Last weekend, I was working on filling holes, cracks, seams, etc. on a resin ship hull. I was using Bondo Glazing & Filler putty but it is too thick to get into some of the tiny pin prick holes that are shown in the following pic. Does anyone have any suggestions for something better but is also easy to sand after it dries? Thanks.
http://img.photobucket.com/albums/v216/icyhusky/DSC00621.jpg
I use Zap-A-Gap (gap filling cyanoacrylate). It isn’t the easiest thing in the world to sand, but not too difficult. You might also try Elmers White Glue. It doesn’t bond terribly well with plastic, but for filling tiny holes and gaps it works pretty well.
You can thin laquer based spot putty with laquer thinner to just about any consitency that you need. Just put a bit on a solvent resitant surface and slowly add the thinner while stirring the mixture. Be sure to do this in a well ventiated area.
Kurt
You can use correction fluid (tippex) to fill tiny holes.
Gunze Mr. Surfacer 500 is the answer to your prayers. It is applied with a brush (use Gunze or lacquer thinner to clean up) and sands easily and as smooth as a babies you know what.
Cheers
Darren
I’m told White-Out fluid makes a dandy filler for small gaps and holes, but don’t consider it vouched for by me, because i haven’t tried it yet.
Any of the Mr. Surfacer products, 500, 1000, 1200, Mr resin - all good for those micro holes.
http://www.swannysmodels.com/Surfacer.html
make the holes a little bigger with a hobby knife or something. this way the filler can get down into the holes.
Depending on how deep the holes are you might be able to get away with using a few coats of primer, sanding between them. It should stick better than Elmers and be thin enough to get into the tiny holes. However, if there is much depth to the bubbles you might end up spending the rest of your career applying the layers of paint.
Curious to know what you end up doing, so please keep us posted.