Easy to cut and shape and fill afterwards and solid enough.
Spray foam rust repair car.
Back to home why you shouldn t use expanding foam for diy auto body repair posted on 25 january 2018.
Buy paint and supplies.
Here are a couple pics of the fender with cut away section.
It s not ideal but seems like the best option.
Filling in vehicle rust holes with spray foam.
Boat repair foam rigid closed cell structural foam 2 gal kit 8 foam.
My car s got a lot of rust holes.
The expandable foam seems to have bonded well but i ve applied metal foil tape over the openning to further resist driving moisture in.
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.
So i ve cut away the main rust sanded and prime sealed the rest.
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.
Big ones too big to even get good bondo over.
Touch n seal fk 200 kits two component spray foam kit gun hose included 3 1 out of 5 stars 2.
Matcc car snow brush removal extendable with ice scraper and foam grip detachable snow mover for car auto suv truck windshield windows model msb002.
I ll let you know if this strategy fails miserably.
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.