KR> Glass cloth shelf life

2013-03-26 Thread Patrick Driscoll
Sid said - Fiber glass cloth has a sizing coating on each strand to help the epoxy resin to bond to the glass. The shelf life for most fiber glass sizing is five years. After that time the wetting out with the resin becomes more difficult and will result in a weaker structure. The older the cloth

KR> Glass cloth

2013-03-26 Thread Gary Robison
1 SQ Foot X 9 will get you there > Jim L. wrote: > >> One has 18 threads per inch and is .008" thick. >> The other is 15 threads per inch and is .013" thick. >> Can anyone confirm that either is suitable for use on the KR? > > The .008" sounds like what is called for in the KR plans. It's probab

KR> First Flight Issues - Bent Nose Strut

2013-03-26 Thread Sid Wood
Bounced landing on the first flight, 3/23/13, bent the nose gear strut. Here is a picture from my website showing the result: http://websites.expercraft.com/sidwood/index.php?q=log_entry&log_id=71578 NV aero has a replacement nose gear strut in shipping. Thanks to Steve Glover for the super qu

KR> First Flight Issues - Elevator Trim

2013-03-26 Thread Sid Wood
On the first flight, 3/23/13, moments after lift off, the elevator trim jumped to Full Nose Up. Trim control in the cockpit was non-responsive. I had to hold firm forward pressure on the stick to maintain level flight with the stick position about neutral. The bounced landing bent the nose st

KR> Glass cloth shelf life

2013-03-26 Thread Mark Wegmet
You can refrigerate the material to increase shelf life. I spent 25 years building circuit boards including multilayer boards with "B-Stage" epoxy coated e-glass. Refrigeration with desiccation would allow the epoxy to survive for up to one year. If you are talking glass cloth only, you should see

KR> Glass cloth shelf life

2013-03-26 Thread Jeff Scott
It is true that the sizing on the fiberglass cloth does deteriorate with age and the sizing is on the cloth to help the cloth wet out with resin. ?But, it will still wet out and produce the same strength composite structure as there is no shelf life for glass fibers. ?However, old cloth with deg

KR> Glass cloth shelf life

2013-03-26 Thread smwood
Fiber glass cloth has a sizing coating on each strand to help the epoxy resin to bond to the glass. The shelf life for most fiber glass sizing is five years. After that time the wetting out with the resin becomes more difficult and will result in a weaker structure. The older the cloth the w

KR> brakes

2013-03-26 Thread Edward Spyker
Larry said: Thanks for the heads up, Ed.? One question.? Is that a pressure or vacuum pump?? + This one is a vacuum bleeder. http://www.harborfreight.com/brake-bleeder-and-vacuum-pump-kit-69328.html Ma

KR> brakes

2013-03-26 Thread Larry&Sallie Flesner
At 01:50 AM 3/26/2013, you wrote: > I just bought this cheep brake bleeding tool to bleed my car's > clutch line. > http://www.harborfreight.com/brake-bleeder-and-vacuum-pump-kit-69328.html +