Specifications for base fabric

Specialty Fabrics Review | July 2010

Compiled by Juli Case

Our company makes fabric structures, and we’ve noticed that, in some fabric specifications, the fabric manufacturer will use “EC3,” “EC6,” or “EC9” to describe the base fabric. What is this?

Upon discovering that the fabric in question was PTFE-coated fiberglass, we were able to clear this mystery up. This abbreviation is a description of the fiberglass that is used in the base fabric. The E indicates that electrical grade glass filament fiber was used. The C indicates that it is a continuous, unbroken filament fiber. Finally, the number (3, 6, or 9) is the diameter of the fiber, measured in microns.

Juli Case is IFAI's information and technical services manager.

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