LIQUID WOOD FILLERS FOR CHEAP WORK.
Corn starch and cheap varnish are the principal ingredients of many cheap wood fillers; the corn starch is mixed with the varnish and thinned with turps until workable. You can experiment on this idea.
Corn starch in shellac in proportion of 1 pound to the gallon doubles its capacity as a filler. I have made and used a filler for cheap work in this way: Pale rosin, 2 pounds; boiled oil, 1 gallon; japan, 1 pint. Melt the rosin in the oil, take the kettle outside, and add ½ gallon turpentine; stir and when cold add ½ pound of corn starch. Thin with turps until workable. Add more or less starch, according to the surface you want to fill. These mixtures are all the better if run through a paint mill.