FCF Code System FCF products use a 4 digit code system (e.g. 04-08) sometimes followed by individual letters to denote product variants. Closed Weave Glass Fabrics The first two digits represent the following: 05=The top quality, highest PTFE content 04=The standard level of quality and PTFE content 03=The economy level with lower PTFE content 02=The porous range of fabrics The next two digits are the nominal thickness in mm. For example 05-08 is the top quality 0.08mm (0.003 thou) thick plain fabric. Belting Fabrics - closed weave and open mesh, glass, aramid and glass/aramid combinations The first two digits represent the following : 06=Closed Weave Glass grades 07= Open Mesh Glass grades 08=Closed Weave Aramid grades 09= Open Mesh Aramid grades 10=Aramid/Glass Open Mesh grades The next two digits are the nominal thickness in mm. For example 07-95 is an open mesh glass fabric with a nominal thickness of 0.95mm. Additional Variant Classifications C =Conductive CT=Conductive with Topcoat S =Silicone adhesive one side with release liner TR=Tear Resistant FGS=Food Grade Sparkle