Master Sealer

Adhesion promoting primer for stable tile surfaces

Master Sealer is a water-based acrylic, adhesion promoting primer and sealer designed for very porous exposed roof tiles and masonry surfaces. It has excellent weatherproofing, adhesion and durability performance. Surfaces primed with Master Sealer and top coated with a suitable Nutech system perform exceptionally under conditions of hot, cold and wet weather.


  • Excellent build and surface adhesion
  • Improves hardness and flexibility
  • Easy application
  • Fast drying
  • Weatherproofing performance

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Do not apply Master Sealer in very cold temperatures.

Do not apply Master Sealer on uncured mortar pointing.

Do not apply Master Sealer on tiles with a powdery loose oxidised surfaces.

Master Sealer
Quick Reference

Suitable Surfaces

Concrete Tiles


Opaque white viscous liquid


8.5 - 9.0



Film Forming Temperature:


Dry Film Thickness:

95 microns

Coats Required:


VOC Levels:

35 g/litre



Ambient Application Temperature:

12°C - 30°C

Coverage Rate:

4 m2/L



Water Based

In The Blog:

Choosing the right primer for a roof

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Download Master Sealer TDSDownload Master Sealer SDS
Important Notice

The information given in this data sheet is based on many years experience and is correct to the best of our knowledge. However as the use of our product is beyond our control we can only be responsible for the quality of our product at the time of dispatch. For additional information about specifications or application please contact our company. As this information is of a general nature we cannot assume responsibility for individual use.