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GrandLordKhorne
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« on: April 03, 2006, 01:00:50 PM » |
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Well I?m up to my old testing of stuff thing agene? This time I was looking for something to paint the inside of my nutso new project with and to keep it quiet? I really was not expecting much of a result from any of the paint on light weight stuff but I figured I might just give it a try?
I got a can of Dynasheild, a tub of LizardSkin and a tub of Spectrum from Second Skin Audio? I tried spraying them on steel, Aluminum, plastic, painted steel, stainless and whatever ells I could get my hands on. Then I mounted the plates on top of a speeker and recorded the # of Db?s max hit during the ?Boulevard of Broken Dreams? at level 10 on my den stereo? I applied all products as directed and did compare to a normal sheet of uncoated metal over the speaker?
I have determined that Dynasheild sucks @$$? So I stopped after the first couple of tests on that one? Nuff said?
Lizard products (available from summit) are OK, with about a 20% reduction in transmitted sound energy over bare mettle? They stick to almost anything but did not like plastic all that much? You can paint it OK?
Second Skin Audio?s Spectrum was my favorite thus far? It sticks to most metals very well, works with clean painted surface well and adhered to plastic better than the others? It also was a better cost/value than most and has a Shadow gray color to it when dry? I experienced a 25% reduction of transmitted sound energy with this product? Easy to work with and cleans up with water? Prime and paints pretty well?
I will be painting the entire inside of my 92' with Spectrum before I put the interior back in it?
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GrandLordKhorne
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« Reply #1 on: April 03, 2006, 01:04:36 PM » |
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Just finished doing the inside of my computer case, works grate there too…
I really don’t know how well it would do in near freezing temps, I applied it in a garage in the high 60’s which is what the instructions call for… It drys pretty quick and what you might consider is getting a portable heater in there for a day and doing it then…
Spectrum is a lighter weight solution than something like Dynamat, which is why I chose it… However, Dynamat Extreme agenst a steel plate only absorbed 6Db of sound (50% reduction in sound energy transmitted) Vs. 3Db that the Spectrum absorbed and Dynamat is significantly more than twice as heavy. I would however drought that doubling the thickness of the spectrum applied would bring it up to the level of dampening found in a heavier mat.
Second Skin Audio dose also make a Dynamat like product called ‘Damplifier’. I have not tried Damplifier personally, but there is a grate deal of discussion on the Second Skin forums about how much better than Dynamat and most of the others it is and based on the quality of the product I received I would say it’s a fair bet that there mat is probably a very good product. I did not use the mat because I wanted light weight for this car. I am however considering trying a closed cell 1/8” mat that they have specifically for reducing standing sound waves and dampening body rubbing noise. It is a light weight mat called Overkill that is normally installed on top of Damplifier to give better effects but I’m considering installing sections of it behind my speakers in my doors (it’s also very light weight) and in places where the role cage is tight to the body.
There also releasing a new product called Firewall which is a ceramic filler based version of Spectrum that will insulate as well as quiet, I was considering using it in portions of my engine bay. If I do I will perform the same tests on it and post how id dose…
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GrandLordKhorne
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« Reply #2 on: April 03, 2006, 01:07:52 PM » |
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Since the original testing, I have used Damplifier, Rattle Pad and Fire Wall from second skin and would highly recommend all of them. Good quality, good price and good company.
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asg14
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« Reply #3 on: April 03, 2006, 03:04:17 PM » |
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We're gonna do it in my camry in the future sinc I have the interior ripped out. Matbe we can also write a DIY. See how it goes.
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GrandLordKhorne
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« Reply #4 on: April 03, 2006, 04:26:58 PM » |
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What it looks like sprayed in my trunk...  |
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excelon72
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« Reply #5 on: May 04, 2006, 01:29:28 PM » |
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Not The Cheapest Stuff Around But After 2 Bulk Packs(72sq Feet) There Is A Huge Diff In The Amount Of Road Noise Coming In And A Decent Amount Of Reduction In The Sound Getting Out. The Car Sounds More Like A Lexus On The Inside Now Than A Celica. Pain In The Ass To Install But Worth It.specially
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excelon72
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« Reply #6 on: May 04, 2006, 01:29:29 PM » |
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Not The Cheapest Stuff Around But After 2 Bulk Packs(72sq Feet) There Is A Huge Diff In The Amount Of Road Noise Coming In And A Decent Amount Of Reduction In The Sound Getting Out. The Car Sounds More Like A Lexus On The Inside Now Than A Celica. Pain In The Ass To Install But Worth It.specially When
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excelon72
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« Reply #7 on: May 04, 2006, 01:29:29 PM » |
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Not The Cheapest Stuff Around But After 2 Bulk Packs(72sq Feet) There Is A Huge Diff In The Amount Of Road Noise Coming In And A Decent Amount Of Reduction In The Sound Getting Out. The Car Sounds More Like A Lexus On The Inside Now Than A Celica. Pain In The Ass To Install But Worth It.specially When Your
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excelon72
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« Reply #8 on: May 04, 2006, 01:29:50 PM » |
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Not The Cheapest Stuff Around But After 2 Bulk Packs(72sq Feet) There Is A Huge Diff In The Amount Of Road Noise Coming In And A Decent Amount Of Reduction In The Sound Getting Out. The Car Sounds More Like A Lexus On The Inside Now Than A Celica. Pain In The Ass To Install But Worth It.specially When Your Speakers Are Getting 115 WATTS RMS
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