-mix system allows controlled assembly ideal for production and repair applications. A structural bond develops within minutes.

Tuffbond® 317 is a two component, room temperature cure system. By changing the ratio of resin and hardener, the cured adhesive can change from a tough and flexible to a hard and rigid system. The resin offers a unique combination of hardness and flexibility with high chemical and solvent resistance. Tuffbond® 317 is recommended for bonding metal, glass, wood, concrete, and rubber, and can be used for potting and encapsulation of electrical and electronic components.

Tuffbond® 302 is a modified epoxy adhesive that provides a very fast room temperature cure. Tuffbond® 302 exhibits very good moisture chemical and heat resistance. This very fast cure epoxy adhesive is specially formulated for rapid in-line assembly of loud speakers. Tuffbond® 302 is also recommended for bonding metals, wood, ceramics, etc., and can be used for potting and encapsulation of electrical and electronic components.

Tuffbond® 318 is a modified epoxy adhesive that provides a fast room temperature cure. Tuffbond® 318 exhibits very good moisture chemical and heat resistance. This fast cure epoxy adhesive is specially formulated for rapid in-line assembly of loud speakers. Tuffbond® 318 is also recommended for bonding metals, wood, ceramics, etc., and can be used for potting and encapsulation of electrical and electronic components.

Porosity Sealant (HPS) 38374R is the solution to leak proof parts, improving machinability, in addition to increasing the durability and surface quality for painting and plating. The required addition of HPS Initiator activates the dual-cure system enabling the system to cure anaerobically at room temperature or at elevated temperatures. The cured, hardened resin exhibits superior chemical resistance and elevated temperature stability. The microscopic voids, where potential leaks occur (between metal grains or ceramic or plastic molecules) in the part are filled by low viscosity resin during vacuum application. Sealed micro-pores cure without shrinkage to a tough, cross-linked, thermoset polymer, permanently sealing the work piece. Residual adhesive film is washed from the part surfaces by water during the rinsing cycle. The parts leave the impregnating process without surface residue and can then be used in production within a short period of time. When used in preparation for plating or painting processes, the impregnation process also eliminates absorption of plating material (like acids) or painting prep solvents that could otherwise bleed out of the pores causing finishes to discolor, blister, pit or peel. Sealed powdered metal parts exhibit better machinability, enhanced tool life and better dimensional control.

Hernon Dissipator 746D is a thermally conductive adhesive formulated for bonding electrical components to heat sinks or printed circuit boards. Fast room temperature cure combined with excellent heat dissipation for thermally sensitive components and controlled strength for service repair provide perfect replacement for tapes, epoxies, silicones, fasteners and mechanical clips. Typical Applications Typical applications include bonding transformers, transistors and other heat generating electronic components to printed circuit board assemblies or heat sinks.

Hernon Dissipator 745D is a thermally conductive room temperature cure adhesive that is designed for bonding electrical components to heat sink with a controlled gap. Dissipator 745D, through a special shimming property, insulates the component electrically while allowing thermal conductivity. This special shimming feature produces a constant gap of 0.005 in. to 0.006 in. between components. Product Benefits • No mixing required (eliminates errors in mixing ratio) • Room temperature cure. No heat required. • Eliminates screws and rivets for assembly. • Eliminates the air space between components. • High k factor for heat conductive application

Hernon® 525 is a pre-applied, micro-encapsulated adhesive for threaded fasteners. Hernon® 525 stays on the bolt until the shearing action of an engaging nut applied to the coated bolt causes the capsules to break allowing the adhesive to cure. This material securely locks and seals against vibration loosening and fluid leakage. Typical Applications Locking & Sealing: • Head bolts • Truck Axle bolts • Transmission nuts • Pipe plugs and fittings Product Benefits • Improves reliability. • Prevents loosening of bolts due to vibration. • Seals against leakage. • Prevents threads from corroding. • Easily visible for inspection. • Pre-coated parts can be packaged and shipped in normal fashion. • Excellent solvent resistance. •Bonds to stainless steel bolts.