Mix well, Before using-It is adviseable to shake. The use of this 10% dispersion has the advantage that workmen are less likely to use excessive amounts. In actual use-in Laboratory work one to t wo drops from a medicine dropper will be found to be highly effective on lab cooks (resin esterification reactions) involving 2500 g. In Factory Size Cooks-500 Gal Kettles-5 c.c. (one teaspoonful) will break the foam that starts forming at about 375'F on the initial up-heat. Amounts in excess of 10 parts per million are to be avoided. Amounts over this can have disastrous surface effects, such as cratering, silking, floating, etc. of organic coatings.