Larry that sure sounds like a ton of work and on the heavy side. Try this next time and see if you like it better. Instead of using epoxy with microballoons use water based urethane finish. It dries very hard and fast. It sands beautifully and you can sand it in 30 to 45 minutes depending upon weather conditions. It doesn't smell and can be cleaned up with water.
If you like no grain showing you can still mix micro balloons with it but I haven't found that to be necessary. You can paint the bottom with Krylon after you have wet sanded the final coat of urethane or you can add a few drops of food coloring to the urethane to produce a transparent tint which also looks quite nice. Try it. I'd be surprised if you ever went back to using epoxy for this purpose again. Ed ----- Original Message ----- From: "Larry Taylor" <[EMAIL PROTECTED]> To: "Steven Bixby" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]> Sent: Friday, November 08, 2002 11:27 PM Subject: [RCSE] Finishing Obecchi Covered Wings > Tips I picked off here on this Exchange that I used to finish my first > Obecchi covered wing. I didn't know if the Obecchi had been sealed before it > was bagged, so I took the stand that it had not been done and that I needed > to be carefull of what I put on it. > > I got a Tip from Jim Thomas for finishing Obecchi covered wings. I tried it > and I'm sold on it. I only filled in the top of the wing and than spray > painted it. It came out nice and smooth. No grain in the paint. > > Here is how I did it. > I bought some West System Epoxy Resin 105, and had 205 on the shelf. 206 > would be a little slower. I just used what I had. > Note: I have always used that 50/50 epoxy you get at the Hobby Store, > never again! I would have to wait 2 or 3 days before I could sand it, and it > was hard to sand. The West System set up in 10 minutes. and I was sanding in > 3 hours. It was a whole lot easier this time. > Room Temp was 80 Deg. > Fan blowing out side air at me. > Large glass of Ice Tea. > Ok back to the TIP. After mixing up about 1/2 oz of West System, mix in > Micro Balloons till its is thick like Mayonnaise and pour the whole thing on > the wing and spread it out. Scrape as much off the wing as you can, and than > spread it on down towards the tip. Half oz is about all you can work with at > a time. Mix up another batch and continue till you have the wing done. You > will have mixed 4 or 5 batches After about 3 hour you can sand the wing. I > used 400 grit on a Palm Sander and I sanded in a small circle method. It > sanded nicely. I went over wing again with the West stuff and filled in > spots that needed it. Sand again then spray paint primer sand again. Primer > coat again than sand with 600 grit by hand. Than apply 2 coats of colored > paint. Wait a week or 2 for paint to cure then buff out. It will be smooth > and shinny. > I can't find Krylon paint here any more ,so I went down to PePboys and > bought their Classic Lacquer Spray paint. Dry's fast and you can paint again > in 20 minutes. > I wanted the bottom of wing to be dark. I sprayed a light mist of flat > black Krylon paint that I had on the shelf 3 or 4 times. I was told you > could do this and it won't mess up the foam. It did work for me. Just don't > put it on thick!! > Just my 2 cents worth. > Larry Taylor KF6JBG > E-Mail [EMAIL PROTECTED] > Web http://home.earthlink.net/~cvrcsoaring/cvrc.htm > New Club Web Site: www.cvrcsoaring.com > ----- Original Message ----- > From: "Steven Bixby" <[EMAIL PROTECTED]> > To: "RCSE" <[EMAIL PROTECTED]> > Sent: Friday, November 08, 2002 5:28 PM > Subject: Re: [RCSE] Obecchi? > > > > I have an Airtronics Peregrine kit to be built (err... assembled) yet, and > I > > haven't decided whether I want a wood finish or a painted finish on the > > wings. For a wood finish I'd probably go with water-based Varathane, > > adding a little paint for trim. > > > > But for an opaque finish, I'm wondering what others like to do - paint the > > whole thing? Cover with an iron-on covering? Naturally I'd like to > keep > > it light, so covering probably isn't a good choice. > > > > Suggestions? > > > > > > > Obecchi is stronger than Balsa but weighs a little more. It makes a good > > sheeting, over foam, > > > and is easy to paint with water base Verithane and then wet sand,after > > about 5 coats, to > > > a really nice finish. The grain can be beautiful if you like wood grain > > which I do. > > > A good way to finish a foam wing. > > > Regards, Art > > > > RCSE-List facilities provided by Model Airplane News. Send "subscribe" > and "unsubscribe" requests to [EMAIL PROTECTED] Please note that > subscribe and unsubscribe messages must be sent in text only format with > MIME turned off. > > > > RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. RCSE-List facilities provided by Model Airplane News. Send "subscribe" and "unsubscribe" requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off.
