Date: Wed, 11 May 1994 01:16:51 -1000 From: jmac@world.std.com (Jack S Cunniff) Message-Id: Organization: The World Public Access UNIX, Brookline, MA Subject: internal ferrule adhesive? Hi - I know that this is probably an easy question, but I didn't find the answer in the FAQ... I've got some fiberglass spars that I want to join with an internal ferrule made of fiberglass. Are superglue, epoxy, and hot-melt glue my three options? Which works best? Thanks! Jack Cunniff jmac@world.std.com (I can hardly wait until Miller Lite finds a way to combine kites and juggling!) -- jmac@world.std.com DOD #1183 '92 Shadow 1100 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Wed, 11 May 1994 08:22:49 -1000 From: sasaki@das.harvard.edu (Marty Sasaki) Message-Id: Organization: Harvard University OIT/NSD Subject: Re: internal ferrule adhesive? In article , jmac@world.std.com (Jack S Cunniff) writes: >I've got some fiberglass spars that I want to join with an internal ferrule >made of fiberglass. > >Are superglue, epoxy, and hot-melt glue my three options? Which works best? Regular epoxy will probably make the best bond. Superglue can be very brittle, impact can often crack the glue. There are superglues made to be flexible. I use Flex-Zap, made by the same folks that make Zap-a-Gap. Hot melt glue is quick, but it usually doesn't hold that well... -- Marty Sasaki Harvard University Sasaki Kite Fabrications sasaki@noc.harvard.edu Network Services Division 26 Green Street 617-496-4320 10 Ware Street Jamaica Plain, MA 02130 Cambridge, MA 02138-4002 phone/fax: 617-522-8546 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = Date: Wed, 11 May 1994 06:00:37 -1000 From: mgraves@leadingedg.win.net (Michael Graves) Message-Id: <406@leadingedg.win.net> Subject: Re: internal ferrule adhesive? In article , Jack S Cunniff (jmac@world.std.com) writes: >I've got some fiberglass spars that I want to join with an internal ferrule >made of fiberglass. > >Are superglue, epoxy, and hot-melt glue my three options? Which works best? The best option is always to use the epoxy with the longest curing time you can stand, 5 minutes in my case. I once used a 24 hour epoxy, just to see if it made a significantly stronger bond. It might have, but not enough to merit the anguish of the wait. Superglue (cyanoacrylate) works, but has little shear strength. Most commercially manufactured kites use cyc based adhesives. Cyc adhesives work best when the ferrule fits tighly, as the glue itself cannot fill much of a gap. Michael Graves = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =