accoustic material

[daveybasso]

I am wanting to make sound panels and bass traps. i know everyone uses owens corning 703 but since no one in south florida seems to know what that is,.... not home depot, not lowes not anybody,....i need to know if i can make my bass traps out of r-30 pink insulation. my idea is to make a 24 x 48 wood frame thats 4 inches thick ( 24 W 48 L and 4" thick..or "deep") ..and buy the 6.5 inch thick r-30 and squash it down to 4 inch inside the frames and wrap with cloth....will this suffice as a bass trap and sound panel?


this is what i had planned to use---> http://www.homedepot.com/h_d1/N-5yc1...atalogId=10053


i could ether get the 6.5 inch thick stuff ( R-19) and squash it down to the 4 inches of the frame...OR...get the 9.5 inch thick stuff ( R-30) and squash it down to 4 inch.....which would work better? im sure i could get both to squash down as it is the "pink and fluffy" stuff...lol

[avare]

Originally Posted by daveybasso

I am wanting to make sound panels and bass traps. i know everyone uses owens corning 703 but since no one in south florida seems to know what that is,.... not home depot, not lowes not anybody,....i need to know if i can make my bass traps out of r-30 pink insulation. my idea is to make a 24 x 48 wood frame thats 4 inches thick ( 24 W 48 L and 4" thick..or "deep") ..and buy the 6.5 inch thick r-30 and squash it down to 4 inch inside the frames and wrap with cloth....will this suffice as a bass trap and sound panel?


this is what i had planned to use---> Owens Corning R-19 Kraft 6.25 In. x 23 In. x 93 In. Batts in Bag Insulation - E54 at The Home Depot


i could ether get the 6.5 inch thick stuff ( R-19) and squash it down to the 4 inches of the frame...OR...get the 9.5 inch thick stuff ( R-30) and squash it down to 4 inch.....which would work better?

That material crushed to 4" thick would still be too light.

703 and similar products (3 lb/ft³ fiberglass and 4 lb/ft³ mineral wool) are sold by HVAC and refrigeration market companies.

Enjoy!

Andre

[daveybasso]

so 9.5 inches almost 10 crushed down to say...6 inches wouldnt trapp any bass?


ive called ac companys, plumbing companys, hvac companys.....every one in the book and they ether dont know what im talking about OR they refuse to sell it retail. they say you have to be a builder to purchase it as they " dont sell to the public"...i see alot of talk about the pink stuff being used to make bass traps on forums so it struck me a little odd when you said it wouldnt work

[avare]

Originally Posted by daveybasso

so 9.5 inches almost 10 crushed down to say...6 inches wouldnt trapp any bass?


ive called ac companys, plumbing companys, hvac companys.....every one in the book and they ether dont know what im talking about OR they refuse to sell it retail. they say you have to be a builder to purchase it as they " dont sell to the public"...i see alot of talk about the pink stuff being used to make bass traps on forums so it struck me a little odd when you said it wouldnt work

1. There is a lot of variation on how insulation is used. In your case it would not be as effective as possible.

2. Many people have success with spi. The link is to their Florida directory. Are you asking for 3 lb/ft³ fiberglass and 4 lb/ft³ mineral wool?

Andre

[daveybasso]

no, i asked them for owens corning 703 and every place i asked about it said that they had no idea what that was.... lol so i figured id make 6 inch frames and squash 9.5 r-30 down to 6 but if your saying that wont work then i guess ill have to figure something else out....i cant get the proper materials down here for some reason

but i did figure out a way around the high cost of cloth! lol....instead of paying 4 dollars to 9 dollars a yard.....im just gonna go out and buy king size bed sheets and cut those up and use them...walmart has kingsize sheets starting at 9.99 =D...ill save TONS of $$ by doing that. i could do 3 or 4 bass traps for the cost of doing one trap paying 4-9@ a YARD at the cloth store

[xaMdaM]

Two things...

When you contact SPI, let them know you want to speak to a technical sales rep about rigid insulation products. (They sell quite a bit of other materials/goods with specialists in different areas.)

Also, I would seriously encourage you to eiter skip the sheets and go for an FR/IFR material, or look up how to make your own fire treatment solution and treat the fabric yourself.

