Grinder swarf and rust stains - Anybadvice

Artist · Post: # 111299Post **Artist** Sun Sep 11, 2016 5:14 pm

i have been approached by a client who has a particular problem regarding contamination on a french limestone slabbed patio,contractors who built a steel canopy over the patio used a grinder during construction as a result swarf became embedded in the slabs and consequently rust spots have appeared, any advice and solutions appreciated

rab1 · Post: # 111306Post **rab1** Sun Sep 11, 2016 9:24 pm

rodger is your man for this

RAPressureWashing · Mon Sep 12, 2016 3:45 pm

Artist wrote:i have been approached by a client who has a particular problem regarding contamination on a french limestone slabbed patio,contractors who built a steel canopy over the patio used a grinder during construction as a result swarf became embedded in the slabs and consequently rust spots have appeared, any advice and solutions appreciated

Photos would help if you could upload some, but depending on the damage, it might not be reversible