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Tree-50 · 09-23-2014, 05:18 PM

Just so y'all know, dynamat and the likes don't really do anything for sound DAMPENING. Those adhesive/foil back products are for mass loading, aka to stop vibrations by adding weight and changing resonance frequency. Do I think it's useless, no, but it's not going to do a whole lot on the floor board outside of insulation just because the seats are going to brace it and stabilize it anyways, not to mention there isn't a whole lot to rattle down there.

If you wanted to actually dampen your vehicle for sound proof, you would need stuff like closed cell foam.

(I know this thread is old)

09-23-2014, 05:18 PM	#44
Tree-50 Registered User Join Date: Jul 2014 Location: Dallas, Texas Posts: 120	Re: Dynamat the Cab...... Just so y'all know, dynamat and the likes don't really do anything for sound DAMPENING. Those adhesive/foil back products are for mass loading, aka to stop vibrations by adding weight and changing resonance frequency. Do I think it's useless, no, but it's not going to do a whole lot on the floor board outside of insulation just because the seats are going to brace it and stabilize it anyways, not to mention there isn't a whole lot to rattle down there. If you wanted to actually dampen your vehicle for sound proof, you would need stuff like closed cell foam. (I know this thread is old)