Clean It Up

UK General Cleaning Forum => General Cleaning Forum => Topic started by: Ged on May 07, 2008, 06:54:08 am

Title: what strength acid
Post by: Ged on May 07, 2008, 06:54:08 am

hi all
 if you use acid, what stength  would you use to remove mortar staining and mortar snots from brick work?
ged

Title: Re: what strength acid
Post by: keith b on May 07, 2008, 07:24:25 am

Ged,

To shift Mortar & Slurry stains = 10% hydrofluoric acid to water (10 to 1 mix ) is the norm!