The ColourSealant Medium Oak Laminate & Timber Flooring Sealant from UNIKA is a fantastic water based acrylic gap filler that is able to be painted or lacquered over when it is dry, it is also highly flexible & will not crack with it instead expanding & contracting with a floor. This flooring sealant is entirely waterproof when it is cured & is suitable for use with most laminate & timber floors, this product comes with 310ml of sealant in a single tube, meaning it will allow you to safely seal a large flooring space with ease.