Hardware merchandising March-June 1917 . al elements ofpainting success. Different Woods Present Different Con-ditions Of all the surfaces for which paint isused, wood is the most difficult to actu-ally gauge, composed mainly of ligno-cellulose, it also contains water, extrac-tives and mineral matter. Water andthe extractives are naturally repellentof paint and as a result great care isnecessary to overcome these kinds of wood, too, each pre-sent their several difficulties. For in-stance, the yellow pine so much usedfor building in some parts carries an ex-cessive amount
Hardware merchandising March-June 1917 . al elements ofpainting success. Different Woods Present Different Con-ditions Of all the surfaces for which paint isused, wood is the most difficult to actu-ally gauge, composed mainly of ligno-cellulose, it also contains water, extrac-tives and mineral matter. Water andthe extractives are naturally repellentof paint and as a result great care isnecessary to overcome these kinds of wood, too, each pre-sent their several difficulties. For in-stance, the yellow pine so much usedfor building in some parts carries an ex-cessive amount of moisture, and topaint direct on the green surface iscourting failure. It has been found by-experience that the best method ofhandling this particular wood is to letit weather for some months. This treat-ment hardens the natural sap and eva-porates much of the water. It is pos-sible then to clean and paint and be as-sured of a successful job. Spruce is another wood much used inConfined on page 77. April 7, 1917. HARDWARE AND METAL 79.
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