I installed a door today which of course was slightly larger than the masonry opening. I used a grinder to cut out the morter next to the old brick moulding. Now I have to go back and morter the gaps. The problem is the stone guys used a tan mortar and the stuff we use is grey. Is there any way I can at least get close for these people?
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Yes. There are powdered colorants that a good masonry supply house would have. For the lighter colors they have to be added to white mortar rather than gray mortar. I used them to make light tan mortar when installing a brown stone on my house. The regular gray mortar would have looked awful.
It's hard to match a color exactly, but you can come a lot closer with that technique than settling for gray.
Another idea is tile grout. Though I can't say for certain it would hold up outdoors, I imagine it would.
I have to tell you what a great idea that is. Never would have thought of that. Great "out of the box" thinking.
roger
you don't say what kind of masonry or how old it is.
Is the old mortar firm and hard or does sand flake out of it and crumble away when you rub or tool it?
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It's a stone front, 10 yrs. old and the morter is hard.
I think I would follow the grout suggestion then
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It should be possible to choose a sand which will produce a mortar of similar colour. Is the rock from a local source, does that quarry also produce sand? This wil produce a neater finish. If a sample of the mortar is put in a jar of water the sand will separate out, from that try to get a match.
grout might be a great choice with their many color samples... you'll be way ahead try'n to match wet to dry...
but HD has some quickcrete liquid colors that (buff) that do a great job... a little goes a very long way...
p