Professional Application Guide - Alexseal

Substrate Preparation & PrimingSubstrate Preparation & PrimingAlways use ALEXSEAL ® Wipe Down Solvent (A9049) AFTER the primer has beenapplied. Use ALEXSEAL ® Surface Degreaser / Dewaxer (A9091) or virgin denaturedalcohol to remove oils from the wood after sanding and prior to the application ofprimer.Once the surface is properly prepared, you may proceed to fill and fair the surfaceas needed. If no filling or fairing is required, you may proceed to the application ofALEXSEAL ® Finish Primer 442 and ALEXSEAL ® Premium Topcoat 501. According to theneeds of your application, please see the following sections:• “Fairing” starting on page 32• “Surfacing” on page 36• “Final Priming & Sealing” starting on page 39• “Finishing” starting on page 41Aluminum SubstrateDegrease the aluminum substrate with ALEXSEAL ® Surface Degreaser / Dewaxer(A9091) using the “Two Rag Cleaning Method” starting on page 31.To achieve optimum adhesion and performance, the aluminum should be ground with36 - 60 grit or sand/grit blasted to a 2 - 4 mil (50 - 100 micron) profile and a very clean,silver/white appearance.Important:DO NOT wipe the surface with rags after blasting or grinding. The aluminumsurface will snag fibers that will act as wicks through the protective primerand could decrease corrosion resistance.Abraded aluminum surfaces should be cleaned using clean, dry compressed air and abristle or nylon broom to remove all dust before product application.Application of ALEXSEAL ® Protective Primers should occur as soon as possible (within12 hours) after the abraded or blasted metal preparation, provided the painting facilityis located away from coastal saltwater regions and the aluminum substrate is keptindoors, dry and clean. Aluminum will begin to oxidize immediately after sanding orblasting, and this process will be more rapid in coastal locations. For the best adhesion,surfaces should be primed as quickly as possible after preparation.During the system application, after the application of the ALEXSEAL ® ProtectivePrimers, all surfaces should be cleaned using clean, dry compressed air and clean ragsto remove all dust before product applications throughout the system. Apply ALEXSEAL ®Protective Primers in accordance with their respective “Technical Data Sheets” startingon page 64.According to the needs of your application, please see the following sections:• “Fairing” starting on page 32• “Surfacing” on page 36• “Final Priming & Sealing” starting on page 39• “Finishing” starting on page 41Steel SubstrateDegrease the steel substrate with ALEXSEAL ® Surface Degreaser / Dewaxer (A9091)using the “Two Rag Cleaning Method” starting on page 31.To achieve optimum adhesion and performance, steel should be prepared by sand/gritblasting to near-white metal Sa 2.5 (SSPC-SP10-85) and/or ground with 36 - 60 grit to a2 - 4 mil (50 - 100 micron) profile.Important:DO NOT wipe the surface with rags after blasting or grinding. The steelsurface will snag fibers that will act as wicks through the protective primerand could decrease corrosion resistance.Steel surfaces should be cleaned using clean, dry compressed air and a bristle or nylonbroom to remove all dust before product application.After the application of an ALEXSEAL ® Protective Primer, but before each subsequentproduct application, all surfaces should be cleaned using clean, dry compressed air andclean rags to remove all dust and contaminants.Application of ALEXSEAL ® Protective Primers should occur as soon as possible (within12 hours) after the abraded or blasted metal preparation, provided the painting facilityis located away from coastal saltwater regions and the aluminum substrate is keptindoors, dry and clean. Apply ALEXSEAL ® Protective Primers in accordance with theirrespective “Technical Data Sheets” starting on page 64.Once the surface is primed with Protective Primer 161, CF Metal Primer 156, or CorSpec 135, you may proceed to fill and fair the surface as needed. If no filling and fairingis required, you may proceed to the application of ALEXSEAL ® Finish Primer 442 and/or an ALEXSEAL ® Topcoat. According to the needs of your application, please see thefollowing sections:• “Fairing” starting on page 32• “Surfacing” on page 36• “Final Priming & Sealing” starting on page 39• “Finishing” starting on page 41Once the surface is primed with Protective Primer 161, CF Metal Primer 156, or CorSpec 135, you may proceed to fill and fair the surface as needed. If no filling and fairingis required, you may proceed to the application of ALEXSEAL ® Finish Primer 442 and/oran ALEXSEAL ® Topcoat.28ALEXSEAL ® Professional Application Guide version 0.4.3ALEXSEAL.COM > Europe: +49 0 40 75 10 30 > North America: +1 843 654 775529