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BRAND-NEW
Valde Steel: The Corrosion Resistance Guarantee for Powder Coated Steel Surfaces
C © Inver
orrosion is a major challenge for the industrial paints and coating sector because it is directly responsible for the quality degradation of products over time. The coating product therefore must adapt to the complexity and variety of materials used in the industry and in particular assure protection of edges that tend to accumulate less coating compared to flat surfaces.
Corrosion categories C1 Very weak C2 Low C3 Medium C4 High C5-I (Industry) Very High
© Inver
C5-M (Marine) Very High
Internal Heated buildings Clean atmosphere Unheated buildings with condensation High grade production rooms with humidity Chemical plants, swimming pools, shipyards Buildings or area with permanent condensation and high pollution Buildings or areas with permanent condensation and high pollution
Substrate Pre-treatment
Surface preparation
VALDE STEEL ST2
Steel
Mechanical
Sandblasting Sa 2.5 Ra 6.3 ou 12.6
VALDE STEEL ST2
Steel
Chemical
3
System Name
1 Figure 1: New powder coatings that are suitable for indoor and outdoor environments.
Atmospheres with low levels of pollution Urban and industrial atmospheres, moderate sulfur dioxide pollution Industrial and coastal areas with moderate salinity Industrial area with high humidity and aggressive atmospheres
Hot Dip Mechanical Galv. Steel
4
VALDE STEEL HD2
Hot Dip Chemical Galv. Steel
3
12
N. 44 - MARCH/APRIL 2017 - international PAINT&COATING magazine
Figure 3: Recommended coating system.
Coastal and marine areas with high salinity
Primer TopCoat
Valde Steel VALDE STEEL HD2
Figure 2: Corrosion categories.
External
P-0554 P-0106 P-1097 P-0737 P-0554 P-0106 P-1097 P-0737 P-0554 P-0106 P-1097 P-0737 P-0554 P-0106 P-1097 P-0737
PE/P/Q PE/P/M PE/P/S PE/P/Q FTX PE/P/Q PE/P/M PE/P/S PE/P/Q FTX PE/P/Q PE/P/M PE/P/S PE/P/Q FTX PE/P/Q PE/P/M PE/P/S PE/P/Q FTX
Number of Organic Layers
Corrosivity Class
Approval Number
2
C4
PE-0066
2
C4
PE-0069
2
C5IH C5MH
PE-0070
2
C5IH C5MH
PE-0071