Question:
How do I refire a glazed piece ?
Reglazing fired pieces
To re-glaze a fired piece you need to do one of the following:
Spray the piece with spray starch, let dry, then reglaze.
Spray the piece with sticky hairspray (usually the cheapest you can find), dry, reglaze.
Heat the piece first, with a heat gun or in the oven or kiln, then apply glaze, (my favourite).
Brush white (Elmer's) glue on, let dry, reglaze.
Microwave the piece for 30 seconds. (Some potters say this makes a huge difference, and the piece doesn't need to actually get or stay hot)
Add some suspension agent to the glaze (CMC gum or Bentonite.)
Add some detergent / shampoo to the glaze (baby shampoo is good because it doesn't foam)
To improve your odds further, wash the pot first with ammonia or detergent, wearing rubber gloves, and don't touch it. The oils from your fingers can prevent glaze from sticking.
And... Don't use too much of anything. If you get the coating too thick, you may prevent adhesion instead of encouraging it.
refire a glazed piece
If you plan to refire a glazed piece and need to stilt it, coat the bottom with a light coat of clear glaze. This will give the bottom a texture and keep it from slipping of stilts.
Pinholes in glaze
Pinholes in glaze can be caused by under-fired bisque, applying glaze on greenware or firing too rapidly. Sometimes these holes are in the greenware and should be rubbed out before firing. If pinholes appear in the glaze, fill the holes with glaze and refire.
Refiring on stilts
If you are going to refire a piece of glazed ware, but are having difficulty making the stilts stick to the bottom, try glue. The glue will not effect the piece and fire off.
Refiring crazed ware
If you have a piece that has crazed after firing, you can often correct this by refiring your piece a cone or two hotter than the original firing.
Reglazing a piece:description
First, note that this process is never predictable. In most cases you can make a new piece in less time than you can spend re-glazing it, with much more predictable results. But sometimes there is that piece you can't part with and really want to re-glaze. Here are some things you can try to increase your success rate. The goal, of course, is to get the new glaze to stick to the old glaze.
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| Guru Spotlight |
| Jolyn Wells-Moran |
