Cleaning and Stain Removal - red lines on concrete
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calrey
08-05-08, 01:20 PM
I poured some concrete then I snapped some lines with a red
chalk snap line then cut some crack control lines . When I was done it looked great but some areas where the chalk line did not get cut out remains and I cannot remove the red stains from the chalk . I pressure washed , used simple green , used acetone , pressure washed some more but no luck . Any suggestions .
chalk snap line then cut some crack control lines . When I was done it looked great but some areas where the chalk line did not get cut out remains and I cannot remove the red stains from the chalk . I pressure washed , used simple green , used acetone , pressure washed some more but no luck . Any suggestions .
Docduck
08-05-08, 11:02 PM
try a rust remover...iron oxide is in the red...gives it the color