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Corrosion Of Fasteners
From past experiences about the failure modes of a metal building, "corrosion" is one of the major failures of the metal construction industries.Inside the interface-
Therefore, choosing the right material for screws is a very important issue for the designer.
According to the America Uniform Building Code, the proposed product time limit of the public safety is required for at least 30-
The material in which can reach its requirements is the Austentic Stainless Steel Fastener of the SUS 300 series. It can prevent the corrosion process that can happen inside the panel and cladding and not only ensures the safety of the building but also avoids the huge amount of the repair costs.
Fastener Coating
Ruspert Metal finish is a high-
Ruspert (r) treatment does not attribute its anti-
Corrosion resistance against scratches, gas, weathering and other kinds of corrosive factors including salt water. Low processing temperature, as the drying temperatures below 220ºC protects the products from metallographic changes.
It strengthens the product by preventing embrittlement and hole corrosion after the heating treatment. Electrolytic corrosion resistance since it has less contact corrosion with other materials.
Zinc |
Ruspert |
Tufcote (Ruspert) |
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Salt Spray Test |
24 hrs (2 µ) |
72 hrs (8 µ) |
240 hrs |
1000 hrs |
1500 hrs |
2000 hrs |
Kesternich Test |
NO |
NO |
5 cycle |
15 cycle |
25 cycle |
25 cycle |
Australian Standard |
NO |
Class 1 |
Class 2 |
Class 3 |
Class 4 |
Class 4 |
Basic Characteristic |
Zinc Coating Consists of 1 layer : 1. 1st layer is metallic zinc protecting the metal. |
Ruspert Coating Consists of 3 Layer: |
Tufcote Coating Consists of 3 Layers : |
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Recommend |
General use in internal application. |
External use in mild moderate industrial or marine environments. |
External use in severe marine environment. |