.

No such thing as 100% but you can get 99.9%. (http://www.greentechforum.net/category/news/2008/01/22/carbon-nanotubes-create-blackest-material-on-earth/) :)

What is wrong with the black FR701 from Guilford? It is a coarse polyster weave - no sheen - like burlap without the flammibility. And you can tell by the fabric name it has all the acoustic fabric ratings so you don't have to worry about anything. When you are talking about optimizing ANSI room contrast - even a mid gray or dark neutral color will work. A mid gray paint would reflect 18% - times that by three walls to bounce off around the room before getting back to the screen and you are at 0.5%. A good fabric weave soaks up even more than paint.

I ended up with the black cotton velvet. After all the looking I did it suited my taste the best. I did all the sewing myself! The velvet was a little more but when you buy in bulk you can work out a discount. I got 40% knocked off.

I am trying to figure out what I want to use too.

Anybody using black felt?

where did you get your black velvet? and what sort of price?

Felt isn't a good choice. It's not as saturated black as velvet. It's not very durable, it falls apart after a while. My grandmother was a pre-school teacher. The stuff fades and becomes thin.

Thanks, that is good to know. I could see how it would not be very durable.

I hadn't come across this stuff yet. Thanks for the tip! I may go with this!

This is some good stuff. Totally blackout and no sheen. Cheap too. If you order over 50 yards, you get it for $4.05 per yard.

http://www.rosebrand.com/product271/Duvetyn-Black-FR.aspx?tid=2&info=duvetyne

Duvetetyn is very durable. My only complaint is it usually isn't fire resistant. But this stuff is!

I actually bought it mail order through Joann Fabrics. It was $18.00 / yard. The fringe I bought at Walmart for $2.00 a yard.

http://www.joann.com/joann/catalog.jsp?CATID=cat3615&PRODID=prd52781&source=search

The best yet.

http://www.fpi-protostar.com/flock.htm

Black GOM around screen and over the top:

http://i23.photobucket.com/albums/b393/bigmouthindc/DSC01006.jpg

http://i23.photobucket.com/albums/b393/bigmouthindc/DSC01010.jpg

some construction details here:

http://www.avsforum.com/avs-vb/showthread.php?t=837848

Trunk liner is about as good as it gets for soaking up light. It's like heavy porous felt. It can be very inexpensive in bulk.

I'd google "felt trunk liner". you should get all types and grades. even sticky back.

I saw this
http://www.onlinefabricstore.net/felt-fabric/rainbow-felt/rainbow-felt-black-felt-.htm

I buy huge rolls of the stuff at a local upholstery warehouse for $5 yard 72" or 60" inches wide and up to 1/4 inches thicknesses.

check out the flameproof
http://www.thefeltpeople.com/pages/colorcards/feltcolorcard.htm?gclid=CKqo3Im9g5ICFQc-gwodiB8B9Q