I didn't see this discussed before. I am putting together a 1950 Chevy P/U together for a friend. He would like to have it sound deadened. Dyna Mat is pretty expensive but looks like it would do the job.
Any suggestions for sound deadener that would be nearly as effective, cost less than Dyna Mat and as easy to use?
Thanks in advance H
Eastwood sells a similar product for about half the cost.
Talk to the guys at DTI and Dynamat. They both have a range of sound/heat control materials that may work better than the typical asphalt pad.
Fatmat has worked pretty well for me at a fraction of Dynamat's price.
And keep in mind that Dynamat does nothing for heat control unless you place it outside of the cabin.
As a grassroots solution, I have seen people use roofing materials for this purpose. Same peel and stick application, bigger rolls.
The thing is, you really do not have to cover the entire surface of the cabin if you are using these products, localized use to stop vibratin is the proper use.
The better way to stop noise is to use the felt like undelayer. This will also slow heat transfer into the cabin.
I still have an old Dynamat box around here that has instructions that state never cover a full panel, Only 25-35% in the center of the panel is needed and anything more has rapidly diminishing returns there was even a chart showing how attenuation went down rapidly when excess was used. Now days they decided they could make a lot more money and the box says use up to two layers.
I can't stand the look of Dynamat so I wind up using 3M sound deadening sheets these days
19"X19" tiles are a little bit cheaper by the square foot than dynamat but not much.
What must audio guys do is put dynamat on and then follow that up with mass loaded vinyl
Those guys are looking to stop resonance, right?
I'm going to repeat my suggestion to talk to the actual experts. I chatted with both companies at SEMA about our own particular heat/noise control issues, and they were able to make specific recommendations that are not ones you'd usually see.
Keith Tanner wrote: Those guys are looking to stop resonance, right? I'm going to repeat my suggestion to talk to the actual experts. I chatted with both companies at SEMA about our own particular heat/noise control issues, and they were able to make specific recommendations that are not ones you'd usually see.
Dynamat helps to change the resonance frequency so its not as noticeable, this helps to reduce metal rattling sounds. MLV does this since it adds weight but also helps to block noise as well. Closed cell foam is another good tool (to put below before MLV).
This video expands on this: https://www.youtube.com/watch?v=DQ1PW7jxU1Y
I found the first review for this product to be very informative as well:
"NOT a sound barrier! It is a decoupler, and it works well as one." http://www.amazon.com/Noico-Automotive-Insulation-Self-adhesive-Deadening/dp/B00URV8MFC
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