I use hot glue. The reason is, because it is easy to cut out of the place where it protrudes from the foam. You may be able to do this with the polyurethane also. Just cut out a little valley and sand as normal. Then when you put in your micro slurry, you may want to fill those areas first with a slightly thicker mixture.
Check out: http://krbuilder.org/Aileron/index.html A little more than half way down the thumbnails.. You may get some ideas from this. See N64KR at http://KRBuilder.org - Then click on the pics See you in Mt. Vernon - 2006 - KR Gathering There is a time for building and a time for FLYING and the time for building is OVER. Daniel R. Heath - Lexington, SC -------Original Message------- When I glue two pieces of polyurethane and I filing with sand paper I cannot get nice flat surfaces. The reason is because the glue is much more hardener comparing to the polyurethane.
