The future of cold-applied waterproofing

By Jesse Sanchez.

This cold-applied spray is revolutionizing waterproofing with unmatched durability, efficiency, and eco-friendly application for modern construction projects.

In commercial construction, ensuring durable waterproofing for foundations, plaza decks, and planter boxes is critical. These surfaces demand a robust membrane that withstands environmental stress and physical wear. Among the options available, SOPREMA’s cold-applied waterproofing solution COLPHENE LM BARR Spray is redefining industry standards by combining innovative technology, seamless application, and long-term reliability.

Durability meets innovation

SOPREMA’s COLPHENE LM BARR Spray is engineered using STPE (silyl-terminated polyether) technology, offering exceptional elongation properties and adhesion to concrete. Its single-component formula achieves a monolithic, elastic seal capable of withstanding extreme temperatures without cracking or softening. Unlike traditional multi-layer systems, COLPHENE LM BARR Spray forms a continuous waterproofing layer with fewer steps, ensuring uniform performance across varying substrates.

This advanced SOPREMA membrane meets critical ASTM standards for tensile strength, adhesion, and low-temperature crack bridging, ensuring resilience against structural movement and environmental fluctuations. It excels in bridging cracks even at low temperatures, maintaining its integrity under stress — a critical factor for construction projects in dynamic climates.

Efficiency redefined

Time is money on any construction site and COLPHENE LM BARR Spray delivers unmatched efficiency. Unlike hot-applied systems that require extended heating times, this cold-applied solution from SOPREMA eliminates the need for flame, reducing setup time, and safety concerns. The spray-applied version allows contractors to cover up to 7,000 square feet per day with a minimal crew, making it three and a half times faster than traditional hot-applied methods.

Moreover, SOPREMA’s innovation directly bonds to green concrete, cutting the traditional 28-day curing time in less than half, allowing waterproofing to begin within only 3 days of concrete pour. This capability significantly accelerates project timelines while reducing labor costs.

Built for the jobsite

Designed by SOPREMA’s research team to withstand the rigors of construction, COLPHENE LM BARR Spray resists punctures, abrasion, and chemical exposure. Whether subjected to dropped tools, vehicle traffic, or equipment loads, it maintains its waterproofing properties. Its moisture-curing formula ensures rapid setting, making it rain-safe within minutes and ready for backfill in 24 hours, further streamlining construction sequencing.

A safer, more sustainable solution

Unlike hot-applied systems that rely on open flames and emit noxious fumes, COLPHENE LM BARR Spray is solvent-free with ultra-low VOC content, meeting stringent environmental standards. Its application does not require hot work permits, reducing fire hazards and improving air quality on-site.

Conclusion

SOPREMA’s COLPHENE LM BARR Spray exemplifies the next generation of cold-applied waterproofing, combining advanced technology with unmatched efficiency, durability, and safety. It not only meets but exceeds the demands of modern construction, offering architects and builders a reliable, environmentally friendly solution for protecting critical infrastructure.

Contact SOPREMA today to learn more about specifications and application techniques to ensure your project benefits from this cutting-edge, time-saving innovation.