Homebrew PCBs

> just wondering, a small wave soldering machine, would it tin a board  
> without soldermask properly so it can be populated or would the 

My tinning method - "paint" on solder paste then use hot air gun.

High grade water soluble plumber's solder paste is fairly cheap and 
works very well. It can be thinned with water before painting on. The 
trick is to use thin layers just as when painting. That way you control 
bridging and blocking of holes. Just wash off residues with water when 
done. It was used here;

http://www.pbase.com/eldata/image/46673206/original

I've also tried Cool Amp, Tinnit and solder pot methods similar to what 
you're questioning, sloder paste is the way to go.