Posted: Mon Oct 07, 2019 9:10 pm
Hi,
After having researched extensively on this forum, went for the reliable Kandla Grey sandstone paving for my patio which was completed beginning of September 2019 by a professional paver. The jointing compound left oil stains as it was not watered adequately during the process. When I complained they tried to clean with some detergent type stuff (I believe they have not used acid). This did not do anything whatsoever to the stains but after speaking with the company (Azpects Easy Joint) decided to leave well alone, as they said the stains would disappear. But now within a month almost half of the sandstones have become covered with the most horrible patchy brown stain, almost like someone has spilt tea. When I contacted London stone and sent them the pictures ( I cannot insert pictures in this post because it is asking for URL!) they said this was the worst case of iron oxide staining they had seen in sometime and could have been exacerbated by use of chlorine based agents during cleaning. My question is should I accept this and if not what do I say to the contractor who did the job, what can be done to remove these stains? Any advice would be appreciated. I am sorry I cannot post any pictures as I am not on any social media, but am happy to email them if anyone wants to have a look. Many thanks
After having researched extensively on this forum, went for the reliable Kandla Grey sandstone paving for my patio which was completed beginning of September 2019 by a professional paver. The jointing compound left oil stains as it was not watered adequately during the process. When I complained they tried to clean with some detergent type stuff (I believe they have not used acid). This did not do anything whatsoever to the stains but after speaking with the company (Azpects Easy Joint) decided to leave well alone, as they said the stains would disappear. But now within a month almost half of the sandstones have become covered with the most horrible patchy brown stain, almost like someone has spilt tea. When I contacted London stone and sent them the pictures ( I cannot insert pictures in this post because it is asking for URL!) they said this was the worst case of iron oxide staining they had seen in sometime and could have been exacerbated by use of chlorine based agents during cleaning. My question is should I accept this and if not what do I say to the contractor who did the job, what can be done to remove these stains? Any advice would be appreciated. I am sorry I cannot post any pictures as I am not on any social media, but am happy to email them if anyone wants to have a look. Many thanks