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: The following are all factors for selecting a sealer. The sealer descriptions below will mention which attributes they have to help in your selection; 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.

Coverage, Number of Coats: Bluestone has a medium porosity; generally one coat is sufficient but if absorbed quickly, then a second coat should be given. Coverage will vary with the sealer selected and will be about 200 sq ft / gallon. If a second coat is used il generally will get greater coverage.

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.

  • TSS110-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.
  • TSS360-Wetlook Gloss to Low Sheen, water based, surface film with penetrating silicone; repels water, oil, wine, most stains, medium darkening, enhances colors, low to medium wet look, gloss to low sheen depending on the number of coats.
  • TSS500-Enhancer, water based, matte finish, penetrating; repels water, strong beading, prevents efflorescence, enhancing wet look – 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.

You may also want to consider:

  • TSS550-Stain Safe, solvent based, penetrating, repels water, oil, powerful, premium, powerful stain resistance for long periods including red wine, strong beading, slight darkening
  • TSS750-Algae Cure, water based, surface film; repels water, prevents most forms/colors of algae, up to 2-3 year effectiveness