636 



Popular Science Monthly 



well painted. By so doing, the value of a 

 property increases at least 25%. If 

 wooden structures are left bare and ex- 

 posed, the surfaces become roughened 

 and the wood is subjected to warping 

 and cracking. When dampness enters 

 such exposed wood, conditions become 

 favorable for the action of destructive 

 fungi and rotting may take place. Ap- 

 plication of good paint, however, will 

 preserve wood almost indefinitely. Strik- 

 ing illustrations of the truth of this state- 

 ment are afTorded by the condition of 

 those well painted, century-old dwellings 

 to be found throughout the original 

 colonies of this country. Moreover, 

 paints not only decorate and preser\'e 

 wood, but they make it more resistant 

 to fire. For this reason, the application 

 of paints to shingled roofs is often ad- 

 visable. For instance, prepared paints 



Wood 



contain 60% to 70% of non-combusti- 

 ble, metallic or mineral pigments. When 

 such paints are applied to shingles a 

 very waterproof, semi-metallic film re- 

 sults. The film smooths the rough, 

 fuzzy surface of the wood and prevents 

 warping at the edges, thus doing away 

 with the formation of pockets in which 

 hot cinders, blown from a passing loco- 

 motive or carried from a neighboring 

 fire, might lodge. 



Paints for Various Surfaces 



Painting the exterior or interior walls 

 of a dwelling constitutes only a part of 

 the many uses for paint. Painting 

 metals of various kinds, varnishing and 

 staining woodwork, and many other ap- 

 plications call for the use of an immense 

 variety of paints and finishes. A list 

 of many of these is shown in the chart. 



PAIXT 



FOR 



EXTERIOR 



SURFACES 



^ Stone 



Brick Walls and Fronts. 



Cement and Concrete Structures, Ball Parks, 

 Pavilions, Stucco on Brick or Frame, 

 Cement Tanks, Posts, Silos, Culverts, 

 etc. 



Same as Class "A" or Prepared Red Iron Oxide 

 Paint. 



Prime with 25% Water solution of Zinc Sul- 

 phate (to neutralize alkali). Dry and ap- 

 ply Class "A" Paint or Cement Coater. 



PAINT 



FOR 



INTERIOR 



SURFACES 



^WOOD 



Metal 



vStonb 



