How do you brighten concrete?

Old 07-25-21, 03:10 AM
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How do you brighten concrete?

I recently had the front of my new garage bricked with a keystone above the door to match the house. Odd thing is the new keystone is notably darker than the keystones on my 30 year old home.

Is there a safe way to brighten the keystone?
Old 07-25-21, 03:46 AM
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I would try bleach. Use a cotton swab to dab a small area of the stone to see if you like the affect before doing the whole thing.

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