Technical description
2.5 Surface treatment
BA 2030 (2KJ4)
Operating Instructions, 07/2020, A5E50009094A/RS-AL
17
2.5.2 Painted version
The corrosion protection system is classified according to the corrosiveness categories in
DIN EN ISO 12944-2.
Table 2- 2 Paint according to corrosiveness categories
Corrosiveness category C1, unpainted for gearbox and motor housings made of aluminum
• Indoor installation
• Heated buildings with neutral atmospheres
• Resistance to greases and some resistance to mineral
oils, aliphatic solvents
Corrosiveness category C1 for normal environmental stress
1-component hydro paint, top coat
• Indoor installation
• Heated buildings with neutral atmospheres
• Resistance to greases and some resistance to mineral
oils, aliphatic solvents
• Standard paint for gearbox housings made of cast
Corrosiveness category C2 for low environmental stress
2-component - polyurethane top coat
• Indoor and outdoor installation
• Unheated buildings with condensation, production
areas with low humidity, for example warehouses and
sports facilities
• Atmospheres with little contamination, mostly rural
areas
• Resistance to greases, mineral oils and sulfuric ac-
id (10%), caustic soda (10%) and some resistance to
Corrosiveness category C3 for medium environmental stress
2-component epoxy zinc phosphate base
coat,
2-component polyurethane top coat
• Indoor and outdoor installation
• Production areas with high humidity and some air
contamination, for example food production areas,
dairies, breweries and laundries
• Urban and industrial atmospheres, moderate contam-
ination from sulfur dioxide, coastal areas with low salt
levels
• Resistance to greases, mineral oils, aliphatic solvents,
sulfuric acid (10%), caustic soda (10%)
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