Paving mortar dilemma

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I need to lay some white mint indian sandstone. They are really light in colour, almost white, and I am concerned that over time the yellow from the sand will leach through and stain the slabs. I intend to prime the back with a slurry of snowcrete and SBR, which should help I guess. I have a choice for bedding mortar: yellow sharp sand or nearly white building sand. I'll probably use snowcrete again, since its a small area. I'd prefer to use sharp for strength,but white building sand for colour. Its getting laid on a thick bed of whacked type 1, about 200mm since it was low to start with.

Interested to know what others would / do do.

Thanks
 
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I’d use the sharp sand
You could joint up using something else like Geofix or a custom coloured building sand mix , so the colour of the bedding layer doesn’t matter
 
I’d use the sharp sand
You could joint up using something else like Geofix or a custom coloured building sand mix , so the colour of the bedding layer doesn’t matter
custom coloured? dye? :eek:
 
as above , the mortar shouldnt matter so much . most important thing with natural stone is a full bed .
 
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Not really fussed about pointing. Probably a bog standard grey mortar to contrast the slabs. Just dont want my white slabs to develop a yellow tinge
 

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