Bluestone

TSSPRO SEALANT PRODUCTS FOR BLUESTONE

BLUESTONE: Bluestone is a colloquial or convenience label to rocks with blue-gray shades of colors rather than a geological term or formation. In the USA, sandstone from Pennsylvania and New York, and Limestone from the Shenandoah Valley are Bluestones.  Bluestone is a sandstone and often used as flagstone and has medium porosity.

Considerations for choosing a sealer: color enhancing/color change, adding a wet look, minimizing cooking area stains, salt-water erosion resistance, efflorescence resistance, preventing oil (cooking/motor) stains, preventing discoloring mold/algae, preventing deterioration/flaking, adding slip resistance, VOC compliance, general stain resistance, general protection.

All of the sealers listed below can be used.  Bluestone, unlike many stone varieties, tends to darken, sometimes significantly, when a sealer is put on even if the sealer is described as slight darkening. We recommend requesting a sample(s) and try it for color change before buying.

• TSS100WB-Natural Stone Seal, water based, penetrating; repels water, prevents efflorescence, strong beading, may slightly darken, good general protection
• TSS150-New-StoneSeal Pro, water based, both surface film and penetrating sealer, can be applied to high moisture content substrates, repels water, resists many stains, protects and weatherproofs, ideal for high traffic flow areas.
• TSS300-Wetlook Low Sheen, solvent based, surface film with penetrating silicone; repels water, oil, wine, most stains, darkens, enhances colors, gives wet look, low sheen. Can add slip grip to reduce slippage.
• TSS500-Enhancer, water based, penetrating; repels water, strong beading, prevents efflorescence, enhancing wet look, matte finish – slight to medium darkening
• TSS600-Stabilizer, water based, penetrating; repels water, strong beading, strengthens, prevents efflorescence, slight darkening
• TSS650-Densifier, solvent based, penetrating, repels water, consolidates and densifies, resists efflorescence, strong beading, slight darkening
• TSS950-Stain Safe, water based, penetrating; good stain resistance, repels water and oil, many nature stains (leaves etc.) caused by oils, repels red wine stains and similar stains when cleaned soon after spill, strong beading, slight darkening

You may also want to consider:

• TSS550-Stain Safe, solvent based, penetrating, repels water, oil, powerful, premium stain resistance for long periods including red wine, strong beading, slight darkening
• TSS700-ClearSurface, solvent based, penetrating; repels water, prevents black algae (the most common), up to seven-year effectiveness, slight darkening

TSS750-Algae Cure, water based, surface film; repels water, prevents most forms/colors of algae, up to 2-3 year effectiveness