How to Repair a Vinyl Fence
Wipe the area down with a damp towel to remove any dirt and debris that is around or at the edge of the hole.
Sand a 2" area around the hole with the medium grit sandpaper.
Determine if you will need the expanding insulation foam. You will use this if the hole is larger than 1 1/2" in diameter. Anything smaller doesn't need the foam, so you can skip to Step 8.
Spray the expanding foam into the hole. Do this slowly to allow the foam to expand and take hold on the inside of the fence. Fill it until there is a little foam oozing from the hole.
Allow the expanding insulation foam to dry overnight.
Saw away the excess foam that has dried outside of the hole.
Sand the remainder down with the medium grit sandpaper to make a slight divot in the fence. You don't want it flush because you will be placing the plastic filler in that will need to be flush.
Wipe away any dust or debris with a damp towel.
Fill the hole with the plastic body filler. Allow this to dry for an hour.
Sand the body filler with the medium, and then the fine grit sandpaper to make the plastic filler flush to the fence surface.
Wipe away any dust.
Paint to match.