I just answered exactly this question in an email recently. Here is the response;
http://www.acp-composites.com/ https://www.cstsales.com/home.htm These two links are good for general composite building supplies. ACP is best for price, CST for customer service. Fiberglass is generally bought from one of these two, especially when they have a sale. Better prices can be found elsewhere if you buy full rolls. I buy my Pro-Set and West Systems epoxy from CST. The bag tubes, bag seals, and vacuum nipples come from CST. http://www.carb.com/ This is my source for carbon fabric. You want the style 3350-xx. The xx is just the roll width. I believe they have it in stock now, they frequently go for long periods with it out of stock. You generally need to stock up when it is available. http://www.fiberglasssupply.com/ http://www.fibreglast.com/?GTSE=goog>KW=fiberglass The above are suppliers from my list that I generally don't buy from but they do have some interesting stuff. http://johnrsweet.com/ http://acf.clark.com/ The above are suppliers of the 1.7oz style 120 Kevlar that I use. They sell "factory seconds" of that material which for our purposes is just as good as first quality. The good news is that the price is about half of the price anywhere else. The bad news is that they haven't had any for a long time. You need to grab it when available and usually full rolls only. For smaller quantities of Kevlar and when not available here you have to go to ACP and/or CST (the first two links). http://www.macqc.com/ This is my carbon tube supplier. You need to go to the stock tubing page. They have prices that are way less than anyone else and they sell by the piece. They like you to print out an order form and fax the order in. Let me know if you need something else not listed here or if I can answer any other questions. Phil ___________________________________________________________________________ Some specifics to more exactly answer your questions; All Kevlar used in the DVD is 1.7oz. style 120. This is frequently listed also as 1.8oz. 3/4oz glass is used for the finish layer on most wings. 1.4oz glass is used for tail layups. 2oz glass is used for a bias finish layer on slope wings, also used in conjunction with Kevlar for leading edges of larger wings. All carbon skins use the 3350-xx (3.5oz uni-carbon/s-glass)from CARBCOM. CARBCOM no longer makes the heavier 4.7oz "8020" carbon so I am changing my structural designs to get away from using it. Slope wings now use Foamular 600 cores with the 3.5oz carbon instead of Foamular 250 with 4.7oz carbon. I have about 50 yards of the 4.7oz carbon left and only use it on center panels of three piece wings (the Aegea wing) now. I nead to redesign that center section before I run out of the 4.7oz "8020" carbon. ------------------------------------------------------------------------- If anyone knows of a supplier for full rolls of the 4.7oz "8020" uni-carbon/s-glass , I would like to know about it. This fabric has 16 3k carbon tows in the warp direction and 16 1K fiberglass tows in the fill direction. I think ACP or CST may still sell some of this but I would be looking for the source that they buy from. -------------------------------------------------------------------------- I no longer use carbon for wing leading edges (the fabric strip that is attached to the foam core before bagging). I now use a strip of material that is 1" wide made from 1.7oz Kevlar plus 2.0 oz glass. This "composite fabric" is made the same way that I do it for HL wings in the video. The carbon fabric skins are trimmed with a pattern such that they no longer extend past the core LE but rather stop on the LE fabric. This change was made to avoid having to trim and sand carbon from the wing LE after bagging. Phil RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
