In addition to standard surface protection, motors and gear units have the option of surface protection OS1 to OS4. Also available is the special option Z that specifies large surface recesses filled with a rubber-like material for a smooth bodied unit.
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Technical data
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Surface protection
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Coating structure
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Coating thickness [mils] (µm)
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Suitable for1
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Exterior
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Interior
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OSG
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1 × Dip primer
1 × Single-component primer
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Minimum
1.5 to 2.0
(40 to 50)
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Generally not suitable as finish coat. Additional coating to be applied after shipment from SEW-EURODRIVE.
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Standard
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1 × Dip primer
1 × Single-component top coat
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Minimum
1.5 to 2.0
(40 to 50)
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Normal ambient conditions
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–
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Heated buildings with clean atmospheres (e.g., offices, shops, schools, hotels).
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OS1
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1 × Dip primer
1 × Single-component primer
1 × Single-component top coat
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Minimum
3.0 to 4.0
(75 to 100)
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Low environmental impact
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Atmospheres with low levels of pollution.
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Unheated buildings where condensation may occur (e.g., depots, sports halls).
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OS2
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1 × Dip primer
1 × Two-component primer
1 × Single-component top coat
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Minimum
4.0 to 5.0
(100 to 125)
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Medium environmental impact
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Urban and industrial atmospheres, moderate sulfur dioxide pollution. Coastal areas with low salinity.
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Production rooms with high humidity and some air pollution (e.g., laundries).
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OS3
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1 × Dip primer
1 × Two-component primer
1 × Two-component top coat
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Minimum
5.0 to 6.0
(125 to 150)
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High environmental impact
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Industrial areas and coastal areas with moderate salinity.
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Chemical plants, shipyards.
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OS4
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1 × Dip primer
1 × Two-component primer
1 × Two-component top coat
1 × Two-component clear coat
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Minimum
7.5 to 9.0
(190 to 230)
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Very high environmental impact
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Industrial areas with high humidity and aggressive atmosphere.
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Buildings or areas with almost permanent condensation and with high pollution (e.g., food processing, breweries, dairies).
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1) Conditions listed are general recommendations only. Each environment must be evaluated independently.
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Symbol
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Coating Type
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Coating Supplier
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Product
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Dip primer
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Various per MS 01 901 _ 99
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Single-component primer (water-based)
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Burke Industrial Coatings
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Prime Solution 5255
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Single-component top coat (water-based)
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Burke Industrial Coatings
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Superlife 316 DTMR
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Two-component epoxy primter (water-based)
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Burke Industrial Coatings
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Steel Plus Epoxy Primer
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Two-component epoxy top coat (water-based)
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Burke Industrial Coatings
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Steel Plus CE 316 Epoxy
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Two-component clear epoxy top coat (water-based)
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Burke Industrial Coatings
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Steel Plus CE Clear Gloss Epoxy
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Coating thicknesses do not include the dip primer.
All coatings are currently water based.
All coatings are suitable for relative humidity of 100 %.
All coatings are suitable for surface temperatures of 300 ºF (~150 ºC).