HB Body Pro Series Bodyfiber Polyester Filler Bridging Filler - 250gModel No. F250HB BODY 250 FIBRE GLASS FILLER 250GCar bridging filler is a type of automotive repair product used to fill in gaps and cracks in car body panels. It is a two-part epoxy that is mixed together and applied to the damaged area. The filler is then sanded down and painted over to create a smooth, seamless finish. It is often used to repair rust damage, dents, and other minor body damage.