Just wondered how to adequately specify jointing mix for pointing slate slabs for a grey finish - would this be grano joints?
Specifying grano joints (i.e. grey for slate)
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84-1093879891
You could use grano, but it's not the easiest material to get to a smooth finish, especially on narrow joints. If you are dead set on having a grey-ish joint, then you could use a silver sand mortar and add black cement dye to obtain the required shade. This would give better adhesion in the joints, and a smoother finish.
What colour is the slate? A dark mortar often looks really good with slate paving.
What colour is the slate? A dark mortar often looks really good with slate paving.
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84-1093879891
I'm familiar with the Delabole slate, and it's one of the nicest in Britain, even though one of the images they use in their publicity material shows it laid with blindingly white joints!
Using a grey or a dark brown/black mortar will help emphasise the slate and not the pointing. Grano tends to dry a very bright colour, like a greyey-bluey-white, so go with the darkened mortar.
If you have any piccies, we'd love to see them. I've just added a help file on Posting Images - see the HELP link at the tiop of the page. :)
Using a grey or a dark brown/black mortar will help emphasise the slate and not the pointing. Grano tends to dry a very bright colour, like a greyey-bluey-white, so go with the darkened mortar.
If you have any piccies, we'd love to see them. I've just added a help file on Posting Images - see the HELP link at the tiop of the page. :)