FIRM-FILL® 3310 | Floor Underlayment

An innovative product that elevates gypsum concretes to an unprecedented level of unyielding performance. FIRM-FILL® 3310 floor underlayment's fast-setting surface rapidly eliminates water allowing for accelerated drying time and unparalleled levels of strength and finish over wood and concrete subfloors in new construction and renovation projects.

Recommended For

• Multi-Family Application / Market: Multi-family, custom homes, commercial buildings, hotels & motels, & renovation projects.

Features & Benefits

• Premium strength, smooth surface over wood and concrete subfloors
• Eliminates water rapidly for accelerated drying time
• FIRM-FILL® 3310 floor underlayment can be poured before or after drywall
• Exceptional compressive strengths from 2000 to 3300 psi
• Delivers fire resistance and improved sound performance
• FIRM-FILL® 3310 floor underlayment creates a smooth, crack-resistant surface
• Expert application; installed only by trained, Licensed Applicators
• Meets ASTM F2419, Standard Practice for the Installation of Thick Poured Gypsum Concrete Underlayments and the Preparation of the Surface to Receive Resilient Flooring