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Rock wool for different uses in Argentina (help!)
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Old 13th August 2010   #1
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Rock wool for different uses in Argentina (help!)

Hi again!
I have a little doubt about the possible differencies between the properties of rock wool that you talk about, and the one i can get here in Argentina.
So i was wondering if you can help me, telling me what is the best rock wool for the correct appliication.
Ok, here we go.

Here, we have "Isover" a brand who manufactures all kind of rock wool products.
Thay have a line of compressed rock wool called Acustiver, designed for acoustics.
Acoustiver splits in two densities:
Acustiver P: 35 kg/m2
Acustiver P 500: 50 kg/m2

They come in different depths, here, I leave you a chart with NRC and the different depths of the 2 products. (and the link to isover)
http://www.isover.com.ar/productos/acustiver_p.html

Between 250 and 2000 HZ
Acustiver P 50 mm NRC=0,82
Acustiver P 70 mm NRC=0,94
Acustiver P 100mm NRC=0,96
Acustiver P500 50 mm NRC=0,84
Acustiver P500 100mm NRC= 0,99

My question is, what kind of rock wool should I use for Corner Bass traps, and what kind for early reflections traps? and, how much rock wool should I use for the basstraps / absorvers? (total depht)

Your answer will be really really appreciated.
Thanks and cheers from Buenos Aires, Argentina!
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Old 14th August 2010   #2
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No one? :(
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Old 14th August 2010   #3
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The biggest unknown to us how deep your traps are. If they are up to ~150 mm deep, use the 50 kg/m3 material. Above that, use the 35 kg/m3 material, or the 50 kg/m3 150 mm thick with a gap for the rest of the depth.

Good luck and happy listening!

Andre
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Old 15th August 2010   #4
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Originally Posted by avare View Post
The biggest unknown to us how deep your traps are. If they are up to ~150 mm deep, use the 50 kg/m3 material. Above that, use the 35 kg/m3 material, or the 50 kg/m3 150 mm thick with a gap for the rest of the depth.

Good luck and happy listening!

Andre

Thank you for the reply!
I did that before you answer... thanks god it was right!
I'll post some pics of my studio in a near future.

Cheers! case closed!
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Old 16th August 2010   #5
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Hola todo bien? Yo soy de Uruguay jaja!

Como comentario no mas acá tb se usa isover, y desgraciadamente no están todos los productos de esta marca, dentro de lo q es fibra de vidrio rígida acá venden el rp,el cual anda por los 35 kg, yo los estoy comprando, y me han dado tremendos resultados!

Es bastante rígida por lo q es fácil de laburarla, yo las envolví en TNT (nose si ahí se llama así, es una tela hiper barata y super fina) y la verdad estoy re conforme. Compre 20 en un principio para ver que tal, compre la semana pasada 30 mas y me faltan comprar 60.

Las estoy usando como absorbentes montados en las paredes de los costados separandolas 2 pulgadas, y como bass traps en las esquinas. Pude medir cambios a 50hz! Mejorando las ondas estacionarias axiales a full!

Si me preguntas te recomindo esa. Creo es lo mas parecido a la famosa owens 703.

Salute! Y suerte con ese proyecto!
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Old 16th August 2010   #6
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Originally Posted by Sebastian Vera View Post
Hola todo bien? Yo soy de Uruguay jaja!

Como comentario no mas acá tb se usa isover, y desgraciadamente no están todos los productos de esta marca, dentro de lo q es fibra de vidrio rígida acá venden el rp,el cual anda por los 35 kg, yo los estoy comprando, y me han dado tremendos resultados!

Es bastante rígida por lo q es fácil de laburarla, yo las envolví en TNT (nose si ahí se llama así, es una tela hiper barata y super fina) y la verdad estoy re conforme. Compre 20 en un principio para ver que tal, compre la semana pasada 30 mas y me faltan comprar 60.

Las estoy usando como absorbentes montados en las paredes de los costados separandolas 2 pulgadas, y como bass traps en las esquinas. Pude medir cambios a 50hz! Mejorando las ondas estacionarias axiales a full!

Si me preguntas te recomindo esa. Creo es lo mas parecido a la famosa owens 703.

Salute! Y suerte con ese proyecto!

Groso Seba! Los garcamos a estos, parlamo' en lunfardo y a la bosta!
Yo uso la de 50 kg de isover, es mucho mas cara, creo que ya gasté unos 1500 argentinos en lana de vidrio, y suena increible el estudio. Esta pregunta, era más para estar seguro que otra cosa. Tengo un problema modal que estoy en vias de resolver, ya veremos de que forma...!
Si venís para Bs As, avisame y tomamos unos mates

Saludos!
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