Cutting 20mm porcelain 600x900?

[bilabonic]

Hi all

Laying 12m2 20mm porcelain.
150x900 edges are in and even with a 115mm thin 1.4mm blade I had tiny chips. I made them better with a 40 grade flap disc.
I used an RDX super thin disc. -

https://amzn.eu/d/0g9XxvDa

I'm now onto the 600x900 and thinking what's the best process. People saying not to use a 9"
Grinder unless I rent a proper wet cutter.

I ve heard good reviews on the Abracs discs from Screwfix.

I've also been told not to score the disc lightly and cut as u usually would with stone BUT to cut all te way through and ti carry that all the way?

I can add water easily as there's two of us.

Any recommendations greatly accepted.
Laid several full slabs today with 5mm wedge spacers easily enough.

Plus buttered backs with proper slurry etc.

Anyone recommend cut process/disc?
I think I'm being to fussy tbh as I've seen some terrible cuts on other jobs.

Cheers.

 

[matlob]

Hi

Used these ones and they were perfect.

Abracs Tile & Porcelain Diamond Blade

10mm Segment height. For ceramic and porcelain tile cutting. Clean cut. For wet or dry cutting.Expert quality blade designed with X-Tech Cutting technology for porcelain cutting as well as a range of tile and ceramic cutting applications. The continuous X-Tech rim blade offers a combination of...

www.toolstation.com

I cut them dry and there were no chips at all. Not 100% smooth due to the blade but not noticeable for cut edges. Did about 80 linear meters on one blade

I clamped a 5mm deep piece of wood along the cut line and then just ran the disc up it. Hardly any pressure to start with just to break the surface and then another few passes to cut the tile

Just a bog standard angle grinder Ron 20mm. Make sure you get a full bed on them.

For the slurry I just did a SBR and water mix which worked really well. Be mega careful with this as it stains the tiles and is a cow to get off
If you can get help it would be ideal to have one person doing the dirty bits, mixing and slurrying and then one person just laying the tiles as I found it hard to keep everything clean

 

[robinbanks]

I use a knife sharpening stone to put a tiny chamfer on the cut edge, minimises the look of any chips, works really well

I too would recommend a wet cutting saw, and I regard the ones where the table and the workpiece slides and the saw is fixed as giving a better result than the ones where the saw slides on a bridge