Back to home why you shouldn t use expanding foam for diy auto body repair posted on 25 january 2018.
Spray foam rust repair.
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.
The rust accelerated at an amazing rate.
The foam expands and seals deterring moisture which can create mold and pests from eating through your walls.
Was not planning on keeping the van for very long so i went at it with the spray foam.
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.
It protects the lining of your house and can even assist in the heating and cooling of your house during those unbearably cold or hot days.
Filling in vehicle rust holes with spray foam.
Or you can do what you are doing and keep the vehicle going for quite a while.
To fix it 100 the rust needs to be cut out and the metal replaced.