Providing High Quality Hot Dip Galvanized Coatings Since 1967

FAQ’s (Tips)

In order help you get the best results on your galvanizing project, we have put together several FAQ’s, or tips, on what can be done do to improve the results. We hope this information helps you understand the idiosyncrasies of the galvanizing process, and gives you realistic expectations for attainable results.  Please use the search feature in the top right or scan the articles below for information that we have learned over the years.  We are pleased to share this information with you to help your project achieve the highest quality galvanized coating:

And a few general tips:

  • Use good quality materials.  The quality of the materials used plays a key role in the quality of the galvanized coating.
  • Avoid high reactive steels and weld material.  These have elevated levels of silicon or phosphorous and can lead to abnormal coatings.
  • Avoid pipe that has lacquer or varnish finishes from the manufacturer; these may require sandblasting.
  • Remove all welding flux residue and heavy anti-splatter compounds prior to delivery to our facility.  These residues will result in bare spots.
  • Avoid mixing new steel with old, rusty steel.  This may result in over-pickling and pitting of the newer material.
  • Fully sandblast all cast and malleable iron.
  • Avoid priming or painting your material prior to galvanizing, as this will require sandblasting prior to processing to remove these coatings.
  • Drill adequate drainage and ventilation holes to allow free flow of all solutions.
  • Avoid the use of any pre-galvanized or plated material.  This will result in additional stripping charges.
  • Provide adequate means to suspend your material from overhead racks for dipping.
  • Do not use aluminum in your fabrications.  Any aluminum will need to be removed and re-attached after galvanizing.
  • Seal weld all overlapping or contacting surfaces.  Larger overlaps may need additional thru drilled holes.
  • Be aware of assemblies that have a tendency to warp due to the heat of galvanizing, such as sheeting welded into a heavier frame.
  • Use water-soluble markers for shop markings.  This will prevent additional cleaning charges.
  • Be cautious of tight moving assemblies, such as hinges or sliding pins.  These may freeze together during galvanizing, requiring additional work to restore function.