Grafoil® Flexible Graphite Grades
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Grafoil® Flexible Graphite Specs

STYLE
GTA

GRADE GTA NUCLEAR GRADE:
A special grade having an extremely low ash content. Standard nuclear grade 99.5% graphite minimum. Certification of less than 50 ppm leachable chlorides will be furnished upon request. Contains no binders or resins.

STYLE
GTB

GRADE GTB INDUSTRIAL GRADE:
Our most popular style sheet. Recommended for gasketing applications up to 3000 degrees Fahrenheit in non-oxidizing atmospheres. Virtually all chemical services. 95% graphite minimum. 100 PPM leachable chloride maximum. Monolithic sheet, no binders or resins, mechanical bond.

STYLE GHE

GRADE GHE CORROSIVE SERVICE:
Metal inserted GTB sheet. Grafoil® sheets mechanically bonded to a .006" thick sheet of 316 SS which provides a stronger gasket for corrosive services. Available in 24" x 24" x .062" thick.

STYLE
GHG

GRADE GHG NON-CORROSIVE SERVICE:
Metal inserted GTB sheet. Grafoil® sheets are bonded to a .002" think sheet of carbon steel providing a stronger gasket for non-corrosive services.
Other Grades Available

GRADE GTK

A new corrosion and oxidation inhibiting packing and gasketing material. Grade GTK contains an inorganic passivating corrosion inhibitor, which is uniformly distributed throughout the product during its manufacture. This process eliminates localized "hot spots" of corrosion which can occur with impregnated or coated passivating and sacrificial inhibitors.

GRADE GHL

Uncured adhesive bonded laminate made from GTB.

GRADE GHB

Cured laminate sheet made from GTB

GRADE GHS

SS 316 wire mesh (screen) inserted and laminated GTB sheet adhesive bonded laminate. screen is 24 mesh (24 wire/inch)(.0075 screen) uncured.

GRADE GHR

SS 316 or 312 inserted laminate made of GTB. Insert .002 thickiness adhesive bond. Uncured.

GRADE GHQ

Aluminum insert .005 Tk. Laminate made of GTB material. Uncured.
Thread Sealant

STYLE
GTH

THREAD SEALANT TAPE: A self-adhesive, corrossion resistant all temperature Grafoil® tape thread sealant for pipe joints. available in .005" x 1/2" x 25' and .005" x 1" x 25'.

Grafoil ® Flexible Graphite Specs

GRAFOIL® is a registered trademark of GrafTech International Holdings Inc.