Rutan has disproved hard-shelling Puffer recommends against hard-shelling ..........................................................
Thanks Larry C When you quote these guys you have my full attention. Like Larry F, I would really like to understand what actually happens - why this is any different from any other 2nd lay-up. We may be missing something here - what is actually causing the problem? Where does the delaminations occur? Do we find the cloth separating from the micro surface, or do we find the micro coming away from the foam? Not sure this makes a whole lot of sense, but maybe the action of sanding the "hardshell" micro somehow disturbs the bond with the core material and this promotes later delamination (at this level). I.e - the separation occurs at the core material, but this failure is in some way caused by the two step process. Cheers Steve J Zambia
