Spray Foam Rust Repair Car

My car s got a lot of rust holes.

Spray foam rust repair car.

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. Touch n seal fk 200 kits two component spray foam kit gun hose included 3 1 out of 5 stars 2. Big ones too big to even get good bondo over. Back to home why you shouldn t use expanding foam for diy auto body repair posted on 25 january 2018.

I ll let you know if this strategy fails miserably. So i ve cut away the main rust sanded and prime sealed the rest. Rust repair isn t hard but it is time consuming mostly waiting for primer and paint to dry between steps. Filling in vehicle rust holes with spray foam.

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. 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. Filling in vehicle rust holes with spray foam.

It s not ideal but seems like the best option. Plan to spend about 100 on supplies like sandpaper primer masking tape and poly sheeting a tack rag polishing compound and touch up paint and clear coat. Easy to cut and shape and fill afterwards and solid enough. Buy paint and supplies.