NBS Source
I'm a manufacturer

MARISEAL® 250 - Liquid-applied PU Waterproofing Membrane

Verified by manufacturer 10 months ago

MARIS POLYMERS S.M.S.A Third party certifications:
  • BBA Agrément Certificate

    BBA Agrément Certificate

    Certificate type

  • European Technical Approval (ETA)

    European Technical Approval (ETA)

    Certificate type

  • EPD

    EPD

    Certificate type

  • ISO 9001 Quality Management

    Certificate type

Premium, liquid-applied, highly permanent elastic polyurethane membrane used for long-lasting waterproofing.

Jump to:
+30 22620 32918-9 Website

Application

Waterproofing membrane for use on:

  • Roofs and terraces;
  • Green roofs;
  • Old bitumen felts, asphalt felts, TPO, PP, EPDM, PVC membranes and old acrylic coatings;
  • Protection of polyurethane foam insulation.

Description

Premium, liquid-applied, highly permanent elastic polyurethane membrane used for long-lasting waterproofing.

Based on pure elastomeric hydrophobic polyurethane resins which result in excellent mechanical, chemical, thermal, UV and natural element resistance properties.


Features and benefits:

  • One-component, ground and air moisture-cured, cold-applied and cold curing, solvent-based aromatic polyurethane.
  • Compliant with ASTM C836 specification and BBA certification 17/5443; EPD verified.
  • White/ light grey in colour.
  • Simple application (roller or airless spray).
  • Seamless membrane without joints when applied.
  • Resistant to stagnating water.
  • Resistant to frost and high temperatures (maintains its mechanical properties over a temperature span of -30 to +90°C).
  • Resistant to root penetration so can be used in green roofs.
  • Crack bridging up to 3 mm even at -20°C.
  • Provides water vapour permeability.
  • Provides excellent weather and UV resistance.
  • Waterproofs old bitumen, asphalt felts by covering them, without the need to remove them prior to application.
  • Resistant to detergents, oils, seawater and domestic chemicals.
  • Even of the membrane gets mechanically damages it can be easily repaired locally within minutes.
  • Supplied in metal pails between 1 and 25 kg.

General information

Color

White

Grey

Guidance for specification option:

Light grey.

Finish

Semi-gloss

Material

Solvent-based

Polyurethane

Liquid

Polymer

Shape

Formless

Uniclass

Pr_35_31_68_64 Polyurethane (PUR) waterproof coatingsPrimary

CAWS

J31/47 Waterproof coating

J31/353 Waterproof coating

Specification data - Polyurethane (PUR) waterproof coatings

Third-party certification

Compliant with ASTM C836 specification and BBA certification 17/5443.
EPD verified.
European Technical Approval ETA-21-0248.

Colour

White.

Light grey

Coverage

1.4–2.5 kg/m², applied in two or three layers.

Guidance for specification option:

Based on application by roller onto a smooth surface in optimum conditions.

Elongation at break

To ASTM D412, 600%.

Tensile strength

To ASTM D412, >4 N/mm².

Tear strength

To ASTM D624 (type B), 40 N/mm.

Puncture resistance

To ASTM E154M (0.8 mm film), 350 N.

Crack bridging

To EN 14891, 4.4 mm (23°C); 3.7 mm (-5°C); 3.6 mm (-20°C).

Water vapour permeability

To DIN EN 1931, 12 g/m²/day.

Adhesion to concrete

To EN 1542, >1.9 N/mm² (concrete surface failure).

Shore A hardness

To ASTM D2240 (15"), >65.

Root protection

To UNE CEN/TS 14416, resistant to root penetration.

SolarReflectance

Solar reflectance, to ASTM E903-96, 0.87 (white only).

Service temperature

-30 to +90°C.

Final curing time

Seven days (at 20°C, 50% relative humidity).

Performance characteristics

Solar emittance, to ASTM E408-71, 0.89 (both for white only).
Shock temperature (20 minutes): 200°C.
Hydrolysis (5% KOH, seven day cycle): No significant elastomeric change.
Rain stability time: 3–4 hours.
Light pedestrian traffic time: 18–24 hours.
Chemical properties: Good resistance against acidic and alkali solutions (5%), detergents, seawater and oils.

Sustainability data

Country of material origin

Greece

Country of product manufacture

Greece

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

-

Manufacturer guidance

Test

Third party certifications

BIM objects

Platform Compatible Version
Revit
-

1

Third party certifications

BBA Agrément Certificate

BBA Agrément Certificate

BBA certification 17/5443

European Technical Approval (ETA)

European Technical Approval (ETA)

ETA MARISEAL 250 SYSTEM 21-0248

European Technical Approval (ETA)

European Technical Approval (ETA)

Mariseal 250 / Flash systems ETA-05-0197

EPD

ENVIRONMENTAL PRODUCT DECLARATION MARISEAL® 250

ISO 9001 Quality Management

ISO 9001 Quality Management

ISO 9001

Literature

Maris brochure

Maris brochure

TDS MARISEAL® 250

TDS MARISEAL® 250

Case studies

Flat roof waterproofing in the UK

Flat roof waterproofing in the UK