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High Performance Water-based, 100% acrylic protective anti-carbonation coating

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Sikagard 670W is a water dispersed colored, acrylic, protective coating. Sikagard 670W prevents moisture ingress, is water vapor permeable and provides an excellent carbonation barrier.


Sikagard 670W Product Data Sheet 

Where to Use 

Above grade, exterior application on buildings or civil engineering structures. It is designed to aesthetically enhance, protect and add superior light reflectance to concrete and other masonry substrates subject to normal hydrothermal movement.


  • Easy to apply, contractor friendly
  • Extremely resistant to dirt pick-up and mildew.
  • Excellent resistance to carbon dioxide and other aggressive gas diffusion.
  • Excellent UV resistance.
  • Excellent weathering resistance.
  • Prevents ingress of chlorides.
  • Cost effective protection.
  • Vapor permeable; allows each way water vapor diffusion (breathable).
  • High Reflectance Value
  • Great color retention
  • Breathable, resists peeling and blistering 

Key Data:

  • 2 Coats
  • Dry film thickness per coat: 2.5 mils
  • Coverage rate per coat:  300 sq ft/gl
  • Dry time (at 68 degrees Fahrenheit, 50% RH)
  • Between Coats: 30 Minutes
  • Rain resistant: 1 Hour
  • Final drying: 4 Hours


Theoretical per coat: 300 sq. ft./gal. Wet film thickness: 5 mils. Dry film thickness: 2.5 mils.
Normal coating system is two coats minimum at a total nominal dry film thickness of 5 mils. Consumption is obviously dependent on substrate. In addition, allowance must be made for surface profile,variations in applied film thickness, loss and waste. A third coat may be necessary where opacity is reduced through thinning of the first coat, on dense substrates or with very bright color shades.


5 gallon, re-closable plastic pails.

A high- quality, professional grade coating that enhances the appearance of almost any structure. Waterproofs and protects from environmental elements and natural weathering. Its ease of application and excellent coverage make Sikagard 670W extremely user-friendly for professional contractors. Use Sikagard 670W to “weatherproof” and protect - as well as enhance the look - of exposed structures where cracks and movement are typically not a concern.

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