HENRY® 445 Fast-Setting
Flooring Underlayment

A fast-setting, cement-based underlayment that is ideal for patching and leveling concrete.

• Versatile – ideal for patching and leveling concrete
• Fast setting – ready for most flooring in 1-2 hours
• Excellent fill characteristics
• Non-shrinking for reduced installation time
• High compressive strength
• 5-year limited warranty

Applications:

HENRY 445 Fast-Setting Flooring Underlayment is a cement-based underlayment used for patching and leveling concrete subfloors on all grade levels.  Recommended for light traffic areas.

Bonds To:

HENRY 445 Fast-Setting Flooring Underlayment bonds to concrete (interior and exterior under flooring; must be dry and free of excess alkali), suspended and wood underlayments (not for stripwood over 4” wide), ceramic tile, terrazzo, marble and polymeric poured floors, primed poured-in-place gypsum subfloors, and radiant-heated subfloors where the surface temperature does not exceed 85°F (29°C).

Patching and leveling subfloors

Smooth-edge trowel

40 sq. ft.(4.4 sq. yd.)/25 lb. at 1/8” thick