Putty - I can never seem to get it right.
I was hoping someone could enlighten me on my horrible techniques.
I've tried Tamiya putty (tube type, semi-liquid), and Millliput (two-part clay-like epoxy putty).
The problem is - no matter what I do, gaps always seem to appear between the model and the putty.
If I plug the seam with putty, wait for it to dry, then sand... The putty "flakes" off when sanding. I think this is due to the putty not "sticking" to the plastic/resin.
If I wipe the putty with nail polish remover (Acetone), the putty also comes off the model, leaving a slight depression and a visible seam line.
If I don't wipe so much so that it leaves a depression, leaving a little putty slightly above the model surface, there is still a seam line visible where the putty joins the model surface. What to do?
Everywhere I've read people don't seem to have these problems. I have given up on putty, but my next model absolutely needs putty to fill in the gaps. (The model is non-plastic. It's some kind of ceramic/porcelain cast model. It's a very light grey, almost white; very heavy and brittle. Is that resin?)
I've been trying and experimenting but I'm getting awfully frustrated. Is there a secret, or am I just doing it wrong?
I was wondering also, if there was some kind of glue that can be used to fill huge gaps. Something sticky, can be squeezed from a tube, extremely viscous (like goo), dries hard for sanding, drilling... You get the idea? Is there such a glue around?
Superglue is just too thin/watery to be used to fill gaps...