Coffee Acid Stain (Spectrum)

W.R. Meadows SPECTRUM 930 Patina Acid Stain is a ready to use, penetrating product that reacts with concrete to produce a unique and permanent coloured surface. Unlike other colourants, SPECTRUM 930 Patina Acid Stain penetrates the concrete surface to produce the aged appearance of timeworn patina. The colour will last as long as the concrete surface remains intact. SPECTRUM 930 Patina Acid Stain is available in a variety of colours and creates an antique coloured finish when applied to concrete.

Product Information & Usage

SPECTRUM Patina Acid Stain is a ready-to-use chemical stain consisting of naturally occurring metallic compounds dissolved in acid. Patina Acid Stain penetrates the surface of new or old, as well as interior and exterior concrete surfaces, to produce an aged appearance of a timeworn surface. Patina Acid Stain colours are unique to each and every concrete surface because they produce a chemical reaction within the surface layer when it reacts with the calcium (free lime) in the concrete. The final colour will be dependant on the chemical composition, mix design, porosity, age, texture and colour of the concrete surface it’s being applied to. Patina Acid Stain is hard-wearing for all sorts of commercial applications, ranging from retail outlets, showrooms and restaurants to office foyers.

Due to color variations of various types of printers, acid stain colors presented on this website offer only an approximation of the actual color. You should use this acid stain color chart for a primary color selection only.

Applications

SPECTRUM 930 Patina Acid Stain can be used on both old and new, as well as interior and exterior concrete surfaces, to achieve an antiqued, permanent colouration of the concrete. Common areas of application include: patios, pool decks, driveways/walkways, plazas, etc. SPECTRUM 930 Patina Acid Stain cannot be used to hide surface imperfections or to cover construction errors. The final colour obtained is unique to each concrete surface and is dependent on the chemical composition, mix design, porosity, age, texture and colour of the original concrete substrate.

Features and Benefits

  • Permanently stains concrete surfaces. Will not disrupt the appearance of the natural concrete substrate.
  • Can be used on all types of concrete surfaces.
  • Easy application and clean up.
  • Colours may be blended on-site for custom projects.
  • Provides the artist or contractor with a myriad of decorative options.

Intensity of Stain is Affected by:

  • Concentration of the acid. Higher = more intense
  • Length of time the acid is left in contact with the surface. Length = intensity
  • Age of the concrete (stain on newer concrete is generally more intense than on older concrete)
  • Cement content (stain on higher cement content is generally more intense than on lower cement content substrates)

Tips for Acid Staining

Wear safety glasses and rubber gloves to protect eyes and skin from splashing. Acid stains will burn skin and clothing! You are working with an acid, which may cause damage to adjacent vegetation, if not protected. Avoid inhaling fumes.

  • Surfaces to be stained should be 100% clean – free of waxes, curing compounds, sealers, oil and grease. If clean, the acid stain should fizz when applied.
  • Stains can be used at full concentration out of the bottle or diluted up to 12 times.
  • Apply with plastic or foam tools – never use steel applicators.
  • Applying pressure during application produces more intense staining.
  • Pre-wetting surface reduces the likelihood of tool marks, but decreases intensity of stain (dilution factor).
  • Avoid applying stain in straight lines – use random or circular motions.
  • Colours can be mixed either on the surface or in containers for highlights or an increasing colour range.
  • Re-apply stain to darken or intensify colour, but intensely stained areas cannot be lightened.
  • Wet the stained surface with water to “preview” finished look before sealing.
  • Neutralizing is achieved by flushing the area with water until water runs clear, pH is neutral and no more colour comes off on your finger when the surface is wiped. Neutralizing can be accelerated by using a solution of 1 cup ammonia in 3 gallons of water followed by a water rinse to a neutral pH and no colour comes of on your finger when the surface is wiped.
  • Sealer should be applied to a small test area prior to application of the entire surface to ensure bond of sealer to substrate. Note: Water-based sealers are typically more sensitive to pH, so more attention to neutralizing is required when applying a water-based product.

See Technical Information for More Details

 

Coffee Acid Stain is Available in

  • 4 L (SKU# 04-6024)
Focus Design Group