To check that it s smooth wet the primer and look at the way light reflects off the surface.
How to fix a hole in the floor of my car.
Or less holes in steel aluminum fiberglass and plastic body panels while minimizing sanding damage and the amount of required surface preparation.
Apply several layers of primer sanding each layer with a sanding block until the area appears perfectly smooth.
With the floor exposed my first action was to grab my trusty 19 95 10 plus year old harbor freight 4 1 2 inch electric grinder one of five which have paid for themselves countless times.
How to fix hole in car floor.
To repair this hole correctly you must first cut away any rusted or thin metal surrounding the hole so that you have a good surface to weld a patch.
The wax paper is going to serve as the start of your fibreglass patch.
You can use primer as a last layer of filler to fill tiny holes or irregularities.
Allow the resin to harden for about 12 hours.
Place it over the hole so the hole itself is near the centre of the paper.
Use one or two pieces of masking tape to secure the wax paper over the hole.
Cut out the rust.
Place a fiberglass sheet over the resin.
Used some body sealer from auto parts store or in a pinch silicone sealer will work.
The eastwood no weld hole repair kit provides a quick weld free solution to plugging 2 inch dia.
Apply a second layer of resin over the top of the fiberglass sheet.
Assuming the holes are not impairing the structural integrity of the vehicle then it is probably safe repairing it with just fibreglass without going near a welder.
There is hole in car floor and how to add plate to hole.
Brush some fiberglass resin around the edges of the holes.
Using a grinder with a cutting wheel cut away the rust or thin metal in as uniform a shape as possible so your patch looks professional.
If you can avoid it don t take it to a mechanic take it to a metal working shop in your area.
Clean the area around the hole with a wire wheel prime it and then cover that with some spray enamel.