> a bagged foam core wing. The skin is 3/4 oz. cloth I hit a wing tip and > now have a compression failure of the upper skin. The > wing is still basically strong in that it not very > flexible where the failure is. I am looking for the > best way to stabilize the area
Here is a technique I have been using and it works very well for this kind of damage and for delamination. You take a small piece of music wire and poke some holes along the crease. use the music wire to poke from one hole to the next and lift the crease a bit. Take some "Elmers Ultimate Glue" (formerly pro-bond) and put it in the bottom of a paper cup. Add a few drops of water to the glue and whip it up, then use a syringe to inject the glue from hole to hole under the skin. You can actually skip every other hole and apply tape over the injected holes, the glue will foam and expand to the next hole. Let it kick of for an hour or 2 before shaving off the overflow. There are alternate methods if you don't have a way to inject the glue: You can squirt the glue in the holes, then squirt water in the holes, then plunge the holes with the music wire to push the glue from one hole to the next. Wipe off the mess with acetone, but don't saturate the rag, just dampen it and work quickly, so you don't damage any foam. You need to complete the application fast, it starts foaming in a couple minutes. I have tried other brands and they don't make a very even or dense foam, the Elmers works best. You can fill VERY Large voids this way. For large damaged areas, pour the mix in the area as it starts to foam, sand to shape after it kicks off, fill with light spackle and then re-glass or just paint if it isn't structural. Mark Mech www.aerofoam.com 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.
