Acc Silicones AS1803 Liquid Thermal Adhesive, Silicone, White, High Thermal Conductivity, 220°C Max Temp

Acc Silicones AS1803 Liquid Thermal Adhesive is a one-part, non-corrosive RTV (room temperature vulcanizing) silicone rubber adhesive engineered for superior thermal conductivity and robust mechanical bonding. Designed especially for the thermal coupling of electronic and electrical components, the AS1803 provides reliable adhesion in situations where efficient heat dissipation is essential. Its high bond strength and excellent adhesion eliminate the need for welding techniques when attaching components such as heat sinks, chips, sensors, and power semiconductors.

This adhesive is distinguished by its wide operating temperature range, functioning effectively from -50°C to +220°C. It forms a tough, weather- and moisture-resistant seal, making it suitable for demanding industrial and laboratory environments. The neutral cure formulation is solvent-free and undergoes rapid curing on exposure to atmospheric moisture, streamlining application and reducing health and environmental hazards common to solvent-based adhesives.

With a high thermal conductivity of 1.55 W/mK and a specific gravity of 2.24, AS1803 ensures effective heat transfer and robust mechanical support across various substrates, notably metals and plastics. Its single-part, ready-to-use nature allows application via manual or pneumatic dispensers or bulk containers using drum dispensing systems. For best results, the adhesive layer should be 1 - 2 mm thick and allowed to cure undisturbed for at least 24 hours.

Key application areas include heat sink bonding in electronics, potting and encapsulating sensors, chip scale packaging, power semiconductor interface assembly, and general thermal management in industrial and laboratory setups. Its removal, if necessary, can be safely accomplished with thermal adhesive remover and lint-free cloths, with recommended use of protective equipment.

Acc Silicones AS1803 is compliant with EN 14387 standards and produced in the United Kingdom. Its primary users include industrial assembly lines, electronics manufacturers, laboratory facilities, and commercial repair services seeking high-quality thermal management solutions.

Thermally conductive RTV silicone adhesive, suitable for electrical and mechanical component bonding. Features a wide operating temperature range from -50°C to +220°C, offering excellent heat resistance. Single-part, non-corrosive formula cures on exposure to air moisture with a rapid, strong bond.

High-performance adhesion eliminates the need for welding and ensures effective heat dissipation. Compatible with metal and plastic surfaces, forming a tough weather and moisture-resistant rubber seal. Solvent-free, neutral cure technology reduces health and environmental risks.

Ideal for thermal coupling, heat sink bonding, potting, and sensor encapsulation tasks. Exhibits a specific gravity of 2.24 and high thermal conductivity at 1.55 W/mK. Explore more Industrial Adhesives from Acc Silicones and related thermal management solutions on EnvMart for your electronics, laboratory, and manufacturing needs.