I use Koolmat for firewall, trans tunnel and front floor insulation - Koolmat is expensive but worth every penny. I use Fat Mat for the rest. I cannot stress enough the importance of good insulation if you are going to drive more than short distances - sound dampening will also make your ride more enjoyable. This is one area where the investment during the build stage really pays off. A word of caution - always check for flammability before purchasing insulation - you don't want yourself and your car to be barbecued in the event of a fire....
http://www.secondskinaudio.com/index.php Not the cheapest on the market, but it's my preference. Mostly because they offer such a wide varity of products from CDL vibration dampers, mass loaded vinyl, temp. insulation, and spray on application. Just to clearify, products like dynamat are vibration control products, not nessecerily sound dampeners. They prevent structural born vibrations like panel resonance. MVL (mass loaded vinyl) is the best way to block air born noise like road and exhaust drone. Check out the Luxury Liner. Of coarse I'm coming from a car audio back ground. Were sound quality is the primary objective, when creating a completely "dead" sound stage. And it usually involves alot of overkill, so this stuff might not be for everyone.
i have never used any. after reading this im still on the fence with what the best is. but i do plan on using something on the inside. alot of it. and i was thinking both the heat and sound lizard skin on the bottom of the cab. thougts?
They do sell a product in the roofing section that is asphalt based, but not foil backed. The stuff I got is a dense gray foam, (no asphalt) and foil backed. In my car all summer and no smell whatsoever.
does anyone have the link to thread where a HAMBer did a real world evaluation of all the diffferent products?
I have sold/used/installed Dynamat for over 20 years but the price just keeps going up. I switched to Stinger Roadkill Expert and have been pleased so far. Deadener is not all about weight but a bulk pack of Roadkill Expert weighs 28% more than a bulk pack of Dynamat Xtreme (both 36sqft). Both are butyl based, do not stink, do not require heat to install unlike inferior asphalt based products, and they are as much as 4 times more effective than asphalt mats. They will remain bonded to vertical panels or the roof when installed correctly unlike that garbage Fat Mat. They also offer vinyl/foam underlayment that works great. I use the Roadkill Carpet Pad and love it. Quality rollers can be purchased from www.marshalltown.com I recommend #19571. The rollers from Dynamat, Metra, and Stinger are weak.
This was all I could find...but it looks as thou the write-up has been recently revised to only reflect his opinions about the products he's now selling, as opposed to other comercially available products that had been evaluated. http://www.jalopyjournal.com/forum/showthread.php?t=132738&highlight=dynamat At the bottom of the page is good desription, by elpolocko, on using very affordable foil backed water heater blankets, from Home Depot, seamed together with foil tape. A repost of the same link mentioned waiting for "Kirk" to finish a head to head test write-up. I'm not sure if they ment KIRK! or someone actually named Kirk. The thread was last bumped in '08. Searched, but couldn't find anymore mention of it, just 11 pages of people asking the same questions about alternatives to Dynamat.
i have been looking and thinking about a good and cheap way to cut down on the sound in the cab of my 27 chevy pickup. i looked at dynamat and the asphalt <NOBR>roofing</NOBR> sheets some folks have used. i have four demands of whatever i use 1 super cheap 2 it cant soften in the brutal heat of the southwestern u.s. 3 it cant stink 4 it needs to actually work it is my understanding that the sound deadening is achieved by cutting down on the harmonic vibrations of the sheet steel (among other things) then i had a brainstorm. last year i repaired a mobile home roof with a rubber based patching material that dries into a fairly hard but flexible rubber (think <NOBR>tennis shoe</NOBR> sole)that doesnt melt in the sun. it is applied with a trowel. so i am going to use this stuff. i paid $12 a gallon. trowel some onto the inner roof and doors as well as everywhere else before i put a heat barrier layer . then put some kind of paneling in. anyway i just thought i would share my idea. any thoughts? bill p.s. heres the stuff. Gardner Gibson 0311-GA LEAKSTOP roof Ptch 3.6qt
The Jalopy Journal
