Sprayable sound dampening (1 Viewer)

[-MaTTi-]

NOXUDOL 3100 - Auson

Vibration is the primary source of annoying sounds; Noxudol 3100 offers an effective and time saving way of preventing structure-borne sounds. The compound has a documented high damping factor and approximately half the weight compared with traditional asphalt mats.

www.auson.se

Any experience of this product in 40-series?

 

[AutaviaFJ40]

I'm sure its like any of the other solutions...they work, but add significant weight. I used Dynamat in the interior of doors and floorboard and the difference is significant...they downside is you will hear every rattle now, I spend countless hours chasing them down

 

[-MaTTi-]

but add significant weight.

They said: ”Noxudol 3100 has a high damping factor despite low weight/unit area (approx. half the weight compared with traditional bitumen carpets).”

 

[-MaTTi-]

Anyone never tried?

 

[-MaTTi-]

Well, I bought a 20-litre can of this.

Mercedes and Volvo use this stuff, so it’s good enough for me too.

 

[tstepp920]

Well, I bought a 20-litre can of this. View attachment 2040699

Mercedes and Volvo use this stuff, so it’s good enough for me too.

Keep posting. We want to see the results. Thanks

 

[lenmn]

Maybe record cabin ambient noise before and after. And/or take some measurements with a noise meter. There are apps for iOS and Android phones that use the phones microphone to measure audible levels.

 

[AutaviaFJ40]

its a significant difference

 

[-MaTTi-]

Maybe record cabin ambient noise before and after. And/or take some measurements with a noise meter.

Sorry, but before situation is not going to happen, I’m doing it now. Here are my tub halfs:

But I have a calibrated desibel meter. I can measure ”after”-values maybe next summer.

 

[-MaTTi-]

And sprayed with a cheap air hopper spray gun (4.5 mm nozzle, 4 bar):

Very thich stuff, like construction grout. Hard to get aimed, so wide/uneven spray shape.

But there it is, about 20 pounds sprayed (beige surface is touch dry, white is not yet):

Before:


After: