Call us on 01202 785200


Balconies and terraces pu | Mariseal 400

Mariseal 400

An aliphatic polyurethane top coat for domestic pedestrian traffic areas.

The Mariseal 400 is a pigmented, colour- and UV-stable, highly permanent elastic, one component aliphatic polyurethane coating, used as a top coat for protection over exposed, polyurethane waterproofing coatings. Cold applied, it cures by reaction with ground and air moisture over a unique moisture triggered chemical reaction. Protects very efficiently, especially if a dark final colour is desired.Used over the Mariseal 250 and 260 on surfaces with domestic pedestrian traffic such as roofs, terraces and residential walkways that require a glossy, colour-stable and non-chalking finish.


  • Simple application by roller or airless spray
  • Increases the abrasion and wear resistance of the waterproofing membrane underneath
  • UV and Colour stable
  • Glossy and easy-to-clean surface
  • Does not show the chalking effect of aliphatic polyurethane coatings
  • Resistant to water, heat and frost
  • Maintains its mechanical properties over a temperature span of -40C to +90C
  • The waterproofed surface can be walked on (domestic pedestrian traffic)

Call us on 01202 785200