Custom Materials

Sometimes custom parts or fabrication services require a custom material.  KLINGER IGI stocks and sources a wide variety of standard and specialty materials for product design and production.

Customization ranges from simple things like special sheet or roll sizes to more complex things like bonding of dissimilar materials using specialty adhesives or sourcing special compositions of a particular material. Common specialty materials for product design and production of custom parts include (see list below):

Specialty Materials for Product Design and Production | KLINGER IGI


Offers the lightness of silicone foams plus the improved sealing capabilities of sponge rubber in a FDA and aerospace compliant solution that has excellent memory, low stress relaxation, and resistance to UV, ozone, and extreme temperatures and flame.


Excellent in applications that require resistance to oils or aromatic fuels. (-40°F to 200°F)


Maintains good resistance to gas permeation, acids, alkalies and ozone at moderate temperatures. (0°F to 325°F)

Cloth Inserted Rubber

Sometimes used in air, hot and cold water, saturated and low pressure steam and hydraulic services. (-20°F to 170°F)

Compressed Non-Asbestos Fiber (CNAF) Materials

CNAF is a unique blend of synthetic fibers and rubber binders. These offer superior seal-ability and creep relaxation. These materials are highly flexible in applications since they perform throughout a wide range of temperatures.


Found in oil and weather exposed applications. Cork accommodates to mold or flange growth and will conform very well to minor surface irregularities. Cork is often combined with rubber to handle automotive and other assembly line applications. (Temperatures vary with fillers).

EPDM (Ethylene Propylene Diene Monomer)

Recognized for excellent ozone, chemical and aging characteristics. EPDM features high tensile strength and high heat resistance and is good with low temperature properties. It's resistant to ketones, ester-based solvents and some hydraulic oils. It can have poor resistance to petroleum based fluids and mineral oils.

Expanded PTFE (Teflon®)

Sheet gasket material made from bi-axially oriented expanded PTFE sheeting that is laminated to the required thickness. Expanded PTFE is much softer and more flexible than regular PTFE sheet and thus conforms easily to irregular and rough surfaces. E-PTFE seals rough and irregular surfaces and is easier to compress while minimizing creep and cold flow.


Comes in a variety of thicknesses and varying grades, and is routinely used for dust washers, isolation pads, weather strips, cushions, and more.

Filled PTFE

Known as modified Teflon®. The addition of fillers like glass fiber, carbon, bronze or graphite and others, in the form of powder mixed with the PTFE improves or modifies its properties depending upon the nature and quantity of filler. However, filled PTFE is often not as strong and resilient as virgin PTFE. The filler limits the resistance to chemical agents and the electrical properties.

Flexible Graphite

Natural graphite, but in a unique form.  Graphite is combined with a core made of steel tang, steel wire, aluminum or Mylar®. This core gives the graphite material superior flexibility while allowing it to handle extreme temperatures and pressures. This material also has excellent compressibility and permeability characteristics. (-328°F to 850°F {atmosphere} 1200° F {steam})


Often used for a wide range of gaskets, pads, and strips. Neoprene has a greater resistance than most rubbers to oils, light and heat. (-20°F to 190°)


This high density, open-celled, sponge-like urethane offers excellent compression set resistance, high energy absorption, and is useful in a wide variety of sealing and manufacturing applications.

Red Rubber

Suitable against hot and cold water, air and low to medium saturated steam pressure. (-40°F to 180 °F)


Recommended for high temperature, acidic, caustic and dielectric applications. Silicone offers outstanding resistance to high and low temperatures, chemical deterioration, oils and ozone breakdown. (-120°F to 500°F)


Frequently used for gaskets, strips, vibration pads, air and water tight door seals, various cut parts, and more. (Temperatures vary by type of sponge.)


A textured fiberglass cloth, its dielectric qualities are outstanding. Available in tape and sheet form. (Up to 1000°F)


Unsurpassed for service in oils, fuels, solvents and many other chemicals. (-10°F to 500°F)

White FDA Rubber

Used in all food processing and by manufacturers of pharmaceutical and cosmetic products. (-25°F to 200°F)

Certification is available for materials which require military, federal, or AMS specification