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Continue ShoppingBostik SL-100 UNDERLAYMENT
- $24.99
Bostik SL-100 UNDERLAYMENT
- $24.99
SELF-LEVELING UNDERLAYMENT SYSTEMS
SL-100™
Cement-Based Self-Leveling Underlayment
SL-100™ is a cement-based self-leveling underlayment engineered to create smooth, flat, and level surfaces prior to the installation of floor coverings. Its extended working time, low shrinkage, and superior leveling properties make it ideal for renovation and new construction projects where next-day flooring installations are not critical.
Self-leveling underlayment • Smooth floor preparation • Low shrinkage • Pump or barrel mix application • Fast return to service • Commercial & residential use
Product Features
Extended Working Time
Maintains healing and pour merging properties for up to 25 minutes.
Fast Return To Service
Walkable in approximately 2–3 hours after installation.
Flexible Installation Thickness
Can be installed from 1/4" to 3" neat and extended up to 5".
Pump or Barrel Mixing
Ideal for both pumping applications and traditional barrel mixing methods.
Feather Edge Capability
Can be feather-edged to meet existing elevations and transitions.
Mold & Mildew Resistant
Designed for long-term durability and moisture resistance.
Performance & Specifications
| Application Thickness | 1/4" – 3" neat / up to 5" extended |
| Working Time | Approx. 25 minutes |
| Walkable Time | Approx. 2–3 hours |
| Traffic Exposure | Can remain exposed to normal construction traffic for up to 12 months |
| Substrate Compatibility | Compatible with all adhesives approved for concrete |
| Environmental Contribution | 21% recycled content • LEED® contribution |
| Concrete Compatibility | Can be installed over green concrete |
Recommended Applications
Commercial Renovations
Smooth and level large commercial floor areas before final floor installation.
Residential Floor Preparation
Ideal for apartments, homes, condos, and renovation projects.
Wood & Resilient Flooring
Creates flat substrates for hardwood, LVT, tile, carpet, and resilient flooring systems.
Concrete Surface Correction
Helps eliminate uneven floors and surface imperfections efficiently.
📎 Product Resources
Professional Self-Leveling Performance for Demanding Projects
SL-100™ delivers smooth, flat, and durable floor preparation for residential, commercial, and renovation applications where reliability, workability, and long-term performance matter.
