Thank you. What causes it?
I am going to go to the website but was curious now. Thanks again.
This is common with Indiana limestone and will disappear with weather over time. Go to the Indiana limestone website and you should be able to read all about it..its what they call Quarry SapOn Thu, Apr 2, 2015 at 3:32 PM, Ron Moore <email@example.com> wrote:
I was just asked to address staining on Indiana Buff limestone. These are exterior panels and have been up for 3 weeks. However, before instalation they sat outside in crates for a month. The stain looks like moisture to me however I'm not sure if the packing materials could have transferred into the stone some? I was thinking about testing a panel with a poultice tomorrow. I also think that finally having warmer spring like temperatures may dry these panels out. The panels are honed.......possibly around 400 grit finish. Pretty smooth. I will also mention that the installer tried power washing and failed. Thanks for your input.
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