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Posted: Wed Jul 12, 2017 12:29 pm
by Jakeroo
Hi
My first post here.

We've been asked to clean scratched Blue slate paving in West London but as expected the cleaning did not improve the looks and the installers/design company is looking for an alternative solution for replacing all the scratched slabs.

The slabs have been down for a year and other contractors and scaffold damaged the slabs ind in places they've tried to polish it out with wire brushes or pads and it created the milky white strips.

The surface is not smooth and the repaired surface will have to match this.

Are there any proven methods and if so how/what are they please?

This is the DropBox link to a few images. If it doesn't work I'll try the images individually.

Thank you in advance for you help.
J

DropBox link

Posted: Sat Jul 15, 2017 12:30 pm
by Tony McC
These marks will have to be 'rubbed out', using progressively finer grades of abrasive powder. It's akin to the way that scratches in paintwork on fancy cars is caried out, and it's best done by someone familiar with stone.

There are some monumental masons (yes: the graveyard guys!) who are skilled in this technique, and also some of the better granite kitchen installers. In West London I suspect there's no great shortage of fancy, more-money-than-sense kitchen installers, so I'd start by ringing around a few of them to see who can help.