1. ‘√ ' means that the protective coating satisfies the requirements of Table 3.4.4.2 of the BCA Volume Two.
2. ‘Paint Top Coat Required’ means that a paint top coat treatment is needed to satisfy the requirements of Table 3.4.4.2 of the BCA Volume Two.
3. ‘Prime Painted’ refers to standard water based EnviroKote paint primer.
4. The comparative performance of the AZ+ coating with the other coatings is obtained from the following references:
   
   i) Smorgon Steel Reinforcing, Sunshine Laboratory (2007), “Test Report No. TR07-01 (including NATA Endorsed Test Certificate 06N001)”, Victoria, Australia, 10 January 2007.
   
   ii) Townsend, H. E. and Borzillo, A. R. (1997), “55% Al-Zn Alloy Coated Sheet Steel: The Versatile, Long Lasting Building Panel Steel”, 5th International Conference on Zinc Coated Steel Sheet, Birmingham, England, 12–13 June 1997.
   
   
5. The distances listed in this table defining moderate and severe environments are minimum distances and should be used as a guide only. The appropriate distance from breaking surf or from salt water not subject to breaking surf depends on regional factors, and may be significantly larger. For example, the acceptable distance from breaking surf could extend as far as 10 to 50 km inland. Local factors such as prevailing winds, topography, shielding by other buildings and trees, and exposure to rain will also influence the classification of the exposure environment. The nature of a structure and the design details of that structure may also have a significant affect on the susceptibility of individual members to corrosion. AZ+ is not recommended for use in non-sealed decks and verandahs within the splash zone of swimming pools. If you are uncertain as to the suitability of a protective coating for your intended application, please refer to AS/NZS 2312. As a guide, AZ+ is considered to last 3 to 4 times longer than galvanised coatings of equal coating mass under the same exposure conditions.

Back to AZ+ Advantage