TACKY PAINT ON CHURCH SEATS, ETC.
During my experience as a painter, I have been called upon to repaint tacky seats in at least half a dozen churches. Such seats are an unmitigated nuisance. Tacky paint may be the result of putting too much japan in oil paint, or of using fat oil, or paint which had been mixed a long time, especially if it had very much japan in it, or by mixing oil and varnish, or by putting varnish on oil paint, especially if the paint had not been given time to dry hard before it was varnished. To harden tacky paint try this: Take one part japan and three parts of turpentine, and give the work a coat of the mixture. That will usually effect a cure, unless the paint is soft clear to the wood. A coat of shellac will sometimes do the work all right. Such seats usually seem all right until warmed by the heat of the body; hence we may be satisfied that the fault is in the oil used in the paint or varnish. It is best on that account to use but little if any oil when painting seats of any kind. Coat up with color ground in japan and thinned with turps; varnish the part which comes in contact with the body with shellac varnish.
I have painted seats this way, and never heard of any further trouble with them.
To repaint tacky seats the best way is to burn off the old paint, and coat up as above; because, if a hard drying paint is put over the old soft paint it is liable to crack. It is well, however, to see if the turpentine and japan will work a cure, or if a coat of shellac will stop the trouble. To do this it is well to first experiment on one seat, or upon a small surface.
I have killed tacky paint by rubbing it with a cloth wet with ammonia; when dry, try it, and see if the “tack” is gone; if not, go over it again; when dry, put on a coat of shellac varnish; this is a pretty sure cure.