
Planning: Substrates
LITHOCHROME® Chemstain™ Classic can be used on existing substrates or new overlayments. Make sure that the substrate contains the necessary ingredients for the chemical reaction.
You can stain concrete that's been down for more than 90 years as long as it will react with the chemicals.
Integrally colored concrete can be stained, as well.
Dry-shake color hardened concrete is also an excellent base for stain because it's cement-rich.
Cementitious polymer-modified overlayments take chemical stains beautifully. Even vertical work or artificial rock installations are acceptable surfaces for chemical staining. The key is the level of hydration in the cement.