Nanjing SiSiB Silicones Co., Ltd.
Nanjing SiSiB Silicones Co., Ltd.
SiSiB® PC4100
SiSiB® PC4100


SiSiB® PC4100 is a methacryl-functional silane; it is a clear, light and heat sensitive liquid with a faintly sweet odour. It is equal to Momentive's A-174, Dow's Z-6030, Wacker's GF31, Evonik's Dynasylan MEMO, ShinEtsu's KBM-503.

SiSiB® PC4100 acyl silane is used as adhesion promoter at organic/inorgainc interfaces, as surface modifier (e.g. imparting water repellency, organophilic surface adjustment) or as crosslinking of polymers). It is used as a coupling agent to improve the physical and electrical properties of glass-reinforced and mineral-filled thermosetting resins under exposure to heat and/or moisture. 

It is typically employed as a blend additive in resin systems that cure via a free radical mechanism (e.g. polyester, acrylic) and in filled or reinforced thermoplastic silicon based polymers, including polyolefins and polyurethanes. It is also used to functionalize resins via radical initiated processes - copolymerization or grafting - and to modify surfaces.

SiSiB® PC4100

Technical Data







Molecular Weight


Viscosity 25°C

2 cSt

Boiling Point

255°C [760mmHg]

Flash Point


Color and Appearance

Colorless transparent liquid

Density 25/25°C


Refractive Index

1.430 [25°C]

Min. Purity


Solubility: SiSiB® PC4100 is soluble in methanol, ethanol, isopropanol, acetone, benzene, toluene, and xylene. After hydrolysis, it is soluble in water with adequate stirring if the pH is adjusted to 4.0. Hydrolysis releases methanol.

SiSiB® PC4100 methacryloxypropyltrimethoxysilane shows copolymerization or grafting reactions when catalyzed by (organic) initiator systems, e.g. peroxides or by radiation (e.g. UV).


  • SiSiB® PC4100 3-methacryloxypropyltrimethoxysilane, MEMO silane, can improve strength as glass fiber size composite in reinforced polyester composites.

  • SiSiB® PC4100, the high quality silicone silane, can enhance initial and wet strength of reinforced polyester resin composites.

  • SiSiB® PC4100 can enhance the wet electrical properties of many mineral-filled and reinforced composites.

  • SiSiB® PC4100 crosslinked acrylic type resins can improve adhesion and durability of adhesives and coatings.

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SiSiB® PC4100