Using Lithofin MN Stain Stop ECO on Limestone

Q.  I have tested the Lithofin MN Stain Stop on my Limestone and it has changed the colour slightly – is there an alternative product that will keep the colour as close to the original stone as possible?

Lithofin Stain Stop bottle

A.  You could re-test with Lithofin MN Stain Stop ECO. Water based products will generally not change the appearance of the stone and will keep the stone close to the original finish.