Lithofin MN Stain Stop Impregnator
Lithofin MN Stain Stop Impregnator is an ultra-high performance silicone (alkoxysilane) impregnator suitable and recommended for use on all natural and man-made stones, regardless of finish type. Lithofin MN Stain Stop is recommended for both interior and exterior applications, and provides maximum protection from water penetration and water-borne stains. Oil stain protection is also very good (the best we've seen for a silicone impregnator), outperforming some recent fluoropolymer products.
Stone Pro Porous Pro Impregnator
"Porous Pro" provides state of the art protection for all unpolished stone, masonry, and grout. It is formulated
with more impregnating solids to ensure maximum protection against
water and oil-based stains that are particularly troublesome on porous
surfaces that rapidly absorb spills of any kind. Porous Pro provides the ultimate protection for all honed, tumbled, or flamed travertine,
marble and limestone; slate, sandstone, flagstone, and masonry when a
"natural" (non-color enhanced) finish is required.