what is the best way to remove sound deading floor plan
#6
Dry ice works really well, bust it up the pieces, spread it out, and let it sit for 10 min. Then it will just pop right up in big chunks when tapped with a screwdriver. It's a lot cleaner and looks a lot better if you don't have any carpet in the car. Some cars have a ton of sound deadening and you can really lose some weight, but in a Miata it's really minimal. It's just couple pounds infront of each seat and in the trunk.
#14
Per internet suggestions, I tried dry ice in an E36 BMW with a ton of sound deadener. It worked, but it took a lot more than a simple "tap with a screwdriver." I tried to go as light as I could, but I ended up with little dents in the floorpan from each tap of the screwdriver/hammer.
I switched to a heat gun after the first small test of the dry ice method, and the heat gun worked much better. Was more time consuming since you couldn't work on something else while the dry ice did it's job, but it didn't take much heat for the stuff to just peel right up with a gentle screwdriver pry. Goo-gone afterwards to take care of the leftover adhesive and you got a perfect, bare floorpan. I'll definitely use the heat gun method in the future.
Of course that was on a BMW, so I make no guarantees that this method will work as well on a miata.
I switched to a heat gun after the first small test of the dry ice method, and the heat gun worked much better. Was more time consuming since you couldn't work on something else while the dry ice did it's job, but it didn't take much heat for the stuff to just peel right up with a gentle screwdriver pry. Goo-gone afterwards to take care of the leftover adhesive and you got a perfect, bare floorpan. I'll definitely use the heat gun method in the future.
Of course that was on a BMW, so I make no guarantees that this method will work as well on a miata.
#16
I never tried dry ice, but have used a heat gun with much success.
Also, I like to use old wood chisels to scrape coatings off. Different sizes makes it easy to cut out the coating in knooks and crannies. Sharper the better. In areas where you can't us a heat gun, soaking the undercoating in a solvent of your choice also seems to make it easier.
Also, I like to use old wood chisels to scrape coatings off. Different sizes makes it easy to cut out the coating in knooks and crannies. Sharper the better. In areas where you can't us a heat gun, soaking the undercoating in a solvent of your choice also seems to make it easier.
#19
Seriously the dry ice works, I wouldn't mess with the potential mess of heating it up. I did it in my old civic and after a good ten min all I had to do was hit it with a mallet and it would all shatter and just pick up the pieces. I never had to deal with chiseling it away and I did the entire car. Most of the effort is waiting on the sheet to get cold.
#20
I find that different cars like different things. Ford sound deadener laughs at dry ice, but a little careful heat gun action makes it scrape right up. Honda sound deadener on the other hand, prefers cold and solvents followed by sanding the residue off with Scotchbrite and ~400 grit sandpaper. I've never tried to pull up Mazda sound deadener, but try a few different things before you relegate yourself to a year of fighting the wrong method.