HEAT

I have a question for anyone out there. When sanding your fin boxes flush after your hotcoat, do you ever get smearing from the box material? I am thinking that I must be overheating / oversanding the box (10.5") and the material is actually melting and smearing all over the place…its a real pain to clean up! It seams like it would take years to flush up the box if you can only make one or two passes with the sander before you have to give the box time to cool off??? Any and all help is appreciated! p.s. I guess it doesn’t help that my tin roof shapin shack is currently 109 degrees inside…anyone have an old AC they want to get ride of…

Todd: Yep, you’re right. The slower speeds you use to sand down the hot coat safely and finer grit 80-220 papers are all part of the problem. Try using a 40-60 grit paper or a hard backed disc on your same grinder/speed when taking down the box and I think you will find that it cuts faster with less heat. Too much heat is no good because it is transferred from the plastic box to the foam, the resin and the cloth around your box. Just watch out with the heavy stuff cause you can bite through the cloth a lot easier. Good luck. Tom S.>>> I have a question for anyone out there. When sanding your fin boxes flush > after your hotcoat, do you ever get smearing from the box material? I am > thinking that I must be overheating / oversanding the box (10.5") and > the material is actually melting and smearing all over the place…its a > real pain to clean up! It seams like it would take years to flush up the > box if you can only make one or two passes with the sander before you have > to give the box time to cool off??? Any and all help is appreciated!>>> p.s. I guess it doesn’t help that my tin roof shapin shack is currently > 109 degrees inside…anyone have an old AC they want to get ride > of…

Well not sure if this help you now, but I glass and hot coat right over the fin box. I cut a thin strip of tape that is just wide enough to cover the opening and glass right over it. When the resin sarts to kick I take an exacto and cut out right to the tape line. But, for your problem now, I suppose that you could use a small hand plane to take it down flush

…I use 36grit at low rpms.Herb

…I use 36grit at low rpms.Herb . …and a bucket of cold,wet towels.

Thanks guys! Back to the racks! ToddO