Document 700EOqYd7roEvd9ejzg2gBDXo

Sprayed Asbestos Insulotion ?bc spraying c-f asbestos insulation, methods and machines for which have recently boon patented by sevorcl parties, is developing si only. V7hilc it socr.s to be the general opinion that Canadian fibre is not sultablo for this purpose, it has also been stated that relatively long fibro works well, but is .too costly, Waste nowspaper, shreddod in a 6uitablo manner. is being sprayed, but of course it is not fireproof insulation. Tory Cleon Fibre As a result of sene of the conversations with non in the industry, the impression was gained that if very clean fibro, free from all non-fibrous contamination, were mado available, it is very probable that a market could bo developed for it. In addition to a high degree of cleanliness, the othox requirements would be uniformity, thorough openness and good homogeneity. As on example of the possiblo applications whore such fibre could be used to advantage, there may bo citod the use of asbestos as a filtering modium. Asbestos Textiles As tho manufacture of woven brake lining aocounts for such a largo proportion of the asbestos textiles made, it would be valuablo to know the future trond of tho brake lining industry. But a safe forecast cannot be made. A suggestion was heard that if the producers are desirous of maintaining, if not increasing, the consumption of spinning fibres, they should cnoourago tho memufeoturo of woven, as opposed to molded, brake lining. Just how thoy could do this was not made clear, bur/ls c thought. Canadian fibre is not considered suitable for the manufacture of asbestos textiles for electrical insulation, due to its magnetic iron content. Improvement in the cloctxical properties, presumably by the elimination of this impurity, is Thorofpre desired. Because of the apparont soarcity of long fibre of good Gloctrical properties, at least one party havo expressed their readiness to undertake the processing of Canadian fibre as soon as a comaercial method for removing tho magnetic iron becomes cvciloblc'. The Heat Resistance of Asbestos Those was found a considerable intcrost in what might be termed the heat resistance of asbestos. This includes the tempera ture of dehydration, the rate of dehydration at different tempera tures end the effocts of theso factors on the properties of j asbestos fibro and products made with asbestos. Praotically all j grades of fibre are involved, for interest ir. this subject was