Spray Foam Rust Repair Car

Filling in vehicle rust holes with spray foam.

Spray foam rust repair car.

My approach s been to remove as much as possible with a wire brush drench it in rust converter coat it in paint or primer and fill the holes with 3x foam. My car s got a lot of rust holes. Here are a couple pics of the fender with cut away section. The expandable foam seems to have bonded well but i ve applied metal foil tape over the openning to further resist driving moisture in.

Big ones too big to even get good bondo over. Advanced and durable foams are used extensively in car manufacturing to control sound and vibration in a vehicle in addition to stiffening body panels and allowing bumpers to be much lighter and safer than they were in the past. Easy to cut and shape and fill afterwards and solid enough. So i ve cut away the main rust sanded and prime sealed the rest.

Buy paint and supplies. I ll let you know if this strategy fails miserably. Repair rocker panels with expanding foam great stuff and rubber i use expanding foam and rubber spray on rocker panel guard to fix up some rust hol. Filling in vehicle rust holes with spray foam.

It s not ideal but seems like the best option. Touch n seal fk 200 kits two component spray foam kit gun hose included 3 1 out of 5 stars 2. Boat repair foam rigid closed cell structural foam 2 gal kit 8 foam. Back to home why you shouldn t use expanding foam for diy auto body repair posted on 25 january 2018.