Polyurethane Waterproof Coating

Polyurethane waterproof coating is a high-performance liquid membrane made by the chemical reaction of polyether polyols and isocyanates. Once applied to a substrate, it cures to form a seamless, elastic, and highly adhesive waterproof barrier.

Polyurethane waterproofing systems made from Hug Chem bio-based polyol come in following main formats:

Two-component (2K): Requires mixing before application, offering superior strength and faster curing times.

Its flexibility, strong bonding capability, and excellent weather resistance make polyurethane coatings ideal for irregular or complex surfaces such as roofs, basements, and external facades.

Polyurethane waterproofing is used across a broad range of construction and infrastructure sectors, thanks to its flexibility and long-term durability.

Common application areas include:

Flat and pitched rooftops: UV-resistant PU membranes provide robust protection against sun, rain, and temperature fluctuations.

Basements and foundation walls: Prevents groundwater infiltration and dampness.

Exterior facades: Shields building envelopes from driving rain and environmental wear.

Bathrooms and kitchens: Seamless waterproof membranes under tiles for wet rooms.

Bridges and tunnels: Durable PU systems withstand hydrostatic pressure and movement stresses.

Parking decks and industrial floors: Offers wear resistance and chemical protection for heavy-use surfaces.

Water features and planter boxes: Safe, non-toxic waterproofing for decorative water structures.

Features:

High elasticity and flexibility: Bridges cracks and adapts to surface movement

Seamless application: No seams or joints, minimizing water intrusion points

UV and weather resistance: Durable under harsh outdoor conditions

Chemical resistance: Suitable for industrial and chemically aggressive environments

Ease of application: Applied by brush, roller, or spray even on complex geometries

Eco-friendly options: Available in low-VOC, sustainable formulas