HYPERCOAT PU W

HYPERCOAT PU W – High-Performing Water-Based Polyurethane, Elastomeric Waterproofing Coating

Description:

HYPERCOAT PU W is a water-based aliphatic polyurethane elastomeric coating designed for waterproofing and protection. This product can be easily applied on both vertical and horizontal surfaces, forming a seamless, elastic, and hydrophobic membrane with high resistance to UV and mechanical stress. Application methods include the use of a brush, roller, or airless spraying in two or more coats, depending on the final use requirements.

Recommended For:

• Waterproofing and protection of concrete roofs, metal roofs, fibrous cement, gypsum and cement boards, cement slurries, and tile floors.
• External walls, lift pits.
• Bathrooms, kitchens, balconies, laundry, wet areas (under tiles).
• Polyurethane foam insulation.
• New or old acrylic or polyurethane waterproofing coats.

Limitations:

• Not recommended for unsound substrates and areas immersed in water for varying time periods.
• Avoid application under conditions of extreme wet weather, imminent rain, or near-freezing temperatures.
• When covering cracks larger than 1.5 mm, HYPERCOAT® PU W may be reinforced with non-woven polyester tissue, requiring at least three coats.
• Avoid excessive coating thickness to prevent long drying times.

Advantages:

• Easy to apply and repair by spray, brush, roller, or trowel.
• High elasticity, tensile strength, elongation at break, and excellent adhesion.
• Forms a seamless waterproofing membrane system.
• Excellent weather and UV resistance.
• Good chemical resistance.
• Allows water vapor transmission, preventing blistering or peeling.
• Suitable for waterproofing walkable roofs.
• No appearance of holes in the surface during material curing.
• Protection of polyurethane foam insulation.
• Eco-friendly (water-based).

Application Prerequisites: Successfully applied on concrete, fibrous cement, cement roof tiles, wood, galvanized steel, and PU foam. Standard concrete substrate conditions include specific requirements for tensile strength, surface humidity, temperature, and relative atmospheric humidity.

Application Procedure:

Surface Preparation:

• Remove loose and deteriorated materials using a high-pressure washer or mechanical wire brushing.
• Eliminate efflorescence, mold, mildew, dust, dirt, laitance, and standing water before coating application.
• Fill traces of chiseling or holes with mortar mixed with HYPERLATEX bonding agent.

Priming:

• Use HYPERPRIMER US as a suitable primer and apply according to its technical datasheet.

Apply HYPERCOAT® PU W:

• Mix HYPERCOAT® PU W thoroughly before application.
• Apply at least 2 coats on the substrate surface using a brush, roller, or airless spraying machine.
• Ensure coverage on corners, joints, and construction joints before covering the entire surface.
• The time between two coats is 6-24 hours.

Consumption:

• Horizontal surfaces: 0.4 ÷ 0.6 kg/m2 / 2 coats
• Vertical surfaces: 1.2 ÷ 1.5 kg/m2 / 2 coats

Cleaning: Clean all tools and equipment promptly with clean water.

Packaging: Available in plastic pails of 5 kg and 20 kg.

Shelf Life: The shelf life of HYPERCOAT® PU W is 24 months minimum in its original unopened pail in a cool and dry place. Once opened, the shelf life will be shorter, so it should be used as soon as possible.

Health & Safety Information:

• Dispose of according to local regulations.
• Non-hazardous during transportation.
• Not harmful by skin contact.

In Liquid Form (Before Application):

PROPERTY	UNITS	TESTING METHOD	SPECIFICATION
Product Form	–	–	Viscous Liquid
Colour	–	–	Grey, Green, White
Density	g/ml	ASTM D1475	1.39 ± 0.05

In Cured Form (After Application):

PROPERTY	UNITS	TESTING METHOD	SPECIFICATION
Drying to Touch on Concrete	Hour	@ 25oC, 50RH	1 ÷ 3
Light Pedestrian Traffic	Hour	@ 25oC, 50RH	> 24
Total Hardening Time	Day	@ 25oC, 50RH	> 5
Service Temperature	oC	–	-15 ÷ 85
Hardness Shore A	–	ASTM D2240	70 ± 15
Tensile Strength	MPa	ASTM D412 – 06a	≥ 2.0
Elongation at Break	%	ASTM D412 – 06a	≥ 500
Adhesion to Concrete	MPa	ASTM D4541	≥ 1.0
Adhesion to HYPERPRIMER US	MPa	ASTM D4541	≥ 4.0
Chemical Resistance	–	–	Good

Note: This information is based on the provided product data sheet and is subject to any updates or changes from the manufacturer.