If it’s a swimming pool deck that is constantly wet, a terrace that’s in the sun and rain, or a potable water tank that needs to be waterproofed hygienically, then the choice of a waterproofing system is very important.
Modern polyurethane waterproofing systems have emerged as one of the most reliable solutions for protecting concrete and metal structures. With excellent elasticity, seamless application, UV resistance, and long-term durability, PU coating systems provide superior protection compared to many conventional waterproofing materials.
At Multichem Group, two innovative polyurethane solutions such as Multithane Expo and HydroThane™ Tankgard™ FG are designed for long-lasting waterproofing in all kinds of applications including swimming deck waterproofing, terrace waterproofing, podium decks, balconies, roofs and potable water tank waterproofing.
Traditional waterproofing systems often suffer from cracking, joint failures, UV degradation, or poor adhesion over time. Polyurethane waterproofing membranes overcome these challenges.
These qualities make them suitable for structures that are dynamic, have temperature variations, are subject to water damage, and foot traffic.
Multithane Expo is a two-component, liquid aliphatic polyurethane coating designed to offer outstanding waterproofing and UV resistance.
Multithane Expo will not chalk, discolour or degrade when exposed to sunlight, and is formulated to meet the demands of long-lasting weather protection in exposed areas.
High-Build Polyurethane Waterproofing Membrane
The coating has been formulated as a very high solids system to allow for the formation of a thick, tough, impervious waterproof coat that provides a superior degree of waterproofing.
UV-Resistant Technology
The aliphatic polyurethane chemistry provides excellent resistance to ultraviolet radiation, making it ideal for exposed terraces, podiums, balconies, and deck surfaces.
Fast Curing Performance
Its fast-curing properties help reduce project downtime and accelerate completion schedules.
Reinforced Protection
The inclusion of specialized leafing pigments contributes additional reinforcing properties to improve overall durability.
Easy Application
Multithane Expo can be applied through:
Swimming pool decks face unique challenges:
Ideal Applications
Terraces are constantly exposed to:
HydroThane Tankgard FG is a solvent-free, two-component elastomeric polyurethane waterproofing membrane specifically designed for applications involving potable water and aqueous environments.
The system cures to form a continuous, seamless, rubbery, and elastic membrane that delivers long-term waterproofing performance.
One of the most important requirements for potable water tank waterproofing is safety.
HydroThane Tankgard FG complies with USFDA 175.300 standards, making it suitable for contact with potable water and water storage environments.
This makes it an ideal choice for projects where water quality and safety are critical considerations.
A major advantage of HydroThane Tankgard FG is its ability to bond to a wide range of construction materials.
When used with appropriate primers and proper surface preparation, the membrane forms a strong and durable bond.
Water tanks are constantly exposed to:
Traditional waterproofing systems may degrade over time, leading to leakage and contamination concerns.
Applications areas:
| Feature | Polyurethane Waterproofing | Conventional Waterproofing |
|---|---|---|
| Seamless Application | Yes | Often No |
| UV Resistance | Excellent | Moderate |
| Flexibility | Excellent | Limited |
| Crack Bridging | Excellent | Moderate |
| Adhesion to Concrete | Excellent | Moderate |
| Foot Traffic Resistance | High | Variable |
| Long-Term Performance | Excellent | Moderate |
| Maintenance Requirement | Low | Higher |
When it comes to protecting structures from water damage, investing in a high-performance polyurethane waterproofing system can significantly extend service life while reducing maintenance costs.
For exposed applications such as swimming deck waterproofing, terrace waterproofing, balconies, roofs, and podium decks, Multithane® Expo delivers outstanding UV resistance, durability, and long-term protection.
For critical water-retaining structures requiring food-grade compliance, HydroThane™ Tankgard™ FG provides a seamless, solvent-free, and highly durable solution for potable water tank waterproofing and other demanding waterproofing applications.
By selecting the right PU coating system for the application, building owners and specifiers can achieve reliable waterproofing performance that lasts for years.
Polyurethane waterproofing is a liquid-applied membrane that cures to form a seamless, flexible, and highly durable waterproof barrier. It offers superior crack-bridging, adhesion, UV resistance, and long-term performance compared to many conventional waterproofing systems.
Yes. Polyurethane coatings such as Multithane Expo are excellent for swimming deck waterproofing because they provide seamless protection, UV resistance, flexibility, and durability against constant water exposure and foot traffic.
Absolutely. Polyurethane waterproofing is widely used for terrace waterproofing due to its ability to withstand rain, ponding water, UV exposure, and temperature fluctuations while maintaining flexibility and adhesion.
Yes. HydroThane Tankgard FG complies with USFDA 175.300 requirements and is designed for potable water contact applications, making it suitable for drinking water storage tanks and reservoirs.
The lifespan depends on application quality, exposure conditions, and maintenance. High-quality polyurethane waterproofing systems can provide long-term protection for many years when installed correctly on properly prepared substrates.
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Polyurethane Waterproofing for Swimming Decks, Terraces & Potable Water Tanks: A Long-Lasting Protection System If it’s a swimming pool deck that is constantly wet, a terrace that’s in the sun and rain, or a potable water tank that needs to be waterproofed hygienically, then the choice of a waterproofing system
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