Phone: (716) 759-3080 E-Mail: GPlast@SealAndDesign.com
Because GPlast™ components withstand a broad spectrum of chemicals and temperatures, they perform well in an array of applications, including: chemical and refining, biotechnology, oil and gas production, power generation, paints, lacquers, and adhesives, and FDA compliant applications.

General GPlast™ Characteristics
- Designed for superior chemical resistance.
- Can be molded into a variety of o-ring shapes and thicknesses.
- Works well in a wide variety of applications.
- Costs less than Kalrez™ and Chemraz™ while offering comparable sealing capabilies.
GPlast Materials at a Glance
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GPlast™ Standard Compounds
These materials provide excellent temperature resistance up to 500°F(260°C) and have similar chemical resistance to that of PTFE but with elastomeric properties comparable to standard fluorocarbon rubbers. Along with all our GPlast™ range, this grade is suitable for use in a wide range of applications where other polymers are not suitable.
Compound 260B 260W Shore A
Hardness75 Temperature
Range5°F to 500°F
(-15°C to 260°C)Color Black White -
GPlast™ High Temperature Service Compounds
These materials were developed for high service temperatures while offering superior chemical resistance.
Compounds in this group include the following:
300B High Temp Hot Water / Steam, 300W Ultra Pure White, 316B High Temperature, 330B Ultra High Temperature.Compound 300W 300B 316B 330B Shore A
Hardness70 75 Temperature
Range5°F to 572°F
(-15°C to 300°C)5°F to 600°F
(-15°C to 316°C)5°F to 626°F
(-15°C to 330°C)Color White Black -
GPlast™ FDA Compounds / Pharmeceutical Compounds
These materials have a wide temperature service range and have similar chemical resistance to that of PTFE but with elastomeric properties comparable to standar fluorocarbon rubbers.
641W & 642B are specially developed to comply with the requirements of FDA 21 CFR 177.2600.
643USP meets the requirements of USP Class IV.Compound 641W FDA 642B FDA 643 USP Shore A
Hardness75 Temperature
Range5°F to 500°F
(-15°C to 260°C)14°F to 446°F
(-10°C to 230°C)Color White Black White -
GPlast™ Low Temperature
This Black low temperature material provides an excellent temperature range from -40°F (-40°°C) up to 500°F (240°C) and has similar chemical resistance to that of PTFE but with elastomeric properties comparable to standard fluorocarbon rubbers.
Compound LT-40 Shore A
Hardness75 Temperature
Range-40°F to 500°F
(-40°C to 240°C)Color Black -
GPlast™ Oil and Gas AED Resistant
These compounds were developed for a wide temperature service range and specifically to be oil and gas explosive decompression resistant.
Compound ED105 T128
NORSOK M-710300B AED 316B AED
ResistantShore A
Hardness90 Temperature
Range5°F to 500°F
(-15°C to 260°C)-40°F to 450°F
(-40°C to 230°C)5°F to 572°F
(-15°C to 300°C)5°F to 600°F
(-15°C to 316°C)Color Black
Contact Seal & Design Inc. for more information about our GPlast™ O-Ring offerings or for more information about other o-ring compounds visit Seal & Design's O-Ring Compounds page.