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SpecChem Sleek 1000 SLU

SpecChem Sleek 1000 SLU

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Contractor Overview

Sleek 1000 SLU is a concrete construction chemical. Premium Self-Leveling Underlayment Sleek 1000 SLU is a cement-based, self-leveling floor underlayment designed for interior use. This single-component product efficiently creates a smooth subfloor that can be feather-edged.

Best For

  • Floor leveling
  • Underlayment preparation
  • Interior substrate correction

Key Features

  • SpecChem product chemistry
  • Built for professional concrete jobsite workflows

Material & Application Notes

Use on properly prepared substrates and follow product-specific application requirements for temperature, surface condition, and placement method.

Why Contractors Choose It

Contractors choose Sleek 1000 SLU when the product fits the field condition and helps keep the work cleaner, faster, and more predictable.

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Application

Purpose:

Sleek 1000 SLU is utilized to level or smooth interior floors in both new construction and renovation projects where floors are rough, unfinished, or uneven.

Preparation:

Follow standard ACI recommendations to prepare the surface. Ensure all surfaces are clean and free from oil, grease, paint, curing compounds, and any loose materials. Concrete substrates should be profiled to a minimum CSP#3, with shot blasting preferred.

Priming:

Use SpecPrime to prime all surfaces at approximately 100 150 sq. ft. per gallon. Apply with a brush or broom (not a roller) to ensure coverage, which will depend on the surface condition and texture. Porous surfaces may require two applications. Allow SpecPrime to dry thoroughly before proceeding.

Mixing:

  • Add 5 1/2 quarts of water to a mixing container.
  • Slowly introduce one 50-pound bag of Sleek 1000 SLU.
  • Mix using a heavy-duty drill at 650 rpm with a blending paddle for 2 to 3 minutes until smooth and lump-free.
  • For pumped applications, mix in the pump’s mixing tank for 1 to 2 minutes.
  • Avoid overwatering and re-tempering.
  • For increased thickness, add 15 pounds of clean 3/8″ pea gravel per 50 pounds of product during the final minute of mixing.

Installation:

Pour or pump Sleek 1000 SLU over the substrate, spreading the material with a long-handled spreader or appropriate sized grout pump. The product levels itself within the first 20 minutes at 70°F and typically supports foot traffic within 2 to 4 hours, depending on site conditions.

Drying Time:

Under normal conditions, floor coverings can be installed within 16-24 hours, subject to job site conditions.

Packaging

Packaged in 50 lb bags.

Shelf Life

12 months when stored in a dry, cool area away from direct sunlight.

Coverage

Approximately 24 sq-ft coverage per bag at 1/4″ thickness.

Test Data

  • Set Time at 70°F (ASTM C266):Initial Set: 40 min, Final Set: 70 min
  • Compressive Strength (ASTM C109):1 day: 2800 psi7 days: 4000 psi28 days: 5000 psi