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Old 12-17-2006, 05:33 PM   #16
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Quote:
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Will you be landscaping the home? If so, you are back to that same 99% who will never notice.
You know, that's a good point. Clearly, I'm way to close to this project to form an objective opinion. Perhaps I'll take your advice and save my battles for the things that DO matter. Thanks for your help.

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Old 12-17-2006, 06:47 PM   #17
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http://www.brickstain.com/mortar1.html#
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Old 12-17-2006, 06:53 PM   #18
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Call them for pricing, but be sure to be sitting down.
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Old 07-13-2009, 09:04 PM   #19
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i cannot buy black mortar for a brick job I am doing. How can I tint my mortar?
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Old 07-13-2009, 09:47 PM   #20
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I have seen it as a dark gray but not black so I dont know about that color check with you local supply house

Last edited by clasact; 07-13-2009 at 09:48 PM. Reason: spelling
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Old 03-17-2012, 08:01 PM   #21
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i cannot buy black mortar for a brick job I am doing. How can I tint my mortar?

Adding lamp black dye to the mortar will darken it to a dark charcoal grey.
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Old 06-12-2015, 11:07 PM   #22
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We had an issue on our house and it seems like you might be able to use this solution in your circumstance too. We had two different mortar colors on our chimney and wanted to make them look the same. I found a product called Instant Mortar Match that is intended for that specifically. The company sent us a postcard with all of the color choices, so we could figure out what would work the best. When we received the product, all we had to do was brush it on the mortar joints. It was very simple. Their website is InstantMortarMatch.com. They told us concrete stains should not be used on mortar joints because the acid in concrete stain can damage the mortar by eating at the lime in the mortar.
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Old 04-03-2017, 08:44 AM   #23
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Re: Changing mortar color?


If it was the builders mistake why won't they fix it for you?
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Old 04-03-2017, 12:30 PM   #24
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Re: Changing mortar color?


Make sure you use a recognized supplier/manufacturer if you try to create a match. Very often, the minerals in cement and lime can have long term effects (usually fading, but sometimes color "shifting").

The good materials are generally iron oxides that are very permanent. Synthetic oxides are the best because of the purity and strength. Natural oxides have some other compounds that could contribute to efflorescence. Synthetics are available in reds, yellows, tans/browns and even black. They are so strong that they are not usually suited for field use because of the equipment needed to measure accurately. In the manufacture of concrete products we would have the oxides delivered by the semi load and then hand weigh it into 4 oz, 8 oz, 12 oz or 16 oz baggies to add to a 4000# batch of concrete, depending on the end color of concrete needed. We did not use iron oxides in a liquid form that used suspension agents.

If we needed greens for concrete, we use Chrome oxides (about 4 x the cost of iron oxides) that had to be protected from freezing and had to be mixed prior
Carbon black or "soot" and lamp black are just a fine material that "dirties" up the colors. During time, the bond to the cement and aggregate is destroyed and the surface of the concrete will weather is a year or so and the effects are minimized.

For small amounts stick with recognized pigment suppliers and be aware that different brands of cements are different colors and they will have an effect. This is why the small colors on a pigment brochure are only a guide. Slick joints will also appear lighter then a raked joint that has been slicked.

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Old 04-05-2017, 08:37 AM   #25
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Re: Changing mortar color?


1 usually get acceptable finished results if willing to pay the cost of quality work,,, how many yrs are you willing to look at cheap results on your own home ?

these guys know their stuff - http://www.nawkaw.com/

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