Hi guys: I am wanting to line floor pans with new sound/heat deadening material after POR-15 treatments. As opposed to Dynamat, are there other alternative suppliers that make a product of similar performance at less cost? I really don't want to pay the brand name fees, if you know what I mean. Suggestions and sources welcomed. Thanks! Chris
Check out this thread from 71gold...looks like some pretty good stuff and you can get it at Lowes. http://mmb.maverick.to/showthread.php?t=45479&highlight=lowes
I used the same, or similar stuff. When you go to Lowe's, look for a roll of what looks like bubble wrap with aluminum foil on both sides. It was like 20 per roll, I used 2 in the car, 1 more behind the back seat and in the trunk.
I used Dynomat I used dynomat in mine and yes it was exspensive. I drove it home and what a difference it made. Even with bad rubber seals the car was so much quieter. It sounded as if I had gotten into another car. I will check at work and see if there is a good alt.
mine is so quite that now i have to chase down some...wind noise. (i think it's a vent window seal). ......
FatMat has also been tried here, and is quit abit less than dynomat. i think ebay is the cheapest place to get it
I read an article in Muscle Car Review about insulating older cars. They used Dynamat, but I was surprised in the way that they used it. The article described the straight flat areas of your car as being similar to the skin on a drum. The longer the span, the more noise resonates from the drum. They used strips to cut down on the cost. They did not cover the entire floorpan, firewall, hood, roofline(under the headliner). They just used strips to cut down the noise waves. Looking at the pictures, I would say 50-60% of the bare metal was covered. They stressed to use it in the straight flat areas. On top of that, they used the aluminum backed fiber padding for more of a noise and insulation barrier. Seth
Dynomat Mine is installed in squares and strips. There aren't any solid pieces anywhere on the floors, or in the doors. That alone will cut down in cost. Also Dynomat is heavy and dense. I wouldn't want to line the whole car with it, I would have to beef up the supension.
I also used the same stuff as 71gold and im impressed with it. i'll have some pictures up this weekend with the rest of my progress that ive been working on... quietly
go to Lowe's, visit the roofing section and it's called "Flashing" (normally used around chimnies, seams and such when roofing). it comes in a 6"x25' roll and has the aluminum backing. it's like $14.99 a roll. i bought 4 rolls, done my entire floor and doubled the layers over my firewall and trans hump and still have almost a whole roll left. well worth the money