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Painting guide F E TECHNICAL TECHNICAL INFORMATION INFORMATION DURAGAL EASY PAINTING CORROSION PROTECTION GUIDE CDuraGal Easy Painting Corrosion Protection Guide INDEX Introduction Environments Atmospheric classi ?cations Warnings About Especially Harsh C

F E TECHNICAL TECHNICAL INFORMATION INFORMATION DURAGAL EASY PAINTING CORROSION PROTECTION GUIDE CDuraGal Easy Painting Corrosion Protection Guide INDEX Introduction Environments Atmospheric classi ?cations Warnings About Especially Harsh Corrosion Conditions General Warnings Salt acid rain farming animal husbandry other corrosion causes Special precautions Salt spray contamination Animal or bird urine or faeces Soot from burning sugar cane If regularly dowsed with highly mineralised water Columns stumps posts etc in buried in concrete or in contact with soils Chemical attack The Corrosion Life of DuraGal Corrosion life of unpainted DuraGal The corrosion life of painted DuraGal Zinc coating comparison Protection of the bore of DuraGal hollow sections White Rust or Zinc Storage Stain Avoiding white rust Preventative actions Remedial treatment Warning to powder-coaters Painting Hints Surface preparation Paint preparation Painting conditions Paint application Quick drying ?nishes Recommended Paint Systems Corrosion protection for DuraGal - powder coating Painting fabrications welded from DuraGal with black steel attachments Protection of bolts and bolt holes Corrosion protection for DuraGal - design tables Table - Protection for atmospheric classi ?cations up to and including AS NZS tropical Table - Protection for atmospheric classi ?cations up to and including AS NZS marine Table - Point of sale decoration for factory manufactured items Protection for dry mild internal environments in buildings Table - Protection for wet internal environments in buildings Protection for harsh wet internal environments in buildings Corrosion protection for DuraGal - substitution tables Coating Systems ?? Paint Manufacturers nominated systems for DuraGal PAGE to to February Page CDuraGal Easy Painting Corrosion Protection Guide INTRODUCTION Cost E ?ective High Tensile Steel Products with a Fully Prepared Surface DuraGal steel hollow sections have been developed to provide cost e ?ective corrosion resistance as well as a smooth easy to use surface ?nish The advantages of the DuraGal prepared surface are now available in a full range of DuraGal coldformed open pro ?les - angles channels and ats Extending the DuraGal Family of Products Architecturally Decorative Finish which is Kind to the Environment The steel surface prepared in a closely controlled factory environment eliminates or signi ?cantly reduces the need for messy open air blasting chemical hand or power tool cleaning and its e ?ect on the environment DuraGal sections are mechanically cleaned to AS Class and then chemically cleaned prior to hot dip galvanising A zinc coating weight of gms m microns is applied A surface conversion coating is then applied to help prepare the surface for later painting and to assist prevent white rust during transport and storage Then in the case of equal angles greater than x channels and ats a clear barrier polymer coat is applied Cost E ?ective The most cost e ?ective way to use DuraGal products is unpainted touching up any welds The Table on ? ? page called ??Corrosion life of Unpainted DuraGal in AS NZS Atmospheric Environments ? indicates which combinations of environment and expected life to ?rst maintenance that unpainted DuraGal can cover However if painting is required the