GP-219 Silicone Polyol Copolymer

Request a Quote

Price is dependant on quantity, please request a quote for more information. If you are interested in samples, please refer to our sample price policy.


GP-219 is a 100% active polyoxyethylene modified dimethylpolysiloxane block copolymer. GP-219 is not water soluble because of the low content of polyoxyethylene in the copolymer. GP-219 contains no reactive functional groups and is chemically inert. The silicone and polyoxyethylene block polymer components of GP-219 are joined through Silicon to Carbon bonds, insuring resistance to breakdown through hydrolysis. Some of the special properties of GP-219 are listed below:


  • Low Surface Tension
  • Excellent Lubricity
  • Chemically Inert
  • Non-Hydrolyzable
Typical Properties
Clear to Hazy, Colorless to Straw Liquid
Weight/Gallon @ 25°C
9.2 lbs
Viscosity (cPs) @ 25°C
440 cP
Flash Point (P.M.C.C.)
Specific Gravity
Wt. % Active
Wt. % Silicone
Molecular Weight (Calculated)
6500 amu
Polyol Type
Polyoxyethylene (EO)
Solubility in Water
Melting Point
65 °F


The indicated value of HLB (Hydrophile/Lipophile Balance) of 8.4 suggests use of GP-219 as an emulsifier for water in oil emulsions (w/o), or as a pigment dispersant for thermoplastics or solvent-based coatings. Other applications include the following:

  • Wetting Agent
  • Leveling and Flow Control Agent
  • Thread Lubricant

Processing and Safety Guidelines

GP-219 has a very low order of toxicity, but should still be handled with all precautions common to the use of any industrial chemical product. Consult Safety Data Sheet for additional details.


GP-219 is supplied in 5-gallon (40 lbs.) pails, 55-gallon (460 lbs.) drums and 330-gallon (2760 lbs.) totes. Moisture Sensitive. Keep containers tightly sealed. Store below 100° F.