Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Wacker WACKER CATALYST EM440 Catalyst

Wacker WACKER CATALYST EM440 Catalyst is a platinum-based hydrosilylation catalyst from Wacker’s EM series, designed for efficient silicone curing and functionalization. It offers high activity, excellent thermal stability, and precise reaction control in liquid silicone rubber and specialty polymer applications. Widely used in medical-grade silicones and automotive sealants, EM440 ensures consistent performance and low residual metal content.
  • wacker wacker catalyst em440 catalyst_9e442f78
  • wacker wacker catalyst em440 catalyst_9e442f78

Features Of Wacker WACKER CATALYST EM440 Catalyst

  1. Highly selective palladium-based heterogeneous catalyst for efficient hydrosilylation reactions.

  2. Thermally stable up to 180 °C, enabling robust performance in continuous-process industrial reactors.

  3. Low metal leaching (<0.5 ppm Pd) ensures product purity and reduces downstream purification costs.

  4. Consistent batch-to-batch reproducibility supported by WACKER’s certified quality control system.

  5. Designed for easy handling and integration into existing silicone and specialty chemical production lines.

Typical Applications Of Wacker WACKER CATALYST EM440 Catalyst

  1. Production of functional silicones, including vinyl-functional siloxanes and silane coupling agents.

  2. Hydrosilylation of olefins for silicone surfactants and emulsifiers used in personal care formulations.

  3. Synthesis of silicone-modified polymers for high-performance coatings and adhesives.

  4. Manufacturing of platinum-free silicone elastomers requiring precise crosslinking control.

  5. Catalytic synthesis of organosilicon intermediates in pharmaceutical and agrochemical fine chemical processes.

Specifications Of Wacker WACKER CATALYST EM440 Catalyst

Chemical TypePalladium on activated carbon support
Product FormFree-flowing black granular solid
AppearanceBlack granules, non-dusting
Palladium Content0.5 wt% ± 0.05 wt%
Moisture Content≤ 1.0 wt%
Particle Size Range0.5–2.0 mm
Storage ConditionStore under inert atmosphere at 5–25 °C, protected from moisture and light
Primary ApplicationsHydrosilylation, silicone functionalization, specialty organosilicon synthesis


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