18 PAINT TECHNOLOGY AND TESTS 



ANALYSIS OF DEBLOOMED MINERAL PAINT OIL' 



Pine Oil. This oil is produced by the redistillation of the 

 heavy, high boiling point fractions resulting from the steam distil- 

 lation of wood turpentine. It is a heavy straw-colored oil, and 

 should be of some use in the paint and varnish industry, where 

 a high boiling point solvent with an oxidizing principle is desired. 

 It will probably find application in the manufacture of Baking 

 Japans, Asphalt Paints and Enamels. Its oxidizing and solvent 

 values are very high. It has a distinctive sweet pine smell, 

 which makes it popular in the manufacture of turpentine sub- 

 stitutes from petroleum spirits. 



The writer has examined samples of this material, and the 

 following appear to be of the best grade: 



CONSTANTS OF PINE OILS 



Turpentine. By direct fire or steam distillation of the sap 

 drippings collected in pockets cut into pine trees, there is obtained 

 the turpentine of commerce. It consists largely of pinene and 

 isomeric terpenes, and has the property of attracting oxygen, 

 with the formation of peroxides which stimulate the drying of 

 oils. It is a high-grade solvent for various gums, and is therefore 



1 Oil of mirbane present, probably as a deblooming agent, or to mask the 

 odor. 



