Removing rust from brick/shingles

[herlihyboy]

I'm replacing an old chimney cap on my chimney. However, over the years it has leached rust down the chimney brick and streaked part of the shingle roof. Is there a solvent I can buy to remove this stuff without damaging the brick and shingles?

Someone at Big Box recommended I use TSP, but the label says nothing about removing rust from a brick surface.

TIA,

Ryan

[Cliff Hartle]

You need to use something like CLR brand cleaner which is for calcium, lime and rust stains. I don't know if it will do anything bad to your brick or mortar though. Read the package.

TSP is a good basic cleaner, but CLR attacks the rust chemically. Muratic Acid may also clean it. Its what is used to clean the excess mortar of brick after it is laid.

[Italian Mason]

I just went to get the name in my closet but the bottle is not there.. This stuff is in a brown plastic bottle with a white cap and I purchased it at walmart in the isle where the fabric dye and the detergent is. It is use for taking rust stains off of clothing. I have used it on bricks, concrete, tile ect. it WORKS. the name is something like Mrs ???? something....sorry I cannot remember the name.

herlihyboy wrote:

[herlihyboy]

Is it Wink? We have that stuff and it comes in a little brown bottle. I may give that a shot, but I was hoping for a less expensive option as it would probably take a dozen bottles of that stuff for the area I need to cover.

Thanks again,

Ryan