FS500
Frame and Façade Silicone
FS500 is one-part, neutral curing, low modulus, low odour silicone sealant suitable for perimeter joint sealing applications with high movement capability. It has excellent adhesion to most porous substrates.
Usage/Purpose

FS500 is ideal for use in: expansion & curtain wall joints, perimeter joints around windows or doors, panel joints between most common substrates, heel and toe beads, polycarbonate glazing and other general joint sealing applications.


- Meets the requirements of EN ISO 11600 G&F 25LM
- High movement capability
- Long-term resistance to weathering, ageing and extra UV protection
- Low modulus formulation ensures minimum stress at joint faces
- Neutral cure: low odour and non-corrosive
- Modern colour range in low sheen finish
- Easy to tool into place and smooth off
Usage Guidelines
FS500 is ideal for use in: expansion & curtain wall joints, perimeter joints around windows or doors, panel joints between most common substrates, heel and toe beads, polycarbonate glazing and other general joint sealing applications.
Technical data
Characteristic | Standard | Classification |
Composition | neutral silicone | |
Classification | EN 15651 | EN 15651-1 class 25 LM CC EN 15651-2 class 25 LM CC |
ISO 11600 | DIN EN ISO 11600-F-25LM DIN EN ISO 11600-G-25LM | |
BS EN 13501-1, section 11.3 | Class E | |
Specific Gravity | BS EN ISO 1183-1 B | ~ 1.40 |
Consistency | BS EN ISO 7390 (20 mm) | 0 mm, non-sagging |
Shore A Hardness | BS EN ISO 868 | ~ 24 |
Skin Forming Time | at 23°C, 50% RH | ~ 20 - 35 minutes |
Cure Rate | at 23°C, 50% RH | ~ 1 - 2 mm /1st day |
Volume Shrinkage | BS EN ISO 10563 | ~ 6% |
Tensile Strength | BS EN ISO 8339 23°C DIN 53504 S2 | ~ 0.5 N/mm² ~ 1.6 N/mm² |
Modulus at 100% Elongation | BS EN ISO 8339 23°C | ~ 0.38 N/mm² |
Elongation at Break | BS EN ISO 8339 23°C | ~ 275% |
Movement Capability | BS EN ISO 11600 | 25% |
Elastic Recovery | BS EN ISO 7389 | ~ 95% |
Application Temperature | +5°C to +40°C | |
Service Temperature Range (Short Term) | -40°C to +150°C | |
Storage | Store in shaded dry conditions between +5°C and +25°C | |
Shelf Life | 12 months when stored as recommended in original unopened containers |