cleaned & re-sealed (with added colour tint) a p-i-c drive last may, customer rings me wednesday can i go round and have a look at it, so i went round this afternoon, he had had some work done on his house, the builder's typicaly had left a mess cement stain's etc!
they also left a huge tyre skid mark on the surface, the custy in his wisdom tried to clean it off using of all things varnish & paint stripper it has left the affected area white as it stripped the sealant off & bedded itself into the concrete, i am going to try a 50/50 mix of sodium hypo on the stain tomorrow but he say's he wants to have the whole drive cleaned and se-sealed again, don't mind that but i need to remove all of the exiting sealant, will the sealant come off easily after a year, or do i need to spray it with sodium hypo or something before washing.?
cheers,
jim.