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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 Chemical properties Durafloor HS is resistant to a wide range of chemicals. Specific data is available on request. Resistance to spillages (examples only) • Toluene • Sulphuric Acid 30% • Acetic Acid 5% • Skydrol • Sodium Hydroxide 30% • Sodium chloride • Ammonia 20% • Kerosene • Used sump oil • Petrol • Hydrochloric acid • Lactic acid 5% Surface staining may result from exposure to some aggressive chemicals. Good housekeeping practice requires spills to be quickly removed and washed. Maintenance The service life of a floor can be considerably extended by good housekeeping practices. Regular cleaning of Durafloor HS may be carried out using a rotary scrubbing machine with a water miscible cleaning agent. Application Instructions Surface preparation It is essential that Durafloor HS is applied to sound, clean, dry substrates in order to achieve maximum adhesion between the floor coating and substrate. As Durafloor HS is a relatively thin coating, the substrate must be fine textured. Any surface irregularities may show through causing excessive wear on high spots. If surface preparation produces an excessively deep profile on the substrate, advice should be sought from Parchem regarding suitable methods to produce a smooth and level substrate. New concrete floors Unless water-reduced, the floor should be at least 28 days old and give a hygrometer reading not exceeding 80% RH. Dry removal of laitance is required via light grit-blasting or grinding. Dust and other debris should then be removed by vacuum brush. Old concrete floors A sound, clean substrate is essential to achieve maximum adhesion. Light grit blasting or grinding should be carried out as for new concrete floors. Oil and grease penetration should be removed by hot compressed air treatment and primed with Nitomortar 903. Adhesion tests must be carried out to confirm sufficient preparation. Epoxy screeds Durafloor HS may be applied to Parchem’s epoxy resin screeds. High spots or trowel marks should be rubbed down and dust and other debris removed by vacuum cleaning. Mixing Stir the base and hardener components prior to mixing. Add the two Durafloor colour packs to the base component and mix in a suitable mixing vessel thoroughly using a low speed electric drill and suitable stirrer for 1 minute. Add hardener component and continue to mix for a further 3 minutes. Application 1st Coat Having made the test and primed, if necessary, apply Durafloor HS by brush or roller at a rate of 5 - 7 m² per litre or slightly heavier if medium grit is to be used. As soon as approximately one square metre has been coated, cover with the required grade of grit. The Durafloor Medium Grit should be lightly and uniformly broadcast over the wet Durafloor HS. If any areas have lost their gloss, recoat lightly before applying grit. When treating large areas, divide the floor into 1 metre strips by placing a suitable masking tape onto the floor prior to commencing application. Note: Ensure that during placement, the tape is kept true and straight. When the first coat is hard (usually the next morning - refer to “Properties” section) sweep off all excess grit. For good appearance and easier cleaning, it is important that all loose grit be removed at this time. When abutting to previous work ensure that after the removal of the tape there is no residual tape or adhesive contamination remaining. The adjoining fresh coat of Durafloor HS must be blended into the existing coat so as to avoid any seam, as this could subsequently result in adhesive failure. 2nd Coat Mix the liquids as before and using a paint roller (mohair is recommended) apply a coat over the grit. (See “Coverage”). It is important that this final coat be uniform but the exact rate of application may be varied to suit the finish required. A heavy final coat will give an easily cleanable floor but a fairly light coat will give the best slip resistance in wet conditions. Brushes and rollers must be washed thoroughly at least once each hour and immediately after finishing. Use Solvent 10 to clean up solution and when finished give brush a final wash in soap and water. Rollers should be discarded after use. At temperatures of 20°C - 30°C foot traffic may be permitted after 24 hours, and light vehicular traffic after 72 hours. However, in cold weather a longer period before use may be required. For best results, do not apply below 10°C. Allow 5-7 days before subjecting to chemical attack or severe abrasion. Durafloor HS should not be applied to any surface subject to Page 2 241 Durafloor® HS


Technical Dayta Sheet Compedium
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