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Stone Mason® Ultra Gloss Water-Based Sealer

Product Description
Installation and
Technical Literature
Application Tips
and Instructions

Stone Mason® Ultra Gloss (Water Base) seals and protects exposed aggregate, precast or bush-hammered concrete, stone and brick surfaces. A clear acrylic copolymer-based, non-yellowing sealer, it will also highlight colours and stop freeze-thaw aggregate spalling. Dries to a glossy, colourless, durable, abrasion-resistant film that resists acid, alkali, oil, grease, traffic, most industrial chemicals and de-icing salts.


  • Remains clear, will not discolour
  • Virtually unaffected by water acids, oils, and greases
  • Quick drying, with no messy mixing
  • Permits moisture escape without disrupting film
  • Abrasion, pollutant and stain-resistant
  • Helps prevent rust stains from pyrite content in aggregate

Required Tools and Materials

  • Stiff broom
  • Brush, roller or low-pressure sprayer
  • Stone Mason® Efflorescence Cleaner
  • Stone Mason® All Purpose Concrete Cleaner

SDS Sheets

Stone Mason® Ultra Gloss Water-Based SDS Sheet Download PDF      

STEP #1 –

For all surfaces, sweep first with a broom, ensuring surface is free of dust and dirt.

STEP #2 –

Remove all white powdery residue and rust stains with Stone Mason® Efflorescence and Rust Remover.

STEP #3 –

Clean surface thoroughly and remove all oil, gasoline and grease stains using Stone Mason® All Purpose Concrete Cleaner.

STEP #4 –

Rinse surface clean with fresh water and let thoroughly dry.

STEP #5 –

Apply a thin, uniform coating of sealer, using either a deep-piled roller, brush or low-pressure sprayer.

STEP #6 –

For maximum durability and resistance to spills, two coats are recommended.

STEP #7 –

Let dry 24 hours between applications.

STEP #8 –

Avoid heavy coats as this may lead to discolouration.

STEP #9 –

Minimum application temperature is 10°C (50°F).


  • Promptly clean all spills on sealed surface with Stone Mason® All Purpose Cleaner.
  • Apply in warm weather 20°C (70°F) and when no rain is forecasted for 24 hours. Apply in the early morning or late afternoon if temperatures exceed 26°C (80°F).
  • Two light applications will provide a superior seal and protection than as single, heavy application.
  • To reduce slipperiness while still wet broadcast sand lightly into first coat. Let dry 24 hours then apply second coat.


To restore the original fresh looking appearance to surfaces coated with Stone Mason® Ultra Gloss an occasional cleaning with warm water and soap or detergent is all that is required.

The consumer shall satisfy themselves of the suitability of this product for the intended purpose. Weather, applicator's skill and surface conditions are beyond manufacturer's control. We, therefore, limit our liability to replacement of defective material only, within one year of proof of purchase.