Easy Application
Moulds to the roof with glass fibre matting reinforcement
Sikalastic® PU Liquid Applied Membrane Systems
At Sika, we are dedicated to innovation and strive to not only develop new cutting-edge technologies but also enhance existing ones. The Sikalastic® PU range of coatings is a one-part, cold-applied, moisture-triggered liquid waterproofing membrane that cures to form a seamless, long-lasting and weather-resistant solution for roof areas that are exposed. These products possess the inherent advantages of liquid membranes and are also a cost-effective alternative compared to other solutions on the market.
Our Sikalastic®-625 N is Sika's most versatile liquid-applied polyurethane membrane suitable for various applications, such as flat, commercial, and industrial roofs, as well as balcony walkways. Our patented i-cure technology enabled us to improve the Sikalastic®-625 N range, which offers a number of benefits such as:
- Improved temperature stability
- Longer shelf life
- Enhanced workability
System Essentials
FAQ
What is a liquid polyurethane membrane system?
A liquid polyurethane membrane system is a cold-applied waterproofing solution that cures to form a seamless, flexible, and durable membrane. It is commonly used on flat roofs, balconies, and terraces to provide long lasting protection against water ingress, UV exposure and weathering. These systems are ideal for detailing around penetrations and complex roof shapes.
What are the typical uses of liquid polyurethane systems?
Liquid polyurethane systems are widely used for waterproofing flat roofs, commercial and industrial roofs, balconies, terraces, walkways and refurbishment projects. Their seamless application makes them especially suitable for complex roof details, upstands and penetrations.
What liquid polyurethane membrane system does Sika offer?
Sika offers Sikalastic®‑625 N, a high-performance, cold-applied liquid polyurethane membrane designed for flat roof waterproofing. It cures to form a seamless, durable and UV-resistant finish, making it ideal for both new construction and refurbishment projects. The system is reinforced with glass fibre matting and provides excellent flexibility, even around complex roof details.
What are the benefits of Sika’s liquid polyurethane membrane system?
The Sikalastic®‑625 N liquid polyurethane membrane system offers a range of advantages:
- Easy application with cold-applied, seamless installation
- Moulds to complex roof shapes using glass fibre matting reinforcement
- Versatile solution suitable for a wide range of waterproofing applications
- Exclusive i‑Cure® technology for improved curing, workability and long-term performance
- Cold-applied system that reduces on site health and safety risks
- Full service package including consultation, roof survey and bespoke design support
- Comprehensive warranties to minimise project risk and ensure peace of mind
How are Sika’s liquid polyurethane membranes applied?
Sikalastic®‑625 N liquid polyurethane membrane is cold-applied by brush, roller or airless spray.
