What is Seal Coating?
Seal Coating is a thin asphaltic treatment used to protect pavement surfaces from UV radiation and oxidation. Seal coat may contain asphaltic or coal tar emulsion, fillers, sand, polymer latex, fibres and pigments. It depends on the application.



What is it used for?
Seal coats are mostly for protecting a surface from aging. They are a thin layer and work well as void fillers. They may be used for parking lots, walkways, driveways, roofing in some circumstances.


Are there different types?
Seal Coats are very fine materials. They are applied as relatively low viscosity mixtures with water so the resulting surface is very smooth. It is not intended for fast traffic or where skid resistance is important.

Binders are selected for the type of job. Binders may be emulsified asphalt or coal tar, emulsified polymer asphalt, latex modified emulsified asphalt, rejuvenating oil modified asphalt emulsions or hot applied binders with asphalt rubber fibres or polymers. VSS will advise on the type of seal that is suitable. Different types of aggregate will give lighter or darker results.

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