Original Posted By: "jimd"
I was kind of wondering the same thing. I have both the Stits process video (fromEAA) and the DVD set from Stewart systems.Stits indicates you put PolyBrush on it, and they have an aluminum etching compoundand two part epoxy. My technical counselor from EAA told me whatever I didto etch it first so you get a good bond. Then the Stits video indicated youattach everything to to the PolyBrushed surfaces with PolyTak, then the clothtape is put on with PolyBrush.The Stewart system one is for using with EkoBond, but was intesting in how differentlythey approached same thing; They put thin felt on using the EkoBond afteretching, then pretty well soaked the felt in Ekobond, let it dry, put clothover it, put the EkoBond on top of the cloth, dryed off excess with blue shoptowels. Then ran iron over it all. Rest of cloth tap was applied over the clothin similar fashion.What I wondered about was, why the aluminum would need to have a 1/2 gallon orso of glue, yet the STC needed at most 3" of glued surface. Seems like both approachsreally involve putting a lot of glue on in places where it seems of marginalvalue.I decided against using Stits products (even though I still have a bunch of themfrom my fuselage/tail covering) due to concern about flammability, smell, andhealth impact of all those things being in my garage. I probably would havestayed with them for the wings other than that.I plan on rib stitching for much higher speed than my GN-1 Biplane will ever go,using wider glued surfaces than required, using glue for all the cloth tapeand having it wider than absolutely necessary. But I don't intend on putting anyextra glue over the aluminum or felt, other than what is needed. I may putlatex over the aluminum, then felt, or even soak the felt in latex, but it willall come down to what works for aesthetics, as I don't see the extra cost buyinganything.Materials to finish up my wings (cover them) with all Stits materials by the bookadded up to around $2500, and I already have a lot of Stits products. Stewartsystems was a bit less but not much. The big thing for me was the cost andtoxicity of Aero-Thane, vs Randolph paints, vs. Latex.. With EkoBond and LatexI am looking at $400 to finish them, no smell, no fumes, no need for a sparklesspaint mixer (latex can be mixed in a cheap kitchen style mixer, picked oneup at a garage sale for $4).Anyway, I digressed, but what are your thoughts?JimRead this topic online here:http://forums.matronics.com/viewtopic.p ... ___Subject: Pietenpol-List: Any windscreen advice?
Pietenpol-List: Any windscreen advice?
Re: Pietenpol-List: Any windscreen advice?
Original Posted By: Clif Dawson
Subject: Re: Pietenpol-List: Any windscreen advice?More thotsIf it comes with paper on both sides, leave the paper on as long as possible. Cutit on the tablesaw with the paper on, Drill it with the paper on. Peel it offonly when you must, In order to heat it. you "polish" the edges with a heat gun, or better yet a small propane burner. itsmooths the edges right out. pretty and no sharp corner.Super glue can be used to glue two pieces of Plex together. Don't ask be aboutthe effect of vibraton on this bond. Blue SkiesSteve ________________________________________________________________________________Date: Tue, 08 Jan 2008 00:20:44 -0800
Subject: Re: Pietenpol-List: Any windscreen advice?More thotsIf it comes with paper on both sides, leave the paper on as long as possible. Cutit on the tablesaw with the paper on, Drill it with the paper on. Peel it offonly when you must, In order to heat it. you "polish" the edges with a heat gun, or better yet a small propane burner. itsmooths the edges right out. pretty and no sharp corner.Super glue can be used to glue two pieces of Plex together. Don't ask be aboutthe effect of vibraton on this bond. Blue SkiesSteve ________________________________________________________________________________Date: Tue, 08 Jan 2008 00:20:44 -0800