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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 ROOFING WATERSTOPS WATERPROOFING JOINT FILLERS TIMBER FLOORING ALPHABETICAL INDEX 260 Page 2 Properties Compressive strength at 28 days (40 mm cubes cured at 25°C 65% RH): >27 MPa Flexural strength at 28 days (rectangular prisms cured at 25°C 65% RH): >7 MPa C & CA accelerated wear test at 28 days1: Category Good Highest rating BRE impact resistance at 28 days (BS 8204: part 1: 1987): Category A Highest rating TRL slip resistance test Dry Wet Rapra 4S rubber slider: Excellent Satisfactory TRL rubber slider: Excellent Satisfactory Minimum thickness: 6 mm Maximum thickness: 12 mm Traffic time (10°C to 25°C) Foot traffic: 2 - 4 hours Light traffic: 24 - 36 hours 1 Refer to Concrete Society Technical Report No 34. 2 Excessive loading should be avoided for 7 days after application. Chemical properties When cured, Cemtop XD has good resistance to water and oils. However, if continual contact with water is expected or if attack from organic solvents, organic or inorganic acids is likely, the surface should be protected by a suitable Nitoflor resin based floor coating. For specific information contact your local Parchem branch. Maintenance If Cemtop XD has been overcoated with any of the Nitoflor range of resin floor coatings, cleaning should be in accordance with the recommendations stated in the relevant product data sheet. Where Cemtop XD has not been overcoated it may be cleaned with proprietary rotary scrubbing machines. It should not be cleaned with strong acidic or alkaline based cleaning agents. Application Instructions The installation of Cemtop XD is a specialised activity. The product should be applied by a Parchem recommended contractor who has been fully trained in the use of the product, using equipment supplied or approved by Parchem. Although the preferred method of application is by the use of a continuous mixer pump, it may, in certain circumstances, particularly for floor areas less than 50 m², be more practical to mix and apply the product by hand. Application Single layer system - thicknesses up to 12 mm - Cemtop XD Thoroughly prepare the floor surface. Prime the surface with Durafloor Level Prime (1:5 primer to clean water ratio by volume) and allow to dry (45 minutes approximately at 23°C). Reprime the surface with Durafloor Level Prime (1:3 primer to clean water ratio by volume) and allow to dry (90 minutes approximately at 23°C). Apply Cemtop XD to the required thickness onto the dry, primed surface. For a final smooth finish, spike roll using the Cemtop spike roller. Dual layer system - thicknesses over 12 mm - Cemtop GP and Cemtop XD Thoroughly prepare the floor surface. Prime the surface with Durafloor Level Prime (1:5 primer to clean water ratio by volume) and allow to dry. Reprime the surface with Durafloor Level Prime (1:3 primer to clean water ratio by volume) and allow to dry. Apply Cemtop GP underlayment to the required thickness onto the dry, primed surface. When hardened, prime underlayment material with Durafloor Level Prime (1:3 primer to clean water ratio by volume). Apply 6 mm Cemtop XD to the primed underlayment. If it is not planned to apply Cemtop XD on the same or the following day as Cemtop GP, please contact your local Parchem branch for advice. The objective of priming is to seal the existing floor to prevent release of air which may otherwise rise to form bubbles and pin holes in the surface of the Cemtop XD product. Additionally it aids adhesion between the existing floor and Cemtop XD and also between Cemtop XD and the underlayment material. Mixing When mixing Cemtop XD by hand use 2.55 litres - 2.85 litres (Av. 2.70 litres) of cool clean drinking water per 15 kg bag. Limitations Concrete slabs onto which Cemtop XD and Cemtop GP are to be applied must have a surface temperature of at least 10°C during application. Protect from freezing for 48 hours after placement. For temperatures in excess of 25°C during application, contact Parchem Technical Services. To prevent rapid drying, protect from direct sunlight and/or drying winds during application and the initial curing period. If the existing floor on to which any of the Cemtop products are applied moves or cracks, reflective cracking may occur. Fosroc® Cemtop XD


Technical Dayta Sheet Compedium
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