The term "fiberglass" refers to a composite material that contains polyester resins reinforced with glass fiber. "Body filler" means a plastic putty made from polyester resins and filler.
Compatibility
Generally, fiberglass covers the damaged area and body filler creates a smooth surface. Used together, such as in boat repair, body filler goes over fiberglass or directly onto the damaged area.
Adhesion
Fiberglass and body filler adhere mechanically to the underlying surface, which is roughened to allow the fiberglass or filler to grip it. In some cases, after drilling holes into the surface area, the user squeezes the filler into the holes. The filler grips the edges of the holes, which helps the filler to stick to the surface. A polyester resin gelcoat adheres well to either fiberglass or filler.
Finishing
Body filler usually covers fiberglass, as the fibers in the fiberglass won't give a smooth surface. Users can smoothly sand body filler and use repeated applications of it to sculpt surface shapes such as hull curves or gunwale edges, before applying the gelcoat for a glossy finish.
0 comments:
Post a Comment