YY-110 | Self-Leveling Gypsum Underlayment
YUNYAN YY-110 is a gypsum-based self-leveling underlayment for smoothing and leveling interior floors before installation of compatible floor coverings. It is intended for dry internal areas and should be applied over a properly prepared and primed substrate at the thickness approved by the final TDS.
For dependable results, specify Self-Leveling Gypsum Underlayment as part of a complete system, verify substrate compatibility, and follow the approved technical data sheet and site trial.
In specification and procurement searches, self leveling underlayment is the primary product term for this page. Buyers comparing a self leveling underlayment supplier can evaluate technical compatibility, packaging, and project support with YUNYAN. For applications requiring gypsum floor underlayment, complete a site trial and follow the approved installation method.
Key Features & Benefits
· Gypsum-based, pumpable or pourable leveling material.
· Produces a smooth, flat surface for subsequent floor finishes.
· Suitable for interior renovation and new construction.
· Good flow supports efficient installation over large areas.
· Use in dry internal areas unless the approved system states otherwise.

Recommended Applications
· Apartments, hotels, and offices.
· Interior concrete or approved screed substrates.
· Preparation below vinyl, carpet, engineered wood, or tile systems.
· Renovation of uneven internal floors.
· Large-area pumped underlayment projects.
Why Choose YUNYAN
Choose this product when the project brief calls for self leveling underlayment with clear technical documentation and consistent supply. YUNYAN supports importers, contractors, and distributors that need a responsive self leveling underlayment supplier. Where the specification requires gypsum floor underlayment, the final system should be confirmed against substrate conditions and service exposure.
Application Guide
1. Mechanically prepare the concrete to remove laitance, weak material, coatings, oil, and contamination; repair cracks and defects.
2. Verify substrate moisture, strength, flatness, and environmental conditions before application.
3. Mix components accurately and apply the specified primer, body coat, decorative media, and top coat within their working times.
4. Keep the area clean and closed to traffic until the system has reached the required cure for service.



