25x20Kg bags, 50x20Kg bags
COVERAGE: 20kg pack will cover approximately 4.2 sq. metres at 3mm depth
PREPARATION WHEN USING TILEMASTER RAPID LEVEL 30:
Before starting, all substrates must be clean, dry and strong enough to support the weight of the leveller and the final floor covering being applied. Remove all dust, dirt, oil, grease and other contaminants that may affect adhesion. Where traces of adhesive residue remain, these must be checked to ensure that they are not softened with water and that they are strong, sound and well adhered to the substrate in order to receive a levelling compound.
When installing moisture sensitive floor coverings, concrete or sand/cement screed should be confirmed dry by consistent moisture readings: <75% relative humidity (RH) or <0.5% residual moisture when tested in accordance with BS 8203. Where a structural damp proof membrane is not present or where rising damp and/or residual moisture gives moisture readings up to 98% RH, it is recommended to apply a liquid damp proof membrane such as Tilemaster One Coat DPM prior to the application of Rapid Level 30.
Surface laitance should be removed from concrete and sand/cement screed surfaces prior to the application of Rapid Level 30.
Most substrates should be primed prior to the application of Rapid Level 30. Priming will stabilize the substrate, minimize the risk of pinholes forming, allow for the best flow properties and also prolong the working time of the product. For priming dilution rates please refer to Page 3 of this data sheet.
MIXING AND APPLICATION:
Mix by adding powder to water, approximately 4.8 – 5.0 litres of water to 20kg of Rapid Level 30. We suggest starting with 4.8 litres of water which can then be increased to a maximum of 5.0 litres if necessary. Do not exceed 5.0 litres of water.
Exceeding 5.0 litres of water per 20kg unit will result in water bleed and therefore extended drying times and a weakened mix.
Mix ideally with an electric paddle until you obtain a smooth and lump free consistency. When mixed allow to stand for 2 minutes and stir again before application.
Please note – once mixed, Rapid Level 30 remains workable in the bucket for 10 – 15 minutes. Due to the Ultra-Rapid setting properties of Rapid Level 30, it is important to apply the mixed product without delay.
Pour a small quantity onto the prepared surface and trowel down lightly to a depth between 2 and 15mm. The use of a spiked roller is recommended immediately in order to remove entrapped air and smooth out flow lines. If you wish to build to a greater depth of 15mm, allow to dry and prime between applications.
SETTING AND COVERING:
Rapid Level 30 will start to cure 30 minutes after application. The setting time will depend on site conditions/temperatures, it will be slowed by lower temperatures and accelerated by higher temperatures. If there is no air flow within site conditions, the drying time may be restricted. Rapid Level 30 must be left to dry before applying the final decorative surface flooring. This is typically after 45 – 60 minutes for ceramic, porcelain and natural stone tiles and after 90 minutes for soft flooring such as vinyl. However, it can vary and can be faster depending on the choice of surface flooring.
The critical moisture content for the flooring in question must be observed.