CEMEDINE SX720B Flame-Retardant Elastic Adhesive is a black, one-component bonding and sealing material developed for electrical and electronic assemblies that require reliable adhesion, flexibility, insulation, and flame resistance. Based on acrylic-modified silicone resin technology, it cures through atmospheric moisture at room temperature and forms a durable elastic layer. Its solvent-free, siloxane-free formulation and UL 94 V-0 recognition make it a practical choice for circuit-board reinforcement, component fixation, insulating seals, and waterproof protection.

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CEMEDINE SX720B Flame-Retardant Elastic Adhesive for Electronics

CEMEDINE SX720B Flame-Retardant Elastic Adhesive is supplied ready to use, eliminating the need to weigh or mix separate components. This helps simplify dispensing, reduce preparation errors, and improve consistency in manual or automated production. The material begins curing after exposure to moisture in the air and develops a strong, flexible bond without requiring high-temperature ovens.

The black paste has a typical viscosity of approximately 42 Pa·s at 23°C, allowing controlled application around electronic parts, wiring, coils, capacitors, housings, and narrow sealing areas. Its typical tack-free time is approximately nine minutes under stated test conditions, supporting efficient handling during electronics assembly.

Key Benefits of CEMEDINE SX720B Flame-Retardant Elastic Adhesive

CEMEDINE SX720B Flame-Retardant Elastic Adhesive combines fast initial strength development with long-term durability. Unlike rigid adhesives that may concentrate stress, the cured elastic layer can absorb vibration, impact, and dimensional movement caused by thermal expansion or contraction.

UL 94 V-0 recognized flame-retardant performance
One-component system for simple and efficient production
Room-temperature moisture curing without mixing
Siloxane-free formulation for electronic applications
Elastic bonding that helps resist vibration and thermal stress
Black color for visible coverage and controlled appearance
Suitable for bonding, insulating sealing, and waterproof protection

After curing, the material has a typical Shore A hardness of approximately 78, tensile strength of about 3.8 MPa, elongation at break of around 100%, and density of approximately 1.59 g/cm³. Its glass-transition temperature is approximately -60°C, helping the cured adhesive retain useful flexibility under low-temperature operating conditions.

Electrical Performance of CEMEDINE SX720B Flame-Retardant Elastic Adhesive

CEMEDINE SX720B Flame-Retardant Elastic Adhesive is engineered for electrical and electronic parts where insulation and environmental protection are important. Typical electrical properties include a volume resistivity of approximately 3.1 × 10¹² Ω·cm, a dielectric constant of about 6.1 at 100 Hz, and a dielectric loss tangent of approximately 0.2 at 100 Hz.

The material also provides typical thermal conductivity of approximately 1.0 W/m·K. Although it is not positioned as a specialized high-thermal-conductivity compound, this property can support heat transfer through bonded electronic assemblies when used with an appropriate joint design.

Applications of CEMEDINE SX720B Flame-Retardant Elastic Adhesive

Typical applications include fixing capacitors, coils, and other components to printed circuit boards, sealing power supplies and transformers for electrical insulation, and creating waterproof seals around electronic parts. It may also be used for component reinforcement, cable-entry sealing, housing assembly, vibration reduction, and protection of industrial control devices.

CEMEDINE SX720B Flame-Retardant Elastic Adhesive is suitable for electronic equipment, automotive electrical systems, household appliances, communication devices, LED assemblies, sensors, power modules, and industrial control products. Its elastic cured structure helps protect bonded components against vibration, impact, and movement during operation.

Material compatibility and adhesion should be confirmed on actual metals, plastics, protective coatings, and circuit-board surfaces before mass production. Testing is especially important when bonding sensitive plastics, low-surface-energy materials, or assemblies exposed to unusual environmental conditions.

How to Apply CEMEDINE SX720B Flame-Retardant Elastic Adhesive

Ensure that all bonding surfaces are clean, dry, and free from dust, oil, moisture, flux residue, release agents, and loose contamination. Dispense a uniform amount of adhesive onto the required area, assemble or position the components, and maintain correct alignment during the initial curing stage.

Curing speed depends on adhesive thickness, ambient moisture, temperature, airflow, and joint design. Avoid moving, testing, or electrically loading the assembly before sufficient curing has occurred. For deeper sections, allow additional curing time because moisture must gradually penetrate the adhesive layer.

Storage of CEMEDINE SX720B Flame-Retardant Elastic Adhesive

Store the product in its original tightly sealed container in accordance with the official technical and safety instructions. Protect it from excessive heat, direct sunlight, moisture contamination, and incompatible substances. For critical applications, complete flame-resistance, insulation, adhesion, thermal-cycle, vibration, and waterproof testing under actual service conditions.

CEMEDINE SX720B Flame-Retardant Elastic Adhesive provides an effective combination of flexible bonding, electrical protection, rapid processing, and UL 94 V-0 flame resistance for demanding electronic manufacturing and industrial assembly applications.

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View the official CEMEDINE SX720B technical product information for current specifications and application guidance.

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