Market Background

In the European construction and renovation market, waterproofing materials are subject to increasingly strict requirements related to environmental compliance, user safety, and application efficiency. Waterproof coatings used in residential, commercial, and light infrastructure projects must not only provide reliable long-term protection but also comply with regulations on VOC emissions and solvent usage. As sustainability and indoor air quality standards continue to tighten, solvent-free and low-emission waterproofing systems are becoming the preferred choice.

At the same time, contractors in Europe place strong emphasis on ease of application and productivity. Waterproofing solutions that are difficult to apply, require complex equipment, or involve strong odors are less suitable for modern construction and refurbishment projects, particularly in occupied or enclosed environments.

Customer & Application Scenario

The customer is a European waterproofing material manufacturer supplying coatings for bathrooms, rooftops, basement and other exposed or moisture-prone areas. Typical applications include refurbishment projects and new construction where fast application, uniform coverage, and consistent curing behavior are critical.

Key application requirements included:

• Smooth flow and easy leveling to ensure uniform film formation
• Simple application using rollers or brushes
• Compliance with VOC-free and solvent-free regulations
• Reliable waterproofing performance under typical European climate conditions

The customer aimed to develop a coating that would improve installation experience and efficiency while fully aligning with environmental and regulatory expectations.

Our Solution

To meet these requirements, the customer selected a low-viscosity STP-based waterproof coating formulation using Risun STP polymer technology. The STP system enabled a solvent-free and VOC-free formulation while maintaining stable application behavior and curing performance.

Key technical characteristics of the solution include:

• Polymer technology: STP (Silane-Terminated Polyether) polymer
• Viscosity profile: Low viscosity, supporting good flow and easy leveling
• VOC content: VOC-free, suitable for environmentally regulated markets
• Solvent content: Solvent-free, improving job site safety and indoor air quality
• Curing mechanism: Moisture-curing under ambient conditions
• Application method: Compatible with roller and brush application

The low-viscosity STP polymer allowed the coating to flow smoothly across substrates, reducing the risk of uneven thickness or pinholes. At the same time, the moisture-curing mechanism supported reliable curing without the need for additional solvents or complex processing steps.

Customer Feedback

After product launch, the customer reported positive feedback from applicators and distributors. Installers highlighted the ease of application and smooth surface finish, noting reduced effort during coating. The absence of solvent odor was particularly appreciated in indoor and renovation applications.

From a manufacturing perspective, the customer noted stable formulation behavior and improved production consistency. The solvent-free system simplified compliance documentation and supported broader acceptance in environmentally regulated projects.

Summary

This case demonstrates how low-viscosity, solvent-free STP waterproof coating systems can effectively meet the combined demands of performance, compliance, and application efficiency in the European market. By adopting Risun STP polymer technology, the customer successfully developed a waterproof coating solution that delivers easy application, environmental compliance, and reliable protection. Such application-oriented STP solutions provide a practical and sustainable pathway for waterproofing manufacturers serving compliance-driven markets.