At the Association we strive to offer the best advice on hot dip galvanizing. Please click on any of the links below, which rectify incorrect impressions concerning hot dip galvanizing.

• Hot dip galvanizing of high strength fasteners is not recommended, due to the propensity for fracture as a result of hydrogen embrittlement
• Discontinuations and Thin Areas on an Applied HD Galvanized Coating
• Hot dip galvanizing provides both barrier and cathodic protection
• Once rust stains appear on a weathered hot dip galvanized surface
• The corrosion resistant life of a zinc coating is the same, regardless of the process by which it is applied.
• Repairs to hot dip galvanized steel in conformance with SANS121 (ISO1461)
• Evidence of rust staining is a certain indication that a hot dip galvanized coating has reached the end of its protective life.
• The galvanizer can play a major role in preventing the formation of undesirably thick hot dip galvanized coatings.
• Specify HEAVY DUTY hot dip galvanizing or cadmium electro-plating for superior corrosion protection of fasteners
• Hot dip galvanized surfaces are extremely difficult to overcoat with paint whether for aesthetic reasons or for additional protection.
• If I require a thicker, and hence, more durable galvanized coating I must specify “double dipping” or, “double spelter”.
• The hot dip galvanizing process has a detrimental effect on the strength properties of steel.
• Zinc corrodes in the same way as steel.
• Hot dip galvanized coatings provide a surface on which it is extremely difficult to apply paint.
• The chemical analysis of steel determines the extent to which the Fe / Zn alloy layers in a hot dip galvanized coating grow during immersion in the molten zinc.