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S327
Silicone road sealant
S327 is a one-component, non-sag silicone sealant specially designed for long-lasting weatherproof sealing of expansion joints in airport runways, highways, tunnels, bridges, and other concrete pavements. It features low modulus and good elastic recovery. Accelerated artificial weathering tests show that its excellent weather resistance is fully capable of withstanding the harsh high and low temperature and strong ultraviolet environment of concrete pavements.
Advantage
Excellent weather resistance - UV/ozone resistant, withstands extreme climates
High movement capability - Accommodates concrete joint expansion/contraction without failure
Low modulus - Minimizes stress on concrete substrates to prevent surface damage
Superior elastic recovery - Fast response, quick rebound, minimal permanent deformation
Typical Performance
| Color:Black/white/gray are the three regular colors, special colors can be customized. | |||
| Project | Index | Test Standard | |
| Test paste at 23°C, 50%RH | |||
| Extrusion rate ml/min | ≥80 | GB/T13477.3 | |
| Surface drying time /h | ≤1 | GB/T13477.5 | |
| Test after curing for 28 days at 23°C, 50%RH | |||
| Tensile strength at 23℃/MPa | ≥0.80 | GB/T13477.8 | |
| Tensile strength after UV aging 720h/MPa | ≥0.6 | GB/T13477.8 | |
| Elastic recovery rate (150% elongation) | ≥85% | GB/T13477.17 | |
| 100% Tensile Modulus at 23℃ | ≤0.3 | GB/T13477.8 | |
| Tensile strength after water-UV irradiation/MPa | ≥0.45 | GB/T13477.8 | |
| Constant elongation bonding (150% constant elongation) | No damage | GB/T13477.10-15 | |
| Elongation at break at 23°C/% | ≥800 | GB/T13477.8 | |
| Heat aging | Weight loss/% | ≤5 | ------ |
| Cracking | None | ------ | |
| Powder | None | ------ | |
| Bonding failure area with concrete | ≤20% | GB/T13477.8 | |
Main applications
S327 has a low modulus and excellent weather resistance, providing strong adhesion to concrete. It can accommodate vibrations caused by traffic and vehicle movement, making it suitable for sealing various concrete expansion joints.
Typical Applications
Runway & highway joint sealing
Concrete pavement crack filling
Infrastructure sealing (subways, tunnels, bridges)
Qualification
TEL/whatsapp：+8618863956798
FAX：+86-532-86622521
E-mail：ru.zhang@cimc.com
ADD：Haier Industry park Jiaozhou,Qingdao,Shangdong,P.R.China
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