To guide the reader who wishes to purchase ready-mixed house paint, the following facts and specifications regarding outside house paint should prove helpful.
Most ready-mixed house paints, which are designed especially for use on wood, contain white lead and zinc oxide, sometimes in equal quantities, and again with only 10% to 40% of zinc. White lead and zinc oxide together should form 85% or more of the total pigment in white and light-colored paints. The pigment in such paints is usually 60% to 65% of the total weight. The vehicle should be pure raw linseed oil, with just enough high grade Japan drier to dry the paint properly (5% to 10%). Since linseed oil costs more, pound for pound, than many pigments, some paints have more pigment and less Unseed oil. The quantity of volatile thinner, such as turpentine or petroleum spirits, should not make up more than 10% of the vehicle. The addition of gloss oil, rosin oil, fish oil, and minderal oil makes inferior paints. The net weight per gallon (231 cu. in.) of ready-mixed white and tinted outside paints varies from about 15 lbs. to 22 lbs., being highest in an all-lead paint. Dark ready-mixed paints weigh 9 lbs. to 14 lbs. per gallon.
Brushes And Other Painting Equipment
Wall Brushes . . . Woodwork Brushes . . . Calcimine Brushes . . .Whitewash Brushes . . . Dust Brushes . . . Radiator Brushes . . .Roof Brushes . . . Artists' Brushes . . . Angular Liners . . . Lettering Brushes . . . Bristle Brushes . . . Stencil Brushes . . . Stippling Brushes . . . Smoothing Brushes . . . Care of Brushes . . . Other Equipment
BRUSHES
The quality of work depends to a great extent on the tools used. Uniformity of the paint film and its final finish are dependent upon the condition and quality of the brushes. If the brushes are stubby and inflexible, the work will be marred. Brushes of an inferior quality will be a source of annoyance, as the bristles will loosen and stick to the wall. Good brushes, although more expensive at first, will in the end prove economical and satisfactory, in that they will last longer, will aid considerably in producing a better finish, and will save time and effort.
With a comparatively small number of brushes, it is possible to do practically all ordinary painting jobs. If it is necessary to purchase new brushes for specific work, the following descriptions will be helpful in choosing those needed.