Keeping rail networks running with minimal downtime is more important than ever. With Curing‑by‑Design, Sika introduces a next‑generation adhesive technology that helps rail operators complete maintenance faster without compromising long‑term performance.
A Smarter Way to Cure
Curing-by-Design is an advanced polyurethane technology engineered specifically for rail fixing applications. Its unique feature: it combines extended open time for safe, precise installation with ultra fast curing for rapid return to service. This new level of control over the curing process brings flexibility and speed together in one system. The technology is integrated into products such as Sika® Icosit® KC 350/45, KC‑350/65, and KC‑250/80, used in high‑traffic rail networks, metro systems, tramways, and depot environments.
How It Works
Specially designed 2‑component PUR systems with snap‑cure capability allow open time and cure time to be controlled independently. Installers gain more working time—even during demanding night shifts—while the material still achieves full strength within hours.
The adhesives perform reliably in tough conditions, including damp surfaces, fluctuating temperatures, and challenging urban environments.
Key Benefits
- Fast Application, Fast Curing: FUp to six times faster curing than standard PU grouts—rails can be reopened the same night.
- Proven Long-Term Durability: Backed by more than 50 years of successful use in global rail infrastructure.
- Flexible Use Across Rail Systems: Suitable for discrete and continuous fixation in tramways, metros, bridges, tunnels, gantry cranes, and more.
- Enhanced Passenger Comfort: Excellent vibration damping and sound absorption improve ride quality.
Impact on Operations
On-site, Curing-by-Design means higher productivity and lower disruption. Projects can be completed faster, machine-application boosts efficiency, and long-lasting performance reduces maintenance intervals over time.
As rail traffic grows and infrastructure ages, the demand for high‑performance materials increases. Curing-by-Design positions Sika at the forefront of this evolution.
Curing-by-Design improves workability, simplifies on‑site processes, and delivers significantly faster curing. This leads directly to shorter track closures and a safe, swift return to service.
Whether upgrading a metro or constructing a new rail line, Curing‑by‑Design ensures rails are fixed fast, fixed right, and built to last.