KOSTER SL Flow is a high quality, fast setting, thin layer application underlayment that is non-shrinking and provides a smooth, level surface ready to receive flooring systems. It may be applied onto a variety of substrates such as the KOSTER VAP I 2000 coatings, concrete, etc. KOSTER SL Flow accepts all major floor coverings and is compatible with most adhesives.
Coverage: Approx. 1/8 in-50 sqft/bag