Stovebolt.com Forums The Parking Lot '60-'66 Trucks Expanding Foam

Never would have guessed that fluid film would deaden sound. Would be super easy to get it in places impossible to access with other products.

Took care of the ring, tinny sound, truck is much quieter. NO moisture issues. We use spray foam a lot in my trade, it is highly over rated.[/quote]



That being said I can easily build a flex hose (spray 360) for some undercoating to be sprayed into these areas. Once bonded it would not absorb moisture?

Yes, you can buy everything needed to spray it, a small hole in the doors and a plug . In the roof area we went in thru the rearview mirror hole and sunrises holes, about a three foot hose with 360 spray. I was impressed. I don't think there is anywhere you can't get it. It is impressive stuff.

I used ABESCO fire stop expanding foam to seal the openings between the engine compartment and the rear quarter panels on my VW beetle. That was 15 years ago and there is no evidence of rust and it is an effective seal. This foam has very little water absorption and is typically used to seal around ducts and electrical conduits in fire rated walls and floors. I'm not sure I would use it to completely fill a cavity but it expands to fill a large opening similar to Great Stuff. It is not the same as Great Stuff. The two part foam would be better if you need to fill a sizable cavity but I don't know about it's flammability.

Mark

Here in northeast Pennsylvania water absorption equals rust, why I used fluid film. Unexpected benefit was sound reading in those areas, roof, doors, box sides even hood area. My guy is a professional and I am very happy with the results. It even surprised him, I think I'm the only one that would a vehicle 50 plus years old and fluid film it.