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

Solvay CYPHOS IL 169 Phosphonium Salt Curing Agent

Solvay CYPHOS IL 169 is a phosphonium salt-based curing agent from the CYPHOS IL series, designed for high-performance epoxy resin systems. It enables low-temperature curing, excellent thermal stability, and superior electrical insulation. Widely used in aerospace composites, electronics encapsulation, and advanced adhesives where precise reactivity and reliability are critical.
  • solvay cyphos il 169 phosphonium salt curing agent_b4ddb586
  • solvay cyphos il 169 phosphonium salt curing agent_b4ddb586

Features Of Solvay CYPHOS IL 169 Phosphonium Salt Curing Agent

  1. Highly efficient cationic initiator for epoxy and vinyl ether resins under ambient or mild thermal conditions.

  2. Excellent thermal stability with onset decomposition temperature above 200 °C.

  3. Low volatility and negligible vapor pressure, enhancing workplace safety and formulation handling.

  4. Superior compatibility with a broad range of epoxy monomers and oligomers, including bisphenol-A and novolac epoxies.

  5. Non-hygroscopic solid form ensuring long-term storage stability without refrigeration.

Typical Applications Of Solvay CYPHOS IL 169 Phosphonium Salt Curing Agent

  1. UV-curable and dual-cure (UV/thermal) coatings for industrial metal and plastic substrates.

  2. High-performance encapsulants and potting compounds in electronics and power module manufacturing.

  3. Adhesives for aerospace composites requiring low outgassing and high glass transition temperature (Tg).

  4. Electrical insulation varnishes and impregnating resins for motors, transformers, and generators.

Specifications Of Solvay CYPHOS IL 169 Phosphonium Salt Curing Agent

Chemical TypeTriarylphosphonium hexafluorophosphate salt
Product FormFree-flowing crystalline powder
AppearanceWhite to off-white solid
Primary ApplicationsCationic curing agent for epoxy, vinyl ether, and oxetane-based systems
Key FeaturesThermal latent, UV-initiated, non-nucleophilic, low migration
BenefitsExtended pot life, rapid cure kinetics, high crosslink density, excellent dielectric properties
Storage ConditionsStore in original sealed container at 5–25 °C, protect from moisture
Shelf Life24 months from date of manufacture under recommended storage conditions


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