This is part two of a three
part tip on removing kiln wash from glass.
Click here to see part
4. More aggressive, but also more
likely to scratch the glass, are methods such as the Dremel tool (with a
rotary brush attachment), a carborundum stone, steel wool, or a
wire brush. Whatever you use, make sure you keep the glass
wet while you scrub.
5. CLR or Lime-Away or The Works or
Wash Away and similar products --
these cleaners are mostly dilute solutions of acid (usually
hydrochloric or sulfamic acid). Follow the safety
instructions on the bottle if you try these. Some folks
claim that Lime-Away works the best of the batch, some swear by
6. Muriatic acid -- this chemical,
commonly used to adjust the ph level of swimming pools, is a
stronger solution of hydrochloric acid (around 30%). If
you decide to use this acid, use even more caution -- gloves and
a respirator are best.
One thing to keep in mind is that many of
these acids can slightly discolor the glass (especially clear
glass). And sometimes even a mild solution like vinegar
can change the color of certain opaque glasses. So test on
a scrap piece if possible.
Click here to go to the final section of this three part tip,
which offers my choice for the best way to remove baked on kiln
wash from glass.
Copyright 2005 Brad Walker. All rights
Most of these tips came from
posters on the Warm Glass bulletin board.