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

Wacker PDM Silanol Fluid

Wacker PDM Silanol Fluid is a premium silicone-based reactive silanol fluid from Wacker’s PDM series, featuring low viscosity, high reactivity, and excellent compatibility with silicones and resins. It serves as a key crosslinker and surface modifier in RTV-2, HTV silicone rubber, and functional coatings.
  • wacker pdm silanol fluid_f5b2b442
  • wacker pdm silanol fluid_f5b2b442

Features Of Wacker PDM Silanol Fluid

  1. Highly reactive, low-viscosity silanol functional fluid for efficient surface modification.

  2. Excellent compatibility with organic polymers and inorganic fillers, enabling uniform dispersion.

  3. Hydrolytically stable under controlled processing conditions, supporting consistent batch performance.

  4. Enables covalent bonding to silica, glass, metals, and other hydroxyl-rich substrates.

  5. Low volatility and non-volatile residue, supporting safer handling and reduced VOC emissions.

Typical Applications Of Wacker PDM Silanol Fluid

  1. Surface treatment of fumed and precipitated silica in silicone rubber compounding.

  2. Adhesion promotion in silicone-based sealants and RTV adhesives.

  3. Functionalization of glass fibers and mineral fillers for reinforced composites.

  4. Pre-treatment of metal and ceramic substrates prior to silicone coating or bonding.

  5. Stabilizer and coupling agent in solvent-based and high-solids silicone coatings.

Specifications Of Wacker PDM Silanol Fluid

Chemical TypeAlkylalkoxysilanol (predominantly methyltrimethoxysilanol oligomer)
Product FormClear, colorless to pale yellow liquid
AppearanceHomogeneous, low-viscosity fluid
Primary ApplicationsSurface modification, coupling, adhesion promotion
Key FeaturesSilanol functionality, hydrolytic stability, low volatility
BenefitsImproved filler dispersion, enhanced interfacial adhesion, reduced mixing energy
pH (10% aqueous solution)4.5–6.0
Storage ConditionsKeep tightly sealed; store at 5–30 °C, protect from moisture


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