Union

sonous fumes developed by the chemical action of the solvent upon the asphalt. In the case of both operations, the asphalt possesses poor bonding qualities when applied to moist surfaces.

With the advent of Pioneer Asphalt Emulsion, the use of asphalt has been materially simplified. Its applicatiori has been made both practical and easy, because it may be used cold, eliminating the problems common to the old processes of heating and re-dissolving. Moreover, its life and protective value have been made more dependable by the new product; since it will neither crack or che,ck at low temperatures, nor flow at high temperatures. It may be ap- plied to either wet or dry surfa.ces with uniform suc,cess. Among its variety of uses are the following: Protection of metallic and other surfaces against rust and disintegration; dampproofing walls, floors and other parts of buildings against the effect of moisture, water and weather; for use as a plasterboard; for renewing the surfaces of all types of roofs; used in the laying of tile, woodblocks and other types of flooring; for the construction of mastic floors by mixing with sand and cement; for insulating boilers and pipes against heat loss; for coating work used in refrigerition constru,ction ; coating pipelines for underground installa- tion; horticultural use in the treatment of damaged or diseased trees.

The lumber dealers of the west are tage of the sales opportunities for the instances, have reported that it offers which to widen their activities in the the building field.

rapidly taking advanproduct, and in many a valuable item with industrial. as well as