BOSTIK SL-100 is a contact-grade, self-leveling underlayment engineered for professional installation applications. This grey formulation delivers superior flow and leveling characteristics, automatically conforming to subfloor irregularities without manual manipulation. Each 50 lb bag provides reliable coverage for medium-scale projects. Ideal for installers seeking consistent results and reduced labor time, this underlayment creates a stable foundation for flooring systems while accommodating minor substrate variations. Professional-grade performance in a convenient, ready-to-use format.
