Performance & Testing
The Australian Stainless Steel Development Association (ASSDA) states that GR316 has a substantial advantage over lesser grades due to its chemical composition. The presence of Molybdenum in quantities greater than 2% increases the corrosion resistance of the metal by 20 to 30% particularly in regards to pitting corrosion.
Some competitors make claims that once the stainless steel mesh is powdercoated, then the advantages of using GR316 are negated.
In fact, all powdercoatings are porous, allowing water and other possible pollutants through the paint to the base metal. One would then be in a situation where one had to rely on the quality of the pretreatment process and the resistance of the base metal itself!
|AS2331.3.1 METHODS OF TEST FOR METALLIC AND RELATED COATINGS|
|Test numbers: AZT0139|
|2,000 hour salt spray test with no sign of corrosion|
|Invisi-Gard screens have been tested to withstand over 2,000 hours of exposure in an accelerated corrosion test in a salt spray chamber without any signs of corrosion.|