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Parking decks bridges pu | Mariseal 420

Mariseal 420

A hard-elastic, aliphatic polyurethane top-coat. Applied over the Mariseal Systems waterproofing membrane, the Mariseal 420 top-coat provides a wear resistant finish that can withstand heavy pedestrian and light vehicle traffic conditions. The use of the top-coat results in an abrasion resistant, glossy and easy-to-clean surface which is colour stable, UV-stable and free of chalking. This additionally prolongs the life span of the waterproofing membrane offering long-term protection, even under the most difficult conditions.


  • Simple application by roller or airless spray
  • One component
  • Resistant to constant, heavy abrasion and wear conditions
  • UV and colour stable
  • Glossy and easy-to-clean surface
  • Does not show the chalking effect of aromatic polyurethane waterproofing coatings
  • Resistant to water, heat and frost
  • Maintains its mechanical properties over a temperature span of -40°C to +90°C
  • Pedestrian trafficable

Call us on 01202 785200