What is the difference?

Troy, OH

Between firing bisque at 04 and 06? I've always fired at 04. I ran out of those cones, so today I used 06. I know quite a few people who use 06 for bisque. Does it make a difference?

Gilroy (Sunset Z14), CA(Zone 9a)

The clay is somewhat softer at ^06 than at ^04. It will typically absorb a little more glaze, be a bit more fragile and scratch easier. Most low-fire loads are bisqued at ^04 and then glazed at ^06. For mid-range (^5/^6) or high fire (^9/^10) it probably doesn't make much difference.

However, for low fire pieces you always want your bisque to be at least one cone hotter than your glaze. So if you're glazing to ^06 you should probably refire that load to at least ^05 before you glaze-fire it.

Troy, OH

I am firing glaze to ^6. I always thought it was the norm to bisque at 04. Than when I started seeing people say they fire to 06, I was wondering what the difference was. So now that I have fired to 06, do I put the glaze on thicker? Will it affect the color?

Gilroy (Sunset Z14), CA(Zone 9a)

Nope and nope! Just be a teeny bit more careful handling your pieces when you're dealing with handles or glazing the insides, because I have found that attachments are just slightly less secure, and large pieces with glaze on the inside are a little more fragile when they get wet. It's really hardly noticeable. If you're mid- or high-firing, anything between 06 and 02 is fine. I've done them all at various times.

Troy, OH

Thanks. Most of what I'm doing is flat tiles. The other thing is a tunnel to put in my aquarium. Great to know I can use lower temp cones to bisque.

Another question, I'm doing an orange car and trying to figure out what would be a good background color. Don't really want to do black, the whole Halloween colors. The orange is a bright orange. Any suggestions would be greatly appreciated !!

Gilroy (Sunset Z14), CA(Zone 9a)

I'd suggest dark blue or purple. They're close to opposite orange on the color wheel and will probably look great together!

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