This diagram shows a typical surface cross section as it might appear, magnified many thousands of times, under an electron microscope. The surface might be that of a fiber, or of a painted wall, or even wall paper. In Line No. 1, rough soil...
This photograph demonstrates the exceedingly fine particle size of Ludox colloidal silica, a new product of the DuPont Company. This picture was taken with an electron microscope. The magnification is 25,000 diameters. This high magnification was...
Periodicals; Chemical industry; Paint industry; Plastics industry; Agriculture; Pest control; Air conditioning industry; Textile industry;
Table of Contents: The steel test tube; DuPont's new blowing agent; The aristocrat of the silica family; Plastics at home; An uncommon carrier; The gardener's one-two punch; New prints from old; Rolling billboards; Report on our 150th year;...
Table of Contents: Nearing the turning point; The importance of color in Fabrikoid; Hunting posted property; How boreholes are drilled; Fibersilk, not a subsitute; Daylight indoors; Viscolac now called Duco Clear Finish; Manufacture of Silica sand;...
Table of Contents: Uncommon carriers; The south's new industry; How silica sand is produced; With the American sea forces; And now, colorful luggage; Proper priming of dynamite charges is important; Salvaging best sellers; Pyralin aid aviation;...
Table of Contents: The company's tenth president; Bleaching by the mile; The metals industry and DuPont; Story previews; Steel...and your sewing machine; Bottles can be packages; U.S. 40 follows Buffalo Bill's trail; Revolution in the hen house; Rx...
This is a test strip of carpet, portions of which have been treated with Ludox collodial silica. After vacuuming, treated areas emerge clean, while untreated portions remain dirty and dingy.
Here is a sample of wall paper, half of which has been treated with 'Ludox' colloidal silica. The entire surface has been heavily soiled with ordinary house dirt sweepings, then wiped with a clean cloth. The treated half emerges fresh and clean,...
Ludox colloidal silica, a product of DuPont research, is rapidly being adopted by the carpet industry as a soil retardant. It is easily applied at the mill by a multiple spray method, as shown here. Tiny, smooth particles of the Ludox fill up the...
