Epoxy Application Guide - Loctite.ph

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Repair ApplicationsPUMP REPAIRS (cont.)REBUILDING IMPELLERS1. Prepare the surface as in step 1 on previous page. To aidin penetration of the epoxy into cavities, warm the impellerto 120-140°F (50-60°C) before applying product.2. For severely eroded blades, tack weld expanded metalfrom the edge to be rebuilt to the existing metal surface.(See figure 42)4. To finish the repair, brush apply a 15-20 mil coating ofBrushable Ceramic to entire impeller area, filling in porousspots in the casting. Once the first coat has cured, apply asecond coat of Brushable Ceramic. (See figure 44)Figure 44. Two coats of Brushable Ceramic seal the metal andprovide a low friction surface.Figure 42. Expanded metal, used over damaged blades, rebuildsand reinforces the repair area.3. Apply epoxy over the expanded metal, forcing the epoxythrough the mesh, being careful to avoid air entrapment.Smooth the finish with a thin plastic or metal applicator.(See figure 43)Note: After full cure, balance impeller before returningto service.For technical informationand/or product availability,Call 1-800-LOCTITE(1-800-562-8483)or visit us on the web atFigure 43. Coat expanded metal with epoxy and smooth out finish.16 Epoxy Application Guide
Application ExamplesFIXMASTER ® EPOXIESProblem:Equipment:Solution:Gap between ceramic tileand flange lipsDischarge flange faceof cycloneFIXMASTER ® WearResistant PuttyFIXMASTER ® Wear Resistant Putty fills the gap between linerand flange, created when new ceramic tiles were installed.Wear Resistant Putty is troweled into the gap and either"wet finished" (see Application Tips on page 4) or machinedto exact tolerances.Problem:Equipment:Leaking flangeFlange face on achemical pumpSolution: FIXMASTER ®Aluminum PuttyFlange faces, eroded by chemical exposure, were previouslyrepaired by welding and machining. FIXMASTER ® AluminumPutty repairs aluminum faces at a lower cost and with far lessdowntime than conventional methods.Problem:Equipment:Severely damaged pipeSlurry transport pipeSolution: FIXMASTER ®Metal Magic SteelDamage to this pipe was so severe that expanded mesh iswelded over the opening to provide reinforcement for theepoxy application. FIXMASTER ® Metal Magic Steel is pressedover the mesh to fill and seal the application area. The pipe isready for service in just minutes.NORDBAK ® EPOXIESProblem:Equipment:Uneven tiled liningInlet section of heavymedia cycloneSolution: NORDBAK ®Brushable CeramicIn this two-step process, NORDBAK ® Wearing Compound isused to rebuild the flat disk area of the cyclone intake.NORDBAK ® Brushable Ceramic is then applied to provide alow-friction finish to prevent turbulence created byirregularities in the tile profile.Problem:Equipment:Eroded processingequipmentCyclone apexSolution: NORDBAK ®Wearing CompoundA form on the end of the apex is used to rebuild the interior toits original dimensions. NORDBAK ® Wearing Compound isapplied here with a gloved hand to fill the eroded area andsmooth the finish.Problem:Equipment:Damage from abrasivecoal handlingHeavy media cycloneSolution: NORDBAK ®Wearing CompoundBoth the inlet section and vortex finder of this heavymedia cyclone are rebuilt and protected with NORDBAK ®Wearing Compound.Problem:Equipment:Erosion of internalstructureSide suctionmedia pumpSolution: NORDBAK ®Wearing CompoundA pump divider designed to reduce the turbulence inside thepump was almost completely worn away due to abrasion. Itwas rebuilt using a form over which NORDBAK ® WearingCompound was applied until the repaired section replicated theoriginal divider.Problem:Equipment:Solution:Worn bronze partsPropeller castingNORDBAK ® Pneu-Wearand Brushable CeramicSevere abrasion had worn out a critical part of a marinepropeller. To rebuild the surface and provide maximumprotection from salt water exposure, NORDBAK ® Pneu-Wearwas applied. The area was then coated with NORDBAK ®Brushable Ceramic to provide a durable, low-friction finish.Epoxy Application Guide17
Page 1: Epoxy ApplicationGuideSteel PuttySu
Page 4 and 5: General InfoMIXINGThe following tip
Page 6 and 7: General InfoAPPLICATION TIPS (cont.
Page 8 and 9: Repair ApplicationsPIPE AND DUCTING
Page 10 and 11: Repair ApplicationsMETAL SURFACE RE
Page 12 and 13: Repair ApplicationsSHAFT REPAIRS (c
Page 15 and 16: Repair ApplicationsHEAT EXCHANGER A
Page 17: Repair ApplicationsPUMP REPAIRSPump
Page 21 and 22: Product SelectionCHOOSING THE BEST
Page 23 and 24: Product SelectionNORDBAK ® EPOXIES

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