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MARISEAL® 250 - Liquid-applied PU Waterproofing Membrane

Name: MARISEAL® 250 - Liquid-applied PU Waterproofing Membrane
Brand: MARIS POLYMERS S.M.S.A
SKU: enotPQP6H51EAQB2QdBsV9

Verified by manufacturer 11 months ago

MARIS POLYMERS S.M.S.A

Third party certifications:

BBA Agrément Certificate
Certificate type
European Technical Approval (ETA)
Certificate type
EPD
Certificate type
ISO 9001 Quality Management
Certificate type

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

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+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