RLA BulkFill UT Leveller 20kg is a high build self levelling compound with excellent flow properties formulated for self-levelling differences from 3 to 70 mm in thickness on new or existing internal concrete substrates. It develops a smooth and even surface with high levels of mechanical resistance, ensuring the subsequent installation of floor coverings. It is ready to accept most floor coverings after approximately 24-36 hours and can be over coated with TruLevel Levelling compounds from 24 hours for quick and reliable installation. It is suitable for the application of carpet, carpet tiles, ceramic tile and floating floors finishes. TruLevel High Build is pumpable for ease of installation.