I've read most of the posts concerning various types of balsa fillers but my question more in regards to the application of filler. With the models I've built I just can't seem to eliminate the creases between sheeting/planking etc. Am I simply not using enough? The creases are not anything out of the ordinary in terms of width. Is it better to apply filler generously?
Pat

MOST of the lightweight fillers are easily thinned with water.

I usually do the following:

Sand/taper the edge as much as possible first. Then I DAMPEN (not soak or wet) the area. This allows the filler to adhere better. Then I apply the filler. Remember, the filler is going to shrink a little as it dries so you want some excess there to allow for shrinkage.

FWIW - I usually have to thin the filler a little as it is too thick for my personal liking. I usually like my filler about the consistency of a thick pancake batter, unless I have a large area with deep depressions (over 3/32" ) in it. Unless I have really "gooped" the area up with filler, I sand it with 150 or 220 (220 preferred).

Hi!
Never uses the stuff!
Best filler is to use mix of resin (epoxy or polyester) and brown (these are plastic balloons)micro-balloons.

Regards!
Jan K
Sweden

The planking needs to be sealed with something such as thinned doap to hold the planks together. Otherwise when you sand, it pushes the planks down here and you will always show a seem.

Gary

I use an oil painting 'palette knife' It is flexible, and smooth, easy to apply the filler..