The application of silicone films to the surfaces of glass containers, and a comparative study of their effect on mechanical strength

JSGT 1958 V42 T204-T210

Silicones were applied to the glass containers by spraying aqueous emulsions of the silicone esters at different positions in the annealing leer. The treated jars were then subjected to impact tests, both before and after being mechanically abraded. Samples of untreated jars were also taken, and comparative tests carried out on them. Results showed that the normal sorting process was sufficient to cause a large decrease in the mechanical strength of the untreated containers, because of surface abrasion. Silicone films helped to prevent this and minimized the subsequent handling effect.

D. T. Bumpsteed