How To Fix Pin Holes In Floor Pans

This is most common for older cars.

How to fix pin holes in floor pans.

I would recommend cleaning away the rust with a drill mounted wire brush though rather than grinding because that removes the rust from the surface and pits but doesn t thin out the floorpan. This transforms the flexible fiberglass into a rock solid chunk of rust proof flooring. The previous owner had chosen to ignore the small rust holes and just roll a coating of some sort possibly truck bed coating over the front half of the floor and called it a day. If they are few and far between the quickest way to fix pinholes in your floor pans is applying a sealer like por 15.

Floor pans are the base metal layer of a vehicle s floor that everything else rests on. Pin holes everyone s got em. One of the best ways to patch the holes is with fiberglass sheeting. This is a permanent repair though it s not advisable to consider this a fix for those fred flintstone floorpans where there s more open air than sheetmetal.

The rest of the pan was fine and in some cases its not worth it to replace the pan just for a few holes. What i did was paint the entire floor on the inside of the car with por15. Do some searching on it as its harzardous stuff but it really stops rust if you have the metal prepped right. Fiberglass is by far the best non welding fix for pinholes and other small holes.

See all 24. However sometimes it is necessary to repair holes in the bottom of the floor pan.