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SpecChem SpecFlow Premium Self-Leveling Underlayment 50 lb.

SpecFlow is a cement based, non-shrinking, self-leveling floor underlayment designed for interior use. This single component product produces a smooth subfloor that will accept floor coverings in as little as 12 - 18 hours after installation. Just mix SpecFlow with water, pour or pump, and it will seek its own level to produce a smooth, flat hard surface.


  • SpecFlow, when properly mixed, produces a flowable underlayment with a flow time of 20 minutes at 70°F
  • Can be featheredged without fear of chipping or spalling.
  • Self-leveling, requiring no troweling
  • Can be pumped
  • Produces a smooth, blemish free surface, requiring no grinding or sanding
  • Is compatible with subsequent adhesiuves for carpet, tile and the like.


  • SpecFlow can be applies in thicknesses ranging from a featheredge up to 2". It can be installed up to 5" in thickness with the addition of pea gravel. SpecFlow will develop a superior bond to the substrate and will normally accept foot traffic within 2 to 4 hours depending up heat, humidity and other jobsite conditions.
Tech Data Sheet

MSDS Sheet

Model : SFLOW
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