Date: Thu, 6 Oct 1994 15:41:00 -1000 From: tommarvin@genie.geis.com Message-Id: <199410070405.AA089782737@relay2.geis.com> Organization: Division of Applied Sciences, Harvard University Subject: For Andrew. & all @@ @@@@ @@@@ Andrew....... @@ @ @ Glad you liked the stamps. @@ @@@@ Now for your questions, the Orcon film is @@@@@@@@@@@@@@ in square yards, not square meters. Some @@@@@@@@@@@@@@ of the specs of this remarkable film---- @@@@ @@ # 2 mils thick. @@@@ @@ # it is not mylar but a Polyester skim. @@ @@ # .47 oz/sq yd (16 gms/sq m)(see below) @@ @@ # Frosty, semi-transparent @@ @@ # Tensile strength is 10 lbs/inch width @@ @@ # Flammability, zero flame time, zero glow time, no drippings. It meets ALL U.S. Federal Aviation Regulations and Boeing regulations. (Thought you would like that in case you wanted to mount an engine on the file & do some flying.) Andrew - I put this on the scales, (gram scale, VERY reliable & accurate) and came up with .458 per sq. yard (1296 sq. in). I tried this with 3 diff. pieces, all came in at .458/sq. yd. That's well less than 1/2 oz. per sq. yard! So then I took the Icarex, 1/2 oz., white, 3 diff. pieces from 3 different rolls. The weight per sq. yd. (1296") was 28.7 grams, 28.675 grams and 28.712 grams! Go figure! That's just over 1 ounce per sq.yd. Thank you for your interest in the above. It even opened my eyes. Now I'm afraid to weigh the 3/4 oz. Icarex, it might be over .8/sq. yd.!!! Tom Hang-em High in the Sky! ________________________________________tommarvin@genie.geis.com = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Sun, 9 Oct 1994 11:25:41 -1000 From: andrew@tug.com (Andrew Beattie) Message-Id: Organization: /usr/lib/news/organisation Subject: Re: For Andrew. & all tommarvin@genie.geis.com writes: > So then I took the Icarex, 1/2 oz., white, 3 diff. pieces from >3 different rolls. The weight per sq. yd. (1296") was 28.7 grams, >28.675 grams and 28.712 grams! Go figure! That's just over >1 ounce per sq.yd. Thanks for going to the effort of checking this. Hmmm.. by my calculation, 28.7g/yd^2, multiply by 1.0936 is 31.5g/m^2. Pretty close to the advertised 31g/m^2. I think that the "AKA 1/2 oz" is some poetic licence in reference to the weight of other "1/2oz" heavily coated fabrics > Now I'm afraid to weigh the 3/4 oz. Icarex, it might > be over .8/sq. yd.!!! I think that many of us without the facilities to test ourselves would be most interested to hear your independant results. The raw numbers on their own are pretty meaningless, but are useful with comparitive figures for other known fabrics. Andrew -- Netiquette-of-the-day: Reduce quotations but don't use null quotations You can FTP the kite FAQ's from ftp.hawaii.edu (directory /pub/rec/kites/faq) /-\ () >< () |\/| () >< () /-\ \-/ () >< () |/\| () >< () \-/ = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Tue, 11 Oct 1994 22:02:52 -1000 From: crowell@teleport.com (Carl Crowell) Message-Id: Organization: Kites By Carl Crowell Subject: Re: For Andrew. & all >> So then I took the Icarex, 1/2 oz., white, 3 diff. pieces from >>3 different rolls. The weight per sq. yd. (1296") was 28.7 grams, >>28.675 grams and 28.712 grams! Go figure! That's just over >>1 ounce per sq.yd. >Thanks for going to the effort of checking this. >Hmmm.. by my calculation, 28.7g/yd^2, multiply by 1.0936 is >31.5g/m^2. Pretty close to the advertised 31g/m^2. I think that >the "AKA 1/2 oz" is some poetic licence in reference to the weight >of other "1/2oz" heavily coated fabrics weight is in refrence to raw cloth... before the finishes are added... Kinda like a 2x4 in reverse, it is 2"x4" before it is 'cut'. carl = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Sat, 22 Oct 1994 09:20:00 -1000 From: tommarvin@genie.geis.com Message-Id: <199410221934.AA061814451@relay2.geis.com> Organization: Division of Applied Sciences, Harvard University Subject: Re: For Andrew & all @@ @@@@ @@@@ Carl C....... @@ @ @ The weight is based on the raw ripstop, not @@ @@@@ the finished. Yes, a agree. Now to look at @@@@@@@@@@@@@@ the Icarex: @@@@@@@@@@@@@@ Raw material plus Coating equals weight. @@@@ @@ This is their advertising claim. 31 g plus @@@@ @@ the coating of 4 g is 35 g. Thats grams per @@ @@ sq. meter, not per sq. yard. The square yard @@ @@ weight is 28.7 grams, which is just over @@ @@ 1 oz. (thats a piece of fabric, P31, of 936 @@ @@ sq. inches.) Am I correct? Tom Hang-em High in the Sky! ________________________________________tommarvin@genie.geis.com = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =