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Working with Fiberglass Mat

Knowing how to use fiberglass mat could save you a fortune in repairs from an auto garage, such is the value of the material in repairing the bodywork of vehicles. The mat itself must be combined with other materials to be effective. The reason is that the combined materials produce certain binding qualities, which you do not get solely with the fiberglass mat. With these materials, you can create a customized patch that you can use to fill in damage done to your vehicle's bodywork.

Things You'll Need

Razor knife
Fiberglass mat
Cloth
Resin kit
Putty knife
Power sander

Instructions

- 1
  Use a razor knife to cut the fiberglass mat into the shape of the hole or surface that you will be filling. If the hole is deep, it will require multiple layers of fiberglass mat, bonded together with epoxy resin -- so cut numerous pieces.
- 2
  Clean the area that you will be applying the fiberglass to using a cloth and warm water. Any dirt or debris could obstruct the process.
- 3
  Mix together an epoxy resin mix, which you can buy from most hardware stores. Use a putty knife to spread the mix evenly around the hole. Create as close to a flat surface as possible.
- 4
  Place the fiberglass mat onto the resin mix; lay it flat to avoid any bubbles. Place another coat of the resin mix on top of the fiberglass mat. Repeat this step until the layering has succeeded in filling the hole. Allow the work to dry for at least an hour.
- 5
  Use a power sander to sand the surface to a flat, even repair job. You can use fine-grit sandpaper to perfect the surface afterward.

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