A transparent curing, low viscosity butadiene-styrene primer with a slightly sticky surface. KOSTER SL Primer reduces the absorbency of mineral surfaces such as concrete and screed and equalizes differential absorbency rates in the substrate. It reduces the bubbling effect when working with KOSTER self leveling floor products. KOSTER SL Primer is solvent, plasticizer, and filler free. KOSTER SL Primer is water resistant; it will not be washed or rained away after curing.
Coverage: 400 to 800 sqft/gal