Description
Bostik SL-Gyp is a premium, hybrid gypsum/cement-based, self-leveling underlayment that can be installed from 1/4″ up to 2″ thickness without extension. Designed for use over distressed gypsum subfloors, lightweight concrete, mud beds, structurally sound wood, and adhesive residue.
SL-Gyp is ideal for use on radiant or in-floor heating systems and suited for low-prep applications where shot-blasting and mechanical cleaning of substrates cannot be performed.
Key Features
- Install from 1/4″ to 2″ neat (no extension needed)
- Walkable in 3–4 hours
- Install floor covering in 2 days
- Exceptional compressive strength: 5,000 psi
- Compatible with radiant/in-floor heating systems
- 50 lb bag
