Sikaflex®-11 FC+
Sikaflex®-11 FC+ is a one-component, moisture-cured polyurethane adhesive and joint sealant, crafted for both internal and external use. It delivers strong, elastic bonds and seals for a variety of building materials and substrates.
Key Features
Movement capability of ±35 %, allowing for joint expansion and contraction.
Bonds well without substrate pre-treatment, saving time during application.
Offers excellent mechanical and weathering resistance for long-term performance.
Exhibits very low VOC emissions, earning certifications like EC1 PLUS, LEED v4, A+ (French regulation), and others.
Meets CE marking standards under EN 15651-1 & EN 15651-4, and ASTM C920 Class 35.
Technical Specifications | |
| Property | Specification |
| Base Chemistry | i-Cure™ polyurethane, moisture-cured |
| Density | ~1.35 kg/L |
| Shore A Hardness (28 days) | ~37–40 |
| Tensile Strength | ~1.5 N/mm² (≈ 1.5 MPa) |
| Elongation at Break | ~700% |
| Elastic Recovery | > 80% (after 28 days) |
| Tear Resistance | ~8 N/mm |
| Chemical Resistance | Good (resistant to water, sea water, diluted alkalis, cement grout); not resistant to alcohols, concentrated acids/alkalis, chlorinated fuels |
| Service Temperature Range | –40 °C to +80 °C (continuous operation) |
| Packaging & Colors | 300 ml cartridge (common), 600 ml foil packs. Available in multiple colors per local availability. |
| Shelf Life | Up to 15 months if stored between +5 °C and +25 °C in sealed packaging |
Applications
As a Sealant
Ideal for vertical and horizontal joints—such as façade elements, walkways, and perimeter sealing.
Also suitable for soundproofing, pipe joints, and ventilation construction.
As an Adhesive
Bonds components like window sills, thresholds, skirting boards, and prefabricated elements—indoor and outdoor.
Safety & Handling
Low-emission formulation—suitable for green-building and indoor environments.
Contains isocyanate groups; avoid direct skin or eye contact and inhalation during application. Work in well-ventilated spaces.
Disposal: Clean up uncured material carefully and dispose according to local regulations (avoid environmental release). For detailed procedures, refer to the SDS.
