You have probably scratched the surface of the brick bringing out the terra
cotta colour of the base clay. Don't start applying linseed oil without
testing a small area, like the wire brushing, it is a one way trip. If you
don't like it there is no going back. Also you should have tried the wire
brushing on a hidden area before you did the whole fireplace. If you were
trying to get rid of dirt on the surface a nylon brush probably would have
been better. Always test before you barge ahead.

"frank1492" wrote in message
...
I just went over my old brick fireplace with a wire brush and find
that the brick has now become a dull orangy red. What's the best
way to bring back the color? One website says 50% linseed oil
and 50% mineral spirits.
Help much appreciated!
Frank