Smaller sizes are fully braided as the larger sizes can if required be braided over a core to make manufacturing more economical.
Density of FGR is denoted by adding an S or H after the style (soft or hard core). FGR can be manufactured in either square or round profiles to suit applications.
The yarn will not support combustion or burn.It is unaffected by most dilute alkalis and acids.
Usual applications include boiler close up, lagging on pipe work, duct flange seals and expansion joints, crucible seals, hot air hoods.It is unaffected by weather or moisture.
