Checking the pH of the alkali bath

Published May 16, 2018, 5:10 p.m.

Degreasing requires a good alkali soak and a bit of agitation, so here I'm just checking the solution of NaOH is sufficiently alkali.

Checking the pH of the alkali bath

This photo is found in the following galleries:

Heated alkali bath setup Making elliptical enamel plaques Checking the litmus paper