More sound deadening questions...

[basementgeek]

I've read a lot about mat, but haven't read much about sprays. The local shop where I bought my Focal comps from, recommends Cascade damping spray for the inner door skin, and their butyl mat on the inner sheet metal. Just wondering if anyone has used spray and can comment on pros and cons of using it instead of mat? I have an '03 P5 if that makes a difference.

 

[got wake?]

i used the cascade paint on paste and thought it was decent, but didn't work as well as mat products. the spray on products just don't add enough mass to the metal to really dampen them well. the advantage of spray on products is that it can get to hard to reach spots better then mats.

 

[Poseur]

I've used the paint on stuff and I too found there to be difficulty getting sufficient coverage for just about every situation, I also had problems with the time of curing because due to the lack of thickness, multiple layers are, indeed warranted. in retrospect, it would've actually been easier to just throw up a layer or 2 of mat.

 

[basementgeek]

Thanks for the feedback guys. I'd have to buy a gun to spray the stuff, which would add to the cost. It looks to me like the spray acts more like a foam (ie/ ensolite) than a mat. Do either of you have experience with the Cascade VB2Max mat? It's a little different in construction and not in the deadener review. Do you think Raamat would still be a better value?

 

[got wake?]

got cascades website address? i haven't been to it in a long time, and now i can't seem to find it.

 

[basementgeek]

Sure do.

http://www.cascadeaudio.com/

Apparently VB-2 is a "mineral filled vinyl coplolymer". Supposedly lighter but just as effective as asphalt based mat.

The Vb-2 Max is just "butylene rubber".

Also, any idea how many square feet of material it would take to do inner and outer front doors and rear wheel wells?

 

[got wake?]

i like the black aluminum backing on the VB-2 max. cascade and the raammat bxt both spec the same thickness, but the bxt is 50% heavier, which is good for sound dampening. but the cascade has a thicker aluminum backing, which can be good and bad. it's good because it's thicker, but it's bad because the thicker aluminum is less stretchy (the bxt contours very well) and is more likely to cut you (i've been cut a ton of times by dynamat extreme, but far less with bxt).

for the money and specs, i'd still take the raammat bxt.

 

[basementgeek]

Yeah the MAX is similar to other stuff out there, but the VB-2 sounds interesting. I just can't find a review online about it. Not sure if I should go status quo or buck the trend and take my chances......