KONISHI SL210W Elastic Adhesive is a one-component, ultra-fast-curing adhesive and sealant developed for electrical, electronic, and precision industrial assemblies. The white, non-sag paste is based on a silyl-terminated polymer and cures through atmospheric moisture to form a flexible elastomer. It combines bonding, gap filling, and sealing in one material, helping manufacturers simplify assembly while protecting components exposed to impact, vibration, and repeated movement.

KONISHI SL210W Elastic Adhesive for electronic component bonding and sealing

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KONISHI SL210W Elastic Adhesive Benefits

KONISHI SL210W Elastic Adhesive offers very rapid skin formation, supporting shorter handling times and efficient production cycles. Konishi publishes a typical skin-over time of approximately two to five minutes at 23°C and 50% relative humidity. The ready-to-use one-part format eliminates weighing and mixing, reduces operator error, and works with cartridge dispensing systems for manual or automated application.

The cured adhesive remains elastic instead of becoming brittle. This flexibility helps distribute stress between different substrates and improves resistance to shock and vibration. The formulation is designed without tin compounds and without low-molecular-weight cyclic polysiloxanes associated with electrical contact problems, making the product particularly relevant to sensitive electrical and electronic manufacturing.

KONISHI SL210W Elastic Adhesive Applications

Typical uses include bonding and filling speaker components, digital-camera mechanisms, electronic housings, sensors, connectors, small motors, and other precision parts. It adheres to rigid plastics such as polycarbonate and ABS, as well as compatible metal materials. It is especially useful where components may experience vibration, impact, thermal expansion, or minor movement during service.

The white paste supports applications where a light-colored bond line is preferred for appearance or inspection. Its non-sag consistency helps maintain bead shape on vertical surfaces and around irregular components. Because plastic grades, coatings, release agents, and surface treatments vary, users should test adhesion and material compatibility on actual production parts before commercial approval.

Typical KONISHI SL210W Elastic Adhesive Properties

Published guide values for SL210W include a viscosity of approximately 50 to 100 Pa·s at 23°C, specific gravity of 1.20 to 1.30, Shore A hardness near 50, maximum tensile stress around 4.5 N/mm², and elongation at break of approximately 275%. Typical tensile-shear strength is listed at about 3.75 N/mm² for stainless steel, 2.50 N/mm² for ABS, and 2.59 N/mm² for polycarbonate under the stated test methods.

The material also provides electrical insulation properties useful in electronic assembly. Konishi lists typical volume resistivity of 1.7 × 10¹² Ω·cm, thermal conductivity of 0.24 W/m·K, dielectric constant of 4.91 at 1 MHz, and dissipation factor of approximately 0.046. These figures are representative laboratory values rather than guaranteed specifications.

How to Apply KONISHI SL210W Elastic Adhesive

Clean bonding surfaces thoroughly and remove oil, moisture, dust, oxidation, and mold-release residue. Apply a uniform bead to one substrate, assemble the parts promptly, and hold or fixture them until adequate handling strength develops. Ensure the adhesive remains exposed to atmospheric moisture during curing, particularly when using deep joints or enclosed component designs.

Optimize bead size, bond-line thickness, dispensing speed, fixture time, and cure conditions through production trials. Cure rate depends on temperature, humidity, adhesive depth, substrate type, and joint geometry. Close the container immediately after use and review the current Safety Data Sheet before storage, handling, or workplace implementation.

Why Buy KONISHI SL210W Elastic Adhesive?

KONISHI SL210W Elastic Adhesive combines ultra-fast skin formation, flexible curing, non-sag application, electrical insulation, and adhesion to common rigid plastics and metals. It is a practical Japanese industrial solution for manufacturers seeking reliable bonding and sealing of electronic components exposed to shock or vibration.

Review the official KONISHI SL and FB Series catalog before qualification. Explore our electronic component adhesives for additional elastic bonding, sealing, potting, and assembly solutions.

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