Will mullite break along a score?

Cliff Swanson · Post by **Cliff Swanson** » Tue May 06, 2003 5:32 pm

I have a couple of the BE mullite damz that I'd like to make a bit shorter to fit into my 8" Aim kiln. Will they reliably break along a score line when hit with a hammer or pressed over a dowel? Which method recommended?

Cliff

charlie · Post by **charlie** » Tue May 06, 2003 5:35 pm

maybe. maybe not. how lucky are you?

tile saw.

Tess Farley · Post by **Tess Farley** » Tue May 06, 2003 6:51 pm

It would be best to cut it on a wet saw. If you don't have one, take the dam down to your local stone quarry or masonry center and let them cut it for you.

Phil Brown · Post by **Phil Brown** » Tue May 06, 2003 7:24 pm

Your local tile store/installer would probably cut it for next to nothing. Or someone that installs stone countertops.

Wait, wouldn't one of those brown dry masonry-cutting blades work, if you went really slow? I'm talking table saw or skilsaw- those brown composite type "blades". I think that would work. They make hacksaw type blades that cut ceramic tile, that might work too.
I would saw it before I'd try to snap it on a score.
I agree with Tess that wet is best bet. Is that a Bob Dylan line?

Related question to the group: does it screw up a bandsaw/ring saw/wire saw diamond blade to cut these more clay-based, ceramic and refractory materials? I cut kiln shelves up on my MK tile saw and use the same thin lapidary blade to cut glass. How bad is that exactly? I use a thin lapidary blade.

I want a tool area here for us gearheads....

Phil[/b]

charlie · Post by **charlie** » Tue May 06, 2003 7:31 pm

Phil Brown wrote:Your local tile store/installer would probably cut it for next to nothing. Or someone that installs stone countertops.

home depot. $.25/cut

Wait, wouldn't one of those brown dry masonry-cutting blades work, if you went really slow? I'm talking table saw or skilsaw- those brown composite type "blades". I think that would work. They make hacksaw type blades that cut ceramic tile, that might work too.
I would saw it before I'd try to snap it on a score.
I agree with Tess that wet is best bet. Is that a Bob Dylan line?

yes. you can get a masonary blade for a skilsaw for very little. wear breathing apparatus, or you'll be puking brown stuff for a while. damhikt. don't use your table saw unless you're fond of buying motors for it. damhikte.

Related question to the group: does it screw up a bandsaw/ring saw/wire saw diamond blade to cut these more clay-based, ceramic and refractory materials? I cut kiln shelves up on my MK tile saw and use the same thin lapidary blade to cut glass. How bad is that exactly? I use a thin lapidary blade.

no. but cutting metal will.

I want a tool area here for us gearheads....

Phil[/b]

Brian and Jenny Blanthorn · Wed May 07, 2003 4:16 am

An ordinary hack saw will work OK

Use an old one

Cut it wet

It is very soft