[daveybasso]

ok i think ive solved my problem =)

i just found a place that will sell me the fiberglass duct board that they use to make AC ducts for 40 dollars for a entire 4 x 10 foot sheet!

i went to look at this stuff, and it is identical to owens corning 703, in fact the guy had a piece of 703 laying aroud and he let me make a side by side comparison and it feels, looks EXACTLY the same....same rigidity, same density, same flexability ...everything... and he also said this stuff is for sound controll as well. so does anyone have any exp with this stuff? " ac duct fiberboard?" its yellow,its pretty rigid,.. it has the silver skrim backing ( which ill remove of course for the bass traps.) it comes in 1.5 inch thickness so ill be stacking 3 of them to get 4.5 of thickness ( should be good for bass trapping)

[xaMdaM]

Seriously??? $40 for a 4x10 sheet???

WOW!!

I think I paid close to $20 for a 4x8 sheet of 1" and almost $15 for a 2x4 sheet of 4".... Granted, this was a bit over 2 years ago... but I can't imagine it's doubled in that length of time.

[daveybasso]

yeah i about freaked out when he said 40 a sheet lol! i bought all i needed for the entire room...accoustic panels, bass traps...it all came to like 220 dollars.....would have been over 500 if iwent with the other places ive called that wanted to sell me owens corning 703....funny thing is...this stuff IS owens corning 703....at 40 dollars a 4 x 10 sheet!. and pretty much all you have to do is call your local refrigeration AC place and they will sell it to you...SCORE!!

[qbury]

Originally Posted by daveybasso

yeah i about freaked out when he said 40 a sheet lol! i bought all i needed for the entire room...accoustic panels, bass traps...it all came to like 220 dollars.....would have been over 500 if iwent with the other places ive called that wanted to sell me owens corning 703....funny thing is...this stuff IS owens corning 703....at 40 dollars a 4 x 10 sheet!. and pretty much all you have to do is call your local refrigeration AC place and they will sell it to you...SCORE!!

Are you sure it's 703? I had a similar experience with a supplier in my area. He had this: http://commercial.owenscorning.com/a...534bc6824c.pdf

They bought it for a project the never happened and when I asked about 703 he told me about this stuff. Side by side it looked the same as 703. My problem was there was no sound absorption data testing data on it. He couldn't give me any data and as you see from the spec sheet it's not on there either. I emailed OC and was told "We do not have testing available for InsulQuick for air flow resistivity or for Noise Reduction Coefficient. I passed on it and bought mineral wool that had numbers comparable to 703, actually cheaper. I don't know if this is the same product you received but if you can find out what it is and post before and after measurements I'm sure that would help out others who may come across a situation like this.

[daveybasso]

well, as i said i had a piece of this stuff in my left hand and a piece of real owens 703 in the right and i could not see or feel one single difference. and now that ive been forum surfing for a few hours im seeing alot of people saying that ac duct board IS 703. i mean, i looked real close at the 2 samples...squshed them both in my fingers , they were the exact same rigiditdy and firmness, exact same color, thickness, they both had the exact same semi firm crunch to them when squeezing it between your fingers. if there is a difference, its something you cant tell by looking or feeling thats for sure ehe. and yeah all anyone has to do to get it is to call thier local AC/refrigeration supply house and they all have it by the sheet. you dont even have to have a tax number or be a buissness to buy it...i litteraly loaded up my truck with it and drove off...( after paying for it of course lol ) it was the easiest thing ever to buy. the stuff does have what looks like a thin tin foil plating on the back....very thin like a piece of paper thin. it just peels off with the greatest of ease......ill definatly let everyone know what a difference it made once i get my traps made and can get some readings before/after

[localhost127]

Originally Posted by daveybasso

well, as i said i had a piece of this stuff in my left hand and a piece of real owens 703 in the right and i could not see or feel one single difference.

test it with ETC

[avare]

Originally Posted by daveybasso

ok i think ive solved my problem =)

i just found a place that will sell me the fiberglass duct board that they use to make AC ducts for 40 dollars for a entire 4 x 10 foot sheet!

i went to look at this stuff, and it is identical to owens corning 703, in fact the guy had a piece of 703 laying aroud and he let me make a side by side comparison and it feels, looks EXACTLY the same....same rigidity, same density, same flexability ...everything... and he also said this stuff is for sound controll as well. so does anyone have any exp with this stuff? " ac duct fiberboard?"

Congratulations. There is a lot of absorption data here.

Andre

[daveybasso]

Originally Posted by localhost127

test it with ETC

sorry for my noobness lol but what is ETC?

[qbury]

Originally Posted by daveybasso

sorry for my noobness lol but what is ETC?

http://www.gearslutz.com/board/6473316-post2.html
http://www.gearslutz.com/board/6507362-post2.html
http://www.gearslutz.com/board/studi...er-v2-1-a.html