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Technical Dayta Sheet Compedium

CONTENTS CONCRETE REPAIR CORROSION CONTROL GROUTS & ANCHORS PROTECTIVE COATINGS INDUSTRIAL FLOORING SURFACE TREATMENTS JOINT SEALANTS CONCRETE JOINTING JOINT FILLERS WATERPROOFING WATERSTOPS ROOFING TIMBER FLOORING ALPHABETICAL INDEX Durafloor® Leveltop Rapid Application Instructions Preparation The substrate should be clean, sound and free from loose material and contamination such as plaster, oil, paint and grease. New concrete should be at least 14 days old. Excess laitance should be removed by light scabbling or captive shot blasting followed by vacuuming to remove dust debris. Priming The object of priming is to seal the substrate to prevent air release from the subfloor rising and forming bubbles and pinholes on the surface of the Durafloor Leveltop Rapid. Extremely porous substrates may require two priming/ sealing coats. If two primer coats are required, the second coat must be allowed to dry before applying the Durafloor Leveltop Rapid. Prime the surface with Durafloor Level Prime Concentrate broken down with 4 parts water to 1 part Durafloor Level Prime (by volume) and allow to dry. For application where water vapour, seepage or moisture are of concern, pre-treatment and treating with Emer-Proof Aqua Barrier** is recommended. **Refer to separate data sheet. Application of Durafloor Leveltop Rapid over Emer-Proof Aqua Barrier Apply the first two (2) coats of Aqua Barrier as per the TDS and allow to cure. When using Emer-Proof Aqua Barrier under Durafloor Leveltop Rapid, it is essential that a third coat of Emer-Proof Aqua Barrier is applied to act as a bonding coat. The bonding coat of Emer-Proof Aqua Barrier is to be applied at 5m²/L and Durafloor Leveltop Rapid must be applied whilst the bonding coat is still tacky. If the bonding coat has been allowed to cure to a tack free state, a further coat must be applied prior to application of Durafloor Leveltop Rapid. Mixing Pour required amount of water into suitable mixing container. Slowly add Durafloor Leveltop Rapid whilst mixing with a suitable mixer such as a Festo Mortar Mixer. After all powder is added continue to mix for 2 - 3 minutes to ensure even consistency throughout. During use, avoid inhalation of dust and contact with skin and eyes. Wear suitable protective clothing, gloves, eye protection and respiratory protective equipment. - Each 20 kg bag of Durafloor Leveltop Rapid requires the addition of 4.5 litres of clean, cool water to produce a trowellable consistency. Installation Application procedure is as follows: „ Thoroughly prepare the floor surface. „ Reprime the surface if necessary, and allow to dry. „ Pour the mixed material on to the dry primed surface and spread with a trowel. Best results are achieved when the levelling is a continuous process by working the material into the primed surface firmly. „ Apply Durafloor Leveltop Rapid by trowelling firmly ensuring the mortor ‘wets’ the surface. Allow 10 minutes (approx.) before trimming the excess and smoothing off. As soon as the mortar has hardened, levelling (if applicable) can occur. Note: if the mix stiffens it should be discarded, do not attempt to re-mix with water. „ As soon as the Durafloor Leveltop Rapid has hardened, the surface of the floor can be overlayed with any of the Parchem range of cementitious levelling compounds. Cleaning Durafloor Leveltop Rapid and Durafloor Level Prime should be removed from tools and equipment with clean water immediately after use. Hardened material can only be removed mechanically. Limitations Durafloor Leveltop Rapid has a 28 day compressive strength of 25 MPa, it is designed as an underlay material and will provide the advertised properties only when water addition is not exceeded. Durafloor Leveltop Rapid must not be used in areas where back water pressure is likely. Refer to Parchem for application where rising damp or hydrostatic water pressure is likely. To prevent rapid drying protect from direct sunlight and/or drying winds during application and the final curing period. If the surface onto which Durafloor Leveltop Rapid is applied moves or cracks, reflective cracking may occur. Page 2 219


Technical Dayta Sheet Compedium
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