My deadener > yours...

[ngsm13 5,000+ posts]

Meh...

I have over 200 square feet of deadening... mat and CCF...

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nG

 

[ramos 5,000+ posts]

Nice. But I think I'll stick to my idea of deadening my doors with rare albino tiger pelts. Should save me some money that way.

You should try the skins from baby leopard seals. They are so much more dense. Leave a little fat on the carcass and you get some banging arse decoupling mats //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Rudy 10+ year member]

Very cool.
Now if you could find the RF of that sheet somehow and analyze the decay in like ms or something, that would be sweet.

Also, just as a control, take the weight equivalent in a material that has the mass but no viscoelasticity and fasten it to it and see what happens. I like duct tape and rocks, personally. Many are addicted to this mass loading idea and just don't buy it. I like to use NHMC for a mass loader due to it's ease of application and density, so it would be interesting to see what would happen if you switched the CLD out for NHMC and matched the mass. To me, NHMC doesn't really possess much elasticity (it's pretty plastic) but my senses tell me it might do a good job because it's still in a semi-liquid (viscous) state.

And it would be good to do a test just with the butyl and not the foil. You can get the foil off of VMax, but it's not pretty.

I think you'll get less rubuttal if you put the exact amount of mass on the sheet for each product. The PnS zealots will argue all day that mass is mass and cheaper is better. Of course they are wrong, but it would be fun to shut them up with something. //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I'll probably get a measurement mic at some point and maybe redo it all. The funny thing is that the results were so obvious as to almost be ridiculous. I know people love graphs and numbers, so even if the methodology is completely bogus, pretty pictures will convince at least some people otherwise //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I think we get pretty close to no viscoelasticity with the asphalt P&S. In terms of mass, 58 grams of DX deadened the panel. It took 135 grams of P&S not match the DX (and V-Max, Damplifier and Damp Pro) results. If mass was the main benefit, 68 grams (2 squares) of P&S should have performed at least as well as the DX and it wasn't even close.

The eDead pretty much fills the butyl/no foil slot since its Mylar contains a microscopically thin layer of foil sandwiched in some sort of foil. The eDead adhesive is very close in consistency to the adhesives of the much better performing products. It took 136 grams of eDead (3 squares) before the RF dropped to a point where I didn't feel I could make an objective comparison but could still hear sustained resonance.

 

[FoxPro5 5,000+ posts]

pretty pictures will convince at least some people otherwise //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

I guess I'll never know, but I wonder if the not-so-pretty pics I've posted of eDead V1 self-destructing in my car had any effect. Other than, "hey, look that stuff has three layers....and plastic.....what a bargain." //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

I think we get pretty close to no viscoelasticity with the asphalt P&S. In terms of mass, 58 grams of DX deadened the panel. It took 135 grams of P&S not match the DX (and V-Max, Damplifier and Damp Pro) results. If mass was the main benefit, 68 grams (2 squares) of P&S should have performed at least as well as the DX and it wasn't even close.

So you're saying I should take'r to the next level with Grace Ice Shield? //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

It took 136 grams of eDead (3 squares) before the RF dropped to a point where I didn't feel I could make an objective comparison but could still hear sustained resonance.

It's funny how VE dampers have to actually be alive to do their job. I mean, if you think about it, it can't be dead....it has to react/respond to the movement of the surface. Never was a product so aptly named. //content.invisioncic.com/y282845/emoticons/veryhappy.gif.fec4fed33b4a1279cf10bdd45a039dae.gif

 

[James Bang 5,000+ posts]

My no deadeaner > your deadeaner

OMG i need to start selling deadner

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[Rudy 10+ year member]

So you're saying I should take'r to the next level with Grace Ice Shield? //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

I'm guessing products like and R-Blox and Sound Destroyer (asphalt with Mylar) would be absolute marvels of non-performance.