ULF-1 Discussion Archive
Anonymous static archive of the former Mailman list
Anonymous static archive of the former Mailman list
Re: [ULF-1] Modern Adhesives vs Plan callouts
Sorry, I hit "send" before proofreading. FPL-16A is mixed 10:1 by VOLUME, not by WEIGHT. Chris On [phone]:14 PM, Member 18 wrote: > * I manufactured a set of Acro Sport Wings with FPL-16A Adhesive and > found it to be an excellent adhesive, The thicker resin is brushed on > one part and a thin watery part wiped on the other part to be joined > then pressed together,* > > This is NOT how to use FPL-16A. It is mixed 10 parts resin to 1 part > hardener by weight, then applied to the surfaces to be joined. I > believe what you describe is a technique for a resorcinol glue of some > kind. BTW, FPL-16A, when mixed 10:1, is an excellent adhesive and most > of today's commercially available epoxies owe a lot to its basic > formulation. > > Chris > >> >> *Lonnie Prince* >> * >> * >> In a message dated [phone]:57:18 PM Eastern Standard Time, >> [email] writes: >> >> Hi Austin, Welcome to the Build forum! We built all the airframe >> components on our ULF-1 NT/E (stands for new technology and >> electric motor powered) with System 3, T-88. We searched far and >> wide and decided on this epoxy. The only thing we did not like >> was the delta T on this glue. When you heat it up (needs to be >> heated up a lot!), it loosens up. Now this can come in handy when >> you make a mistake and have to take something apart! Saves having >> to rebuild a whole assembly in some cases. We also liked that >> T-88 was a little bit more flexible when compared to West Systems >> epoxy. We mixed up all our epoxy by weight using an electronic >> gram scale. If you use too much hardener for example, the glue >> will set up way too soft. Where we had to thicken the T-88 we >> used cotton flox which is structural. We are using West Systems >> epoxy on all the fiberglass parts such as the spoilers and >> fittings. Hope this helps! Member 72 Sent from my iPhone > >> On Mar 26, 2018, at 4:23 PM, Member 111 >> <[email] <mailto:[redacted]>> >> wrote: > > Hi again everyone. > > I've noticed that the plans >> call for aerodux resorcinol urea formaldehyde glue in the >> construction of ribs and even the spar cap laminations. I've read >> of some other builders substituting T-88 for all adhesives in the >> aircraft, and wanted to get other ULF-1 builders' take on the >> question. > > Also, several parts of the build manual call out >> "thickened" epoxy, but do not state the ratio of thickener to >> epoxy. The use of cotton flakes which I take to mean flox is also >> mentioned. Does Dieter intend to refer to what ratio system 3 or >> West Systems recommend? > > Austin > >> _______________________________________________ > ULF-1 >> discussion list -- [email] > > Subscribe, >> Unsubscribe, Preferences, List information: > >> http://lists.ulf-1.com/listinfo.cgi/ulf-1-ulf-1.com >> _______________________________________________ ULF-1 discussion >> list -- [email] Subscribe, Unsubscribe, Preferences, >> List information: >> http://lists.ulf-1.com/listinfo.cgi/ulf-1-ulf-1.com >> >> >> >> _______________________________________________ >> ULF-1 discussion list [email] >> >> Subscribe, Unsubscribe, Preferences, List information: >> http://lists.ulf-1.com/listinfo.cgi/ulf-1-ulf-1.com > > > > _______________________________________________ > ULF-1 discussion list -- [email] > > Subscribe, Unsubscribe, Preferences, List information: > http://lists.ulf-1.com/listinfo.cgi/ulf-1-ulf-1.com