Calcareous stones (marble, limestone, travertine, bluestone, terrazzo) are composed primarily of calcium carbonate. They react with acid - even a drop of lemon juice causes visible etching. They are generally softer and more porous. Siliceous stones (granite, slate, basalt, sandstone) are composed primarily of silica (quartz). They are acid-resistant, generally harder, and more chemically durable. This distinction is the single most important factor in choosing the right care products.

Recommended: Lithofin MN Basic Protection, Lithofin MN Stain-Stop, Lithofin MN Colour Intensifier, Lithofin TC Impregnator

No! Despite its hard, dark appearance, Belgian bluestone (Petit Granit) is actually a calcareous limestone, not granite. It is acid-sensitive - vinegar, lemon juice, and acid-based cleaners will etch and damage it. Care for bluestone like marble: use only pH-neutral cleaners (MN Wash & Clean), seal with MN Stain-Stop, and always dilute acid products heavily if they must be used. The name 'Petit Granit' is misleading - it is NOT granite.

Recommended: Lithofin MN Wash & Clean, Lithofin MN Stain-Stop

For ceramic/porcelain tiles: use Lithofin KF Cement Residue Remover, undiluted or diluted 1:3 for light haze. Apply, leave 5 minutes, scrub, rinse thoroughly. For acid-resistant natural stone (granite, slate): use Lithofin MN Builders' Clean diluted 1:3. For acid-sensitive stone (marble, limestone, bluestone): use MN Builders' Clean diluted 1:5 to 1:10, pre-wet the surface first, and work quickly. Always rinse very thoroughly after treatment.

Recommended: Lithofin KF Cement Residue Remover, Lithofin MN Builders' Clean

For Belgian blue bluestone, use Lithofin WAX to enhance its natural beauty and provide a protective layer. Regularly clean with a mild detergent and avoid acidic cleaners that can etch the stone. Reseal every few years to keep it looking its best.

Recommended: Lithofin WAX