Home/Applications/Long Fiber (LFT-G) Impregnation Application · Long Fiber & Composites Long Fiber (LFT-G) Impregnation: 20–60% Glass Long fibre is a pultrusion inside a die: the roving is opened, impregnated under pressure and cut without being chopped twice. Fibre length is set by the die, not by the screw. A reference lft-g impregnation page from Kerke. […]