FIRM-FILL® TRUE-SCREED® Cementitious Leveling Underlayment (CLU)

TRUE-SCREED® Cementitious Leveling Underlayment (CLU) is a Portland cement-based underlayment that is specifically designed for projects with deep-fill requirements that need to stay on budget. TRUE-SCREED® CLU provides a cost-effective method to transform cracked, uneven concrete floors into a smooth, strong surface for finished floor coverings. The product also offers exceptional surface hardness and quick drying time, keeping construction projects on schedule.

Recommended For

Concrete Toppings & Self Levelers

Cracked or damaged concrete, new construction and renovation projects, & commercial Buildings.

Features & Benefits

  • Resurfaces cracked, uneven or damaged concrete floors
  • Up to 6500 psi (44.8 MPa), portland cement
  • Superior bonding characteristics
  • No troweling required; low in-place cost
  • Expert Application; installed only by trained Licensed Applicators nationwide

External Resources

Sweets ProductTAG

CAD Details

Product Resources

Key: Word   PDF   Web Page
Product Submittal
3-Part Specifications
Project References
Drying Conditions Flyer
Post-Pour Instructions
Guidelines for Finished Floor Coverings
Technical Data Properties ASTM
Thickness 1/2″ to 2″
Compressive Strength up to 6500 psi (44.8 MPa) C109
Flexural Strength up to 1300 psi (9.0 MPa) C348
Fire Hazard Classification Flamespread index 0; Fuel Contribution 0; Smoke Density 0 E84
Sand 1/8″ (3mm) or less washed plaster or masonry sand or silica sand E11