The Golden State: Where & How to Live, Secure, Visit, Enjoy and Thrive in California
Furniture Finishing
Livcring is a chemical reaction which causes a paint, varnish or lacquer material to take on a viscous, rubbery appearance. Varnish seldom livers alone and lacquers only as result of evaporation when container is opened, or when let stand with bronze powders. Livering in general is traceable to attempted or prolonged mixture of hostile ingredients.
Orange peeling is also known as "pock-marking" and is seen when the sprayed varnish or lacquer fails to lie down smooth. This may be the result of spraying the material with incorrect or without enough thinners, or of improper adjustment of spray nozzle, or using too much air pressure at the nozzle of the gun.
Pinholing occurs when tiny holes or pits appear in the wet varnish film before it dries. The condition is usually the result of improper filling of the pores in the veneer, or premature application of the varnish over insufficiently dried undercoats.
Pitting results when moisture or oil get into the air line and is mixed with the finishing coat as it is sprayed, giving it a pitted or ringed appearance on the work. The remedy is an oil and water separator attached to the spray booth.
Printing is brought about by applying sufficient pressure with or without heat to a varnished surface to make an imprint. It is virtually impossible to make a completely print proof varnish, but good print resistant articles are available and the rest is a matter of careful packing, avoidance of waxed wrapping paper, dead air summer storage, and proper finishing. A thin coat will be less likely to mar than a heavy coat. Lacquer finishes, while not entirely alcohol proof, are genuinely print proof.
Runs or Sags appear when an excess of material is applied or the material has been thinned too much. Pick up with a soft bristle brush all runs or sags before the finish has a chance to set and revamp method of application or thinning.
Sweating is a condition under which a dull rubbed varnish takes on glossy spots or streaks after being rubbed. Premature rubbing is the principal cause but too much varnish and the use of too fine a pumice stone may also contribute.
Furniture Decoration
SPRAY SHADING
The impression to be avoided is that of a light oval, circle or square for which reason it is best to do the work in two applications, correcting any mistakes in the first after it has dried. Holding the spray on a given corner in order to compress the shading into one operation may cause the stain to puddle or blotch which, must be evened up by sandpapering, a risky remedy. The same is true of results from dirtv material lines or a "spitting" gun. Air pressure should run 50 to 60 pounds according to the type of equipment and must remain uniform after starting.
