
HS-1 SL self-leveling hybrid sealant developed with silyl-modified polymer (SMP) technology cures under the influence of atmospheric moisture. HS-1 SL's one-part formulation eliminates mixing, and its convenient 32 oz. size make it easy to handle. HS-1 SL is applied directly from its packaging and can be resealed; no tooling or caulking gun is required.
HS-1 SL can be used in movement and construction joints and is ideal for sidewalks and driveways subject to pedestrian traffic. HS-1 SL adheres to green concrete, damp surfaces and most construction materials. HS-1 SL is available in gray and tan to best match the application site.
- Allows movement capability of 25%
- Cures bubble-free
- Is permanently elastic over a wide range of temperatures
- Resists chlorinated water splashes
- Non-gassing
- VOC-compliant












![Lee Boy Facility 2025 17 Use[16]](https://p1-cms-assets.imgix.net/mindful/acbm/workspaces/default/uploads/2025/09/leeboy-facility-2025-17-use16.AbONDzEzbV.jpg?ar=16%3A9&auto=format%2Ccompress&fit=crop&h=135&q=70&w=240)






