KONISHI FB500HW Flame Retardant Adhesive is a white, one-component elastic adhesive developed for fixing, bonding, insulating, and sealing electrical and electronic components. Its high-viscosity, non-sag paste maintains bead shape around components and on vertical surfaces, helping manufacturers apply controlled amounts without excessive flow. The moisture-curing modified-silicone polymer forms a firm yet resilient bond while supporting efficient room-temperature assembly. UL 94 V-0 certification makes this grade suitable for applications where flame resistance and electrical reliability are important.

KONISHI FB500HW Flame Retardant Adhesive for electronic component fixing and insulation sealing

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KONISHI FB500HW Flame Retardant Adhesive Benefits

The ready-to-use formulation eliminates weighing and mixing, helping reduce process variation, preparation time, and material waste. Its high viscosity provides shape retention, allowing stable dots and beads around transformers, power modules, circuit-board parts, lead wires, and other compact assemblies. Because the cured material remains elastic, it can help absorb vibration, impact, and movement rather than creating an excessively brittle joint.

The white appearance supports visual inspection and suits light-colored housings or assemblies where a clean finish is preferred. The product is formulated without organic tin compounds, aligning with environmental and electronic-manufacturing requirements. Its combination of flame resistance, electrical insulation, adhesion, and non-sag application makes it a versatile production material.

KONISHI FB500HW Flame Retardant Adhesive Applications

Typical uses include insulating seals around power supplies and transformers, fixing components on printed circuit boards, securing fan-motor lead wires, stabilizing connectors, and sealing gaps in electrical appliances or industrial electronic modules. The adhesive can also support component reinforcement where vibration, transport shock, or repeated equipment operation may place stress on solder joints and mechanical connections.

FB500HW is suitable for bonding compatible stainless steel, ABS, polycarbonate, and other engineering materials after validation. Surface treatments, plastic additives, coatings, and contamination can influence adhesion, so production testing on components is essential before commercial approval.

Typical KONISHI FB500HW Flame Retardant Adhesive Properties

Konishi identifies FB500H as a high-viscosity, shape-retaining grade in the flame-retardant FB series. Published typical data include viscosity around 150 to 300 Pa·s at 23°C, specific gravity from 1.59 to 1.69, skin formation in approximately 5 to 15 minutes at 23°C and 50% relative humidity, stainless-steel tensile-shear strength near 2.2 N/mm², and Type A durometer hardness around 90. These values are representative rather than guaranteed specifications.

How to Apply KONISHI FB500HW Flame Retardant Adhesive

Clean all surfaces and remove oil, dust, moisture, oxidation, flux residue, and mold-release agents. Apply a uniform bead or controlled dot directly to the target area, assemble the parts promptly, and fixture them when movement is possible. Ensure the adhesive has access to atmospheric moisture during curing, especially in deep or enclosed joints.

Validate nozzle size, dispensing pressure, bead dimensions, skin time, handling time, and final cure under actual production conditions. Close the package immediately after use to limit moisture exposure. Review the current Safety Data Sheet before handling, storage, ventilation planning, or disposal.

For automated production, the stable paste can support repeatable cartridge dispensing and accurate placement around densely arranged components. This helps engineers reduce overflow, maintain consistent insulation distances, and create a cleaner assembly appearance while improving process control across medium- and high-volume manufacturing lines.

Why Buy KONISHI FB500HW Flame Retardant Adhesive?

KONISHI FB500HW Flame Retardant Adhesive combines UL 94 V-0 flame resistance, high viscosity, reliable shape retention, electrical insulation, and elastic bonding in a convenient one-component format. It is a commercial choice for power supplies, transformers, PCB components, fan motors, appliances, and electronic assemblies requiring secure fixing and protective sealing.

Review the official KONISHI electronic-component adhesive information before qualification. Explore our electronic component adhesives for more flame-retardant, elastic, thermal-management, and precision assembly solutions.

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