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G10/FR4 is a thermo-laminated glass epoxy material mostly used in electrical applications where high heat, mechanical stability and electrically isolative conditions are needed.  The phenolic fiberglass sheet is stable up to 285 F making it ideal for high temp applications where electrical conditions cause high heat.  phenolic also has a very low water absorption rate.  In addition to the G10-Fr4 materials being mechanically and electrically stable, the g10 /fr4 panels, once machined into parts, hold very tight and crisp features.  The phenolic material can continue to operate at maximum efficiencies for a relatively long time while holding its shape and size.   phenolic can be used as terminal boards, insulators and is a great laminate composite for high moisture environments.


Cryogenic g10 material is used in applications where out gassing and low temperatures are a concern.  The Cryogenic g10 sheets boast a low temperature of  160 degrees Kelvin.  Cryogenic g10-cr plates are typically used in space or vacuum applications.  The fact that g10 cryogenic does not outgas and has the ability to stand lower temperatures while remaining mechanically and thermally stable makes the Cryogenic G10 boards ideal for thermal neck rings in Nitrogen cryogenic vessels. 

GRADE CE PHENOLIC  can also be used in pipe saddles, medical instruments and robotics for underwater ROVs or robotic applications in space.  Our G10 CR material is of the highest quality and has shelf life of more than 3 years if stored properly.  The specifications for the G10 Cryogenic materials are located on this page.  As with all of our other g10 materials, we can machine and fabricate to specific drawings for a complete cryo g10 turnkey solution.


Phenolic Rods are available in 3 Inch diameter down to .062 inch diameter.  The phenolic rod material is ground down with precision machines to me t very high tolerance standards.  The   G10 Rod also exhibits a high temperature rating of 140 Degrees C and absorbs less than .01% moisture if totally submerged in water.  In addition to the low water absorption, G10/Fr4 rods have amazing structural integrity and mechanical stability when machined or fabricated.  phenolic rod carries a very high dielectric strength making it an excellent choice for high voltage applications.  G10 rods can also be threaded to make a fiberglass bolt for use in electronic enclosures.  G10 Rod is suitable to be used in environments where mild to some strong chemicals are present.  Phenolic rods can withstand petroleum based products and has a great chemical resistance to MEK, Acetone and other high concentrate chemicals.  A chemical resistance chart for Phenolic is listed on our Phenolic Properties page located here.PHENOLICO


We have the ability to machine Phenolic in a wide range of shapes and sizes.   We also have the ability to machine and fabricate phenolic washers, phenolic spacers, phenolic sleeves, G10 bushings, Phenolic enclosures and many other "standard" shapes and sizes.  Our extensive line of measuring and quality assurance procedures allow us to do a quick turn on g10 materials in a relatively short amount of time while maintaining the highest standards of quality.  Send us your drawings today to receive a quote on your phenolic fabricated drawing requirements.

Some other terms most commonly used for Phenolic :  fr4 laminate, Phenolic epoxy, Phenolic terminal boards, phenolic insulator,  phenolic composite, phenolic plate, phenolic machining, phenolic fiberglass, phenolic panel, phenolic NEMA grade.

RUBBER MAT MANTM PO BOX 171 ◘ SHIPPENSBURG, PA 17257 ◘ PH: 866.832.6006  RUBBER SHEET ROLL  2002-2015