PATCHFIX EPOXY BINDER - Bostik Hong Kong Limited

PERFORMANCE PROPERTIESThe following may be used as a guide for the quantity of Patchfix Fine Filler required to obtain a specific consistencywhen Patchfix Epoxy Binder is used as a binder.Litre of PatchfixEpoxy BinderApprox. weightof PatchfixFine FillerApprox. yield(litres)(Resin & Fillers)MixedConsistencyPot Life 20 o C(min approx.)CompressiveStrength at 7 daysMPa approx.Tensile Strengthat 7 days MPaapprox.Flexural Strengthat 7 days MPaapprox1 1.7 2 Very Fluid Grout 35-45 80 16 281 3.4 3 Fluid Grout 40-50 75 14 261 5.1 4 Pourable Grout 55-65 70 13 261 6.8 5 Stiff Paste 55-65 70 11 251 8.5 6 Trowellable Mortar 55-64 70 11 241 10.2 7Dry MortarTrowellable65-70 60 10 21The following may be used as a guide for the quantity of Patchfix Coarse Filler required to obtain a specific consistencywhen Patchfix Epoxy Binder is used as a binder.Litre of PatchfixEpoxy BinderApprox. weightof PatchfixCoarse FillerApprox. yield(litres)(Resin & Fillers)MixedConsistencyPot Life 20 o C(min approx.)CompressiveStrength at 7 daysMPa approx.Tensile Strengthat 7 days MPaapprox.Flexural Strengthat 7 days MPaapprox1 1.5 2 Very Fluid Grout 35-45 80 16 271 2.3 2.5 Fluid Grout 40-50 77 14 261 3.0 3 Pourable Grout 55-65 75 13 261 4.5 4 Stiff Paste 55-65 70 11 251 6.0 5 Trowellable Mortar 55-64 67 10 231 7.5 6Dry MortarTrowellable65-70 65 10 20APPLICATION INSTRUCTIONSSURFACE PREPARATIONClean the surface and remove any dust, unsoundmaterial, plaster, oil, paint, grease, corrosion deposits oralgae. Roughen the surface and remove any laitance andexpose aggregate by light scabbling or grit-blasting.Steam cleaning, detergent scrubbing or the use ofproprietary degreaser should remove oil and greasedeposits.All residual ponding water must be removed. Thesubstrate may be moist but not wet. All anchor bolt holesmust be free of water and debris prior to placing ofPatchfix Epoxy Binder. Steel surfaces such asreinforcement bars should be grit-blasted or scabbled toremove any corrosion.MIXINGThe mix ratio is 2:1 by volume, 2 parts Part A and 1 partPart B. Any steel reinforcement and formwork should beprepared, cut to size and shape and made ready forassembly before mixing commences. Care should betaken to ensure that Patchfix Epoxy Binder is thoroughlymixed. The entire contents of the hardener (Part B) tinshould then be poured into the base (Part A) tin and thetwo materials thoroughly mixed using a suitableslow-speed drill and high shear mixing paddle. Mix for 2minutes until a fully uniform colour is obtained, the sidesof the tins should be scraped, mixing should continue fora further 2 minutes.To facilitate mixing and application at temperatures below10 o C, the separate components should be warmed in hotwater up to a maximum temperature of 25 o C beforebeginning to mix. If heated to 25 o C, the subsequentlymixed material will need to be used more speedily as thepot life will be reduced to25 - 30 minutes. Alternatively,the material should be stored in an environmentcontrolled to 20 o C and only removed immediately beforeuse.APPLICATIONPatchfix Epoxy Binder should be applied as soon as themixing process has been completed. It should bebrushed, rolled or spray applied to the prepared surfaces.The new concrete or screed should be applied to thecoated substrate within 60 minutes at 20 o C.Where Patchfix Epoxy Binder is to be used as part of arepair system to form a substrate/repair barrier, careshould be taken to achieve an unbroken coating. Onecoat should be applied and allowed to gel (cure). Asecond coat should be applied and used as the bondingcoat. In some situations (e.g. sprayed concrete repairs) itmay be advantageous to scatter dust-free sharp sandover this coat and the concrete repair mortar should beapplied prior to the Patchfix Epoxy Binder fully curing(within 90minutes of Epoxy Binder application). As soonas the Patchfix Epoxy Binder has been applied, anyPATCHFIX EPOXY BINDER PAGE 2 of 3.