Mariseal 300

What is Mariseal 300:

Mariseal 300 is a two component, solvent free, cold applied polyurethane waterproofing liquid, it has excellent mechanical, chemical and thermal resistance and is an ideal solution for waterproofing and protection of drinking water tanks and reservoirs, swimming pools and wet rooms.

Specification Tip for Design Professionals:

Mariseal 300 may be specified by name or by using the following description:  a two component, cold applied polyurethane liquid designed for waterproofing drinking water storage tanks and reservoirs.

S 1ltr V2


  • Certified for use with drinking water
  •  Forms seamless membrane without joints
  •  Maintains its mechanical properties over a temperature span of -30⁰C to +90⁰C
  •  The cured surface can be walked on
  •  Simple application (roller or airless spray)
  •  UV resistant


For full technical information, please click here:

Mariseal 300 TDS

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