Whats the best way to clean rustic slate

[aliprid]

Hi guys first post on the fourm so go easy, i am currently 2 years into a selfbuild and I have had my mate lay rustic slate from classic flagstones. The tiles are very heavly rivened in places and also contain alot of iorn staining so far i have been going over them with a sponge and water , i have scrubed the real dirty one s with a brush. How many time should i go over them ? And how do i know they are clean enough to seal before they get grouted? Cheers alistair

 

[beanz]

If you're happy with how they look when dry, I'd say you're good to go.. If not, maybe get some advice on cleaning products for slate. I'm afraid I can't be of anymore help to you, but hopefully someone in the know will be along shortly (ahem... Dave! Lol). 😉

 

[Dougs Third Go]

what sort of dirt are you trying to clean off them? adhesive staining, foot traffic dirt etc?

 

[aliprid]

Mainly quarry dirt and dust from cutting. I am going to seal before grouting with OLE-REPELLA any tips on how to apply it.
Cheers ali