rsporsche - 2800cs
- Thread starter rsporsche
- Start date
a ha ... in the meantime, i found cascade audio engineering, who makes vb-1x and i asked about buying a gallon. they are in houma, ... so lets see what they have to say. don't need to buy 5 gallons for 1 car.
You need 2 gallons
my trunk is already done. does that include the inside of the doors / rear windows? good to know - thx!
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tdgray
Well-Known Member
I used about 3 gallons combined of sound deadening and ceramic coating… maybe 3 and a half.
Dynapad is the best…
I used a layering approach with several products all from a firm called second skin.
- I painted the floor with a thermal insulation coat.
- Then installed the sound deadening mat across the entire floor, interior of doors and rear quarters.
- Then installed a heavy foam barrier for sound absorption across the entire floor area
- Under the door cards (on top of the vapor barrier) I installed a closed cell foam
If you are returning anything to Amazon check the return date. They are tightening up, shorter return window. Also making it difficult to navigate the return screen.
Free is shrinking like our candy bars.
Free is shrinking like our candy bars.
What about paint the roof with the thermal insulation coat?
that would be a good idea IF you have to remove the headliner. i didn't want to take mine out for fear of damaging it. originally i was going to put 1/2" of dynaliner thermal insulation up there.
Sorry, I was thinking of doing it on my car... which was completely dismantled...
If you have the headliner off it is little additional time. I would also add some sound deadening adhesive mat.
tdgray
Well-Known Member
I sprayed my top with the sound deadening. Truthfully I thought I’d get more of a thud when gently whacking the roof..., but it is noticeably better.
I’ve heard too many stories about mats falling from the roofs to do that.
I’ve heard too many stories about mats falling from the roofs to do that.
if i was taking the headliner off, i would use sound coating and add thermal insulation pad above the headliner. the mat is self adhesive and the bars on the headliner will keep it above the headliner.
And with the headliner off you could put in the metal blocks for retracting shoulder harnesses.
I agree with this. The spray will adhere and provide deadening, but a lighter insulation layer will be unlikely to fall off and still offer significant thermal insulation.
Sound deadening and thermal insulation are sort of mutually exclusive. Deadening requires mass and density, and this is generally thermally conductive.
Lizard Skin is another product that I used. Sprays on nicely - it does not generate a fine mist so is less likely to overspray onto your exterior. I used some additional dynamite here and there and built up the floor using layers to even the surface out for the carpet to lay upon. Like Don said - make sure to mask off any tabs, bolt holes, etc, as the stuff will fill them or add thickness that makes attaching gaskets etc. not work very well. I missed the raised mounting holes on the hat board. With the extra thickness of insulation the plastic clips on the bottom of the hat board would not engage the holes in the sheet metal holes.
