Cutting honed slate?

[r896neo]

I have got some 600x300x15 honed slate floor tiles to lay and i hadn't anticipated cutting them with a 5 inch grinder and good macrist blade would be a problem.

Appearently it is though and when trying to cut a small 40mm slice off the end of one the slate cuts fine but it has a tendancy to split along the natural seems. i.e. it cracks along its 15mm dimension to leave 2 or 3 thinner sections.

Thats confusing so imagine i end up with a 40mm length of tile and when your look at it on edge there are splits.

Any advice?

 

[tictic]

score it first in a dry cutter, then cut in a wet saw with a good blade..

 

[tictic]

the 40mm slither/rake....is this the bit you intend to fix to the floor??.

 

[r896neo]

It's actually for a small ledge to fill the gap between bath and wall, but i am using a sliver of the slate floor tile here.

I imagine when it comes to cutting bigger bits off the tiles it won't be so much of a problem but it certainly didn't go as i expected.

I have a few extra tiles as i thought my plan for the sliver might be a problem. I assume trying to score and snap them on a cutter wouldn't work either?

 

[skitzee2k]

Scoring and snapping would make the problem even worse.
Is the blade quite old? This may be the problem. If you buy a brand new diamond wheel, a Norton Super Gres is a good one, you should be fine.

Try scoring and then cutting like the guys have suggested but it may be time to get a better wheel

 

[r896neo]

Its the 3rd cut with this blade. It is a brand new good quality macrist.

I don't think scoring will help as the cut is perfectly clean it's more the delaminating of the slate.

I will borrow a wet saw and see how i go.

 

[skitzee2k]

So is it low quality slate? I have never known honed slate to do that is all. I am guessing it is calibrated which normally means a little more strength than what you are describing. Let us know how you get on with the wet cutting.