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KONISHI FB500W Flame-Retardant Elastic Adhesive for Electronic Component Assembly

KONISHI FB500W Flame-Retardant Elastic Adhesive is a one-component, moisture-curing industrial adhesive developed for fixing, bonding, and sealing parts in electrical and electronic assemblies. The white paste cures at room temperature to form a firm yet flexible elastomer, allowing the finished joint to absorb vibration, impact, thermal expansion, and contraction. Its no-mix format supports direct dispensing and helps reduce preparation time, ratio errors, and waste in manual or automated production.

Designed for lithium-ion battery packs, communication equipment, printed circuit boards, and related electronic devices, KONISHI FB500W Flame-Retardant Elastic Adhesive combines strong component retention with durable environmental protection. The cured material remains elastic rather than becoming brittle, helping reduce stress around delicate components and mixed-material interfaces. This makes it useful where rigid adhesives may crack or transfer excessive load into housings, soldered areas, terminals, brackets, or internal modules.

Key Benefits of KONISHI FB500W Flame-Retardant Elastic Adhesive

KONISHI FB500W Flame-Retardant Elastic Adhesive provides UL 94 V-0 flame-retardant performance while avoiding halogen-, phosphorus-, and antimony-based flame-retardant systems. Konishi also identifies the product as free from organotin compounds and low-molecular-weight cyclic siloxanes, supporting electronic manufacturing processes that require carefully controlled material composition.

Typical published properties for the white grade include a viscosity of approximately 70 to 200 Pa·s at 23°C, a specific gravity of about 1.60, and a tack-free time of roughly 7 to 15 minutes. After curing, the material has a typical Shore A hardness of 63, maximum tensile stress of about 3.7 N/mm², and elongation at break of approximately 80%. These values provide a practical balance of firmness, strength, and flexibility for component fixing and protective sealing.

Applications for KONISHI FB500W Flame-Retardant Elastic Adhesive

KONISHI FB500W Flame-Retardant Elastic Adhesive is recommended for securing components inside lithium-ion battery packs and for assembly or sealing work in communication devices. It may also be considered for PCB components, power modules, connectors, sensors, electronic housings, battery-control units, and other assemblies that require flame resistance, electrical protection, and vibration tolerance.

The material offers useful adhesion to a range of compatible substrates used in electronic equipment. However, actual performance depends on the metal or plastic grade, surface coating, contamination, joint design, bead dimensions, temperature, humidity, and service environment. Manufacturers should test representative production parts before mass use, especially where the assembly will experience thermal cycling, moisture, electrical stress, vibration, or long-term mechanical loading.

How to Apply KONISHI FB500W Flame-Retardant Elastic Adhesive

Before applying KONISHI FB500W Flame-Retardant Elastic Adhesive, remove oil, grease, dust, moisture, flux residue, release agents, and loose contamination from every bonding surface. Dispense a controlled bead or dot onto the required area, position the component within the available working period, and apply suitable pressure or temporary support.

Because the product cures through atmospheric moisture, exposed thin sections cure faster than thick or deeply enclosed areas. Keep the assembly stable until sufficient handling strength develops, and allow adequate curing before electrical testing, vibration testing, thermal cycling, packaging, or shipment. For repeat production, standardize surface preparation, dispensing volume, bead geometry, assembly time, fixture method, temperature, humidity, and inspection criteria.

Storage and Safety of KONISHI FB500W Flame-Retardant Elastic Adhesive

Store KONISHI FB500W Flame-Retardant Elastic Adhesive in its original sealed package under the conditions stated on the current product label and safety data sheet. Keep the dispensing outlet clean, close the package immediately after use, and prevent moisture contamination during storage. Operators should use suitable ventilation and personal protective equipment and avoid direct skin or eye contact.

For electronics manufacturers seeking a white, flame-retardant elastic adhesive, KONISHI FB500W Flame-Retardant Elastic Adhesive delivers convenient one-part processing, UL 94 V-0 performance, controlled curing, and durable component protection. It is a practical choice for battery packs, communication equipment, PCB assemblies, connectors, sensors, power modules, and other demanding electronic applications requiring reliable long-term performance. Its white appearance also supports neat visual inspection during quality-control and final assembly. Explore our electronic elastic adhesives and review the official KONISHI technical documentation before production approval.

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