Removing rust stains from tarmac

[WabbitPoo]

Had a skip delivered, but they came early and left it on the nice black tarmac. Now (as well as a nasty gouge) there are orange rust stains on the client's drive.

Removed the worst with the pressure washer but still left with a clear stain. Have just found a link which recommends pure lemon juice and an old toothbrush, so will try it tomorrow, but any other notions?

 

[JohnD]

I'm sure it will wear away given time. Tarmac is not absorbent or porous like concrete.

If you feel like it, you can buy Jenolite liquid rust remover (it is a clear acid) which removes brown rust stains.

you can get it is some motorists toyshops.

Don't use a paste rust remover which is intended to leave a protective coating.

Use rubber gloves, safety specs etc and have a bucket of cold water handy to wash off any splashes