Masking a big gap in a automotive physique is important to stop additional harm from rust and water. There are just a few alternative ways to do that, relying on the scale and site of the outlet.
One frequent technique is to make use of a fiberglass restore package. These kits include every thing you could patch the outlet, together with fiberglass resin, fabric, and hardener. To make use of the package, merely clear the world across the gap, apply the resin to the material, after which press the material over the outlet. Enable the resin to treatment, after which sand and paint the world.