What is the best kind of soap to wash semis with,When using a presserwasher to get that black roadfilm off?

pressure washer brush image

Karl

Hot water pressure washer.So i don't have to use a brush and scrub.

Answer
maguires makes some good ones

How can you remove oil paint stains from exterior home masonry?

stev

I asked that before. People answered saying "wire brush", "paint remover" and "nail polish remover". I tried all three, none worked.
One person said sandblaster and high pressure washer but that would put grooves in the stone and was not appropriate.
WHO KNOWS HOW TO remove the paint?

Answer
Masonry is normally cleaned with a 10% muratic acid solution. Check the link for instructions.

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