Unicrete

PRODUCT DATA

Unicrete is a Polyurethane Based Corrosion Resistant Flooring System, formulated to offer resistance to splash and spillage of a wide range of organic and oxidizing acids, alkalies and solvents. The system is fully steamed cleanable and ideally suited to hygiene sensitive areas.
Product is according to European Standard
EN 13813:2002 Screed materials and floor screeds - Screed materials - Properties and Requirements.
It is a formulation of Bayer Germany and the resins are imported from Bayer.
The screed is trowel applied and cures by chemical reaction and offers a slip resistant texture even in wet conditions.

PREPARATION

Surfaces must be free from loose dust, debris and other contaminants. Any oil or grease deposits can be removed by a hot detergent wash with a suitable cleaner such as Uniclean, available from Frinics. Any laitance or ingrained oil and grease will require mechanical removal by using grid blasting machine. Dust must be removed by vacuum machine before application of the product. Damage to substrate or incorrect falls should be rectified for example, using Unibond Screed before applying the Unicrete system.

SUBSTRATES

Only concrete or fine concrete sub screeds are suitable substrates for Unicrete. Concrete Substrate must be strong, stable and sound with a minimum compressive strength 25N/mm2. On no account must Unicrete be applied to sand and cement screeds.
For application on previous flooring please contact Frinics Technical services for specific advice.
Toe –in grooves must be included in the surface area into which the material can be turned to give additional anchorage to help distribute stresses produced by mechanical or thermal changes. Refer to separate application instructions for full details.

MIXING

Unicrete Polyurethane Screed is supplied in a two-part system, comprising of a primer and screed.

Primer - Add the primer hardener unit to the contents of the primer base container. Mix thoroughly using a slow speed electric drill with suitable paddle and allow standing for 5 minutes before application onto prepared concrete.

Screed - Thoroughly mix the unit base to redisperse sedimentation and then mix with the hardener unit thoroughly with a slow speed electric drill. Pour the resultant mixed material into a mechanical mixer and mix for 30 to 60 seconds. Gradually add one bag of Unicrete powder and mix for approximately 3 to 5 minutes

APPLICATION

Due to the expertise required in applying this product only approved applicators are used.
The primer layer can be applied by suitable brush or roller, the screed by trowel.

Primer - Apply using either a suitable brush or roller or airless spray to achieve an even coating of the surface area. It is recommended that the screed be applied immediately after the primer layer and in any case within 4 to 5 hours, otherwise repriming will be necessary. In this event the primer must be abraded prior to reapplication of another primer coat.

Screed - Use either 5mm or 9mm battens to gauge thickness and apply the well-mixed screed to the tacky primer, spreading evenly using metal rakes. Level off with an aluminium straight edge and finish with a trowel float.