i had recently started work on a 120mm airborne miniature resin kit and had run across a way to hide join lines without having to go crazy with putty and sanding. in fact, no sanding was done.

obviously when you have to fill gaps that are too big, you cannot get around using putty. but, i have actually gotten away with no use of putty simply by using fast drying thin CA glue.
i actually ran into this by complete accident when doing completing the assembly. the thin CA glue comes out of the bottle so loosly, its almost like water and goes into recesses nice and easy. so. by using the thin CA glue, i applied it to all of the join lines such as arms and legs where the parts made the connection to the body. it has filled any gaps that are there and needs no sanding since it applies so thin.
not the greatest picture in the world, but with this picture, there would be a join line straight down from the butt pack and at a different angle from the crease in the pants that you see.

Hello,
I do this myself instead of using putty. To accelerate the curing time of the CA glue I also use CA accelerator/activator in a spray can.
It is very efffective and nearly immediate.

Olivier

I find that thin CA glue works great for filling in shallow gaps much better then Squadron putty. It also doesn't shrink which is a big plus. It's biggest disadvantage is that it can't be used on curved surfaces as it's self leveling.

actually, if you use the really thin CA glue, you dont even have to worry about it because it is really too thin to gather that much unless you are using too much glue. One drop would be enough and with a large enough area, wont be able to gather in any of the curved surfaces.