Gelest Inc. is recognized worldwide as a leader and innovator in the science and technology of materials.

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From 1991, Gelest, Inc., headquartered in Morrisville, Pennsylvania, is recognized worldwide as an innovator, manufacturer and supplier of commercial and research quantities of organosilicon compounds, metal-organic compounds and silicones

Gelest serves advanced technology markets through a materials science-driven approach. 

The company provides focused technical development and application support for semiconductors, optical materials, pharmaceutical synthesis, diagnostics and separation science, and specialty polymeric materials:

“Gelest – Enabling Your Technology.”

Reactors :
          - 30L to 100L all glass with process control
          - 50 – 500 gallon glass lined -10 to 200C
          - High Pressure to 400 gallon 1000psi
Distillation :
          - 5 – 300 gallon 40 plate
Continuous :
          - Hydrosilylation
          - Polymerization
          - High Pressure 350psi
Solids Handling :
          - Hastelloy filter and vacuum tumble dryer


Gram to Multi-ton Manufacture
          - Hydrosilylation
          - Esterification
          - Direct Process
          - Reduction
          - Grignard
          - Polymerization
          - High Pressure Reactions


11 East Steel Road

Morrisville, PA 19067