Moisture Control System Brochure

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Self Leveling



KOSTER LevelStrong SLU is a high quality, self-leveling, fast setting, cementitious underlayment intended for interior use on concrete floors. It is easy to mix, pour, and spread, producing a smooth, level surface ready to receive flooring systems. It cures crack free in a few hours. KOSTER LevelStrongTM SLU may be applied onto a variety of substrates such as concrete, screed, and KOSTER VAP I® 2000 moisture control systems. KOSTER LevelStrongTM SLU accepts all major types of floor coverings and is compatible with most adhesives. It is not intended as a wearing surface.


KOSTER LevelStrong High Strength SLU is a high quality, self-leveling, fast setting, cementitious underlayment intended for interior use on concrete floors. It is easy to mix, pour, and spread, producing a smooth, level surface ready to receive flooring systems. It cures crack free in a few hours with high compressive strength. KOSTER LevelStrongTM High Strength SLU may be applied onto a variety of substrates such as concrete, screed, and KOSTER VAP I® 2000 moisture control systems. KOSTER LevelStrongTM High Strength SLU accepts all major types of floor coverings and is compatible with most adhesives. It is not intended as a wearing surface.


KOSTER SL is a high quality, fast curing underlayment that 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 accepts all major floor coverings and is compatible with most adhesives. It is resistant to abrasion and wear.



KOSTER SL Premium is a high quality, fast setting, fiber reinforced 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 Premium accepts all major floor coverings and is compatible with most adhesives. It is resistant to abrasion and wear.