Barrier Undercoat

A protective sealer and adhesion promoter for surfaces that have previously been coated in an unknown product. Barrier Undercoat seals off and stabilises the old coating so that Norglass Paving Paint can be applied over it. Easy to use, low odour and quick to overcoat.

Barrier Undercoat is not a finish coat, and must be overcoated with Norglass Paving Paint.

Note: although it is designed to seal over old paint systems (xylene or water based coatings), Barrier Undercoat is not intended to fix a paint system that has already failed. Where areas show large signs of failure, such as delamination, Norglass recommends having the surface professionally ground back to raw concrete and then painting as normal.