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SpecChem SpecFlow

SpecChem SpecFlow

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Premium Self-Leveling Underlayment

SpecFlow is a cement-based, self-leveling floor underlayment designed for interior applications. This high-quality, non-shrinking product ensures a smooth subfloor that is feather-edged compatible, preparing surfaces for carpet, tile adhesives, and other finishes. Simple to use, SpecFlow requires only mixing with water to achieve a smooth, flat, and hard surface.

  • Self-Leveling Formula: Automatically levels itself, eliminating the need for troweling.
  • Versatile Application: Can be applied from a featheredge up to 2” thick, and up to 5” with added pea gravel.
  • Fast Setting: Accepts foot traffic within 2 to 4 hours, enabling quick project turnaround.
  • High Bond Strength: Superior adhesion to the substrate, ensuring long-lasting durability.
  • Compatible with Multiple Flooring Types: Works well with adhesives for carpet, tile, and other floor coverings.
  • Pumpable for Large Jobs: Easily applied with a grout pump, perfect for large-scale projects.
  • Smooth Finish: Produces a blemish-free surface, requiring no additional grinding or sanding.
  • Feather Edging Capability: Can be featheredged without the risk of chipping or spalling.
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Application

Surface Preparation

  • Cleaning the Surface:Remove dirt, grease, oil, asphalt, paint, curing compounds, and loose materials.
  • Concrete Surface:Should be profiled to a minimum CSP#3, with shot blasting preferred.
  • Priming:Apply SpecPrime at 100-150 sq. ft. per gallon using a brush or broom (not a roller) to ensure even coverage.
  • Porous Surfaces:May require a second application. Allow SpecPrime to dry completely before applying SpecFlow.

Mixing and Application

  • Mixing SpecFlow:Start with 4 quarts of water in a mixing container.Add one 50-pound bag of SpecFlow.Use a blending paddle attached to a heavy-duty drill (650 rpm) and mix for 2 to 3 minutes until smooth and lump-free.For extended applications, add 25 pounds of clean 3/8″ pea gravel per 50 pounds of SpecFlow during the last minute of mixing.
  • Application Instructions:Interior Floors:Pour SpecFlow over the primed substrate, spreading it with a long-handled spreader or pump it for larger areas.SpecFlow self-levels and requires no troweling.It can be applied from a feather edge up to 2″ thick, and up to 5″ with pea gravel.Typically supports foot traffic within 2 to 4 hours, depending on conditions.

Finishing/Curing

  • Finishing:SpecFlow self-levels and requires no grinding or sanding for a smooth finish.
  • Curing:The product is self-curing under most conditions.

Packaging

Available in 50 lb. bags, with coverage approximately 24 sq.-ft. at 1/4 inch thickness.

Shelf Life

SpecFlow offers a 12-month shelf life when stored properly in a cool, dry location.

Test Data

  • Set Time:Initial set time of 50 minutes and final set time of 80 minutes at 70°F.
  • Compressive Strength (ASTM C109):1 Day: 3000 psi28 Days: 5500 psi
  • Bond Strength:1000 psi after 14 days with SpecPrime (ASTM C882).
  • Flexural Strength (ASTM C348):1150 psi at 28 days.
  • Yield/Density:0.50 cubic feet per 50 lb bag; 125 lbs per cubic foot.