I would love to find some 2.5 S-Glass like Phil once had. Another cloth with a similar thread count and a weight of 2;5 or lower would be fine.

Thanks, Paul

Paul, that is style 6220HT. It a 4H 60x58, 3.06 ounces/yard.

That is not the link you posted in the thread about the stuff. The doc said it has a thread count of 200 by 180. Maybe I read it wrong. I will look at the stuff from Thayer then. They have some right in the 2.5 range with pretty high thread counts. I really like the firmer fabric for wing lay-ups.

Paul

There is style 4180 s-glass which is 8H, 80x100, 2.4 ounces/yard.

I can find not record of an s-glass with a 200 x 180 thread count.

An RC Groups member sent me a sample of a fabric that he got from Phil. It was an H4 and had a thread count of 60x60 (58). I had identified it as style 220 or 6220HT. 220 is e-glass and the 6220HT is same fabric but made with s-glass.

Just look at the fabric you have. How many yarns are there in one inch? What is the weave style? You'll probably need a magnifying glass.

I will give you a shout later, my eyes are not what they were so it may have been an 80 by 100.

If what I used is 60 by 60 then I am even more excited because I can get fabrics with those kinds of thread counts pretty regularly.

Paul

4180 seems rare per BGF tech folks.

Uses a small denier S-2 yarn from JPS(=$$).

Let us know if you find a source-took me 8 months to get 6522(4 oz. S-2).

R&G appears to have it, or something very similar listed. http://shop.r-g.de/en/by-manufacture.../m-silane.html I was getting ready to order some, but a friend came through with some for me. I use it in my fuselages for hatches (two layers plus a layer of Kevlar in between) and for reinforcing around the hatch opening. I find it quite superior to E-glass but it doesn't contour. So its application is limited when it comes to fuselages. It has a nice tight weave.

I also have some 4522 and I don't consider it anywhere near as good for the job as the weave is fairly open. It may contour though; really I haven't tried it.

Not S-glass, but you might find this interesting: http://shop.r-g.de/en/by-manufacture.../m-silane.html

Gerald

Gerald, That is a great find !!!! The thickness is also very nice!!! I just ordered a small roll of 3070 from Thayer. It isn't S-glass but it will give a nice finish and it should be pretty stiff. I may just suck it up and order some carbon when the funds allow.

Thanks Gerald