Surface Finishing

FinishCorrosion ResistanceCoating ThicknessAbrasion Resistance

Powder Coating

· Corrosion resistance depends on type of material used and pre-treatment process

· Surface must be pre-treated before powder coat or part will be at risk of corrosion and adhesion issues

· Chips or incomplete coverage adds to risk of corrosion

· Can range from 70 to 150μm

· Thicker than traditional liquid paint

· Improves appearance

· Various colors and textures available

· Heat cured finish

· Material composition and pre-treatment may have enhanced abrasion resistance

· Creates a hard finish that resists abrasion well


· Good corrosion resistance

· Provides physical and chemical barrier to corrosion

· Typically 12 to 30μm but can be more

· Often used to increase surface thickness

· Thickness of application is uniform

· Good durability

· Heat cured finish

· Good longevity

Zinc Plating

· Provides physical barrier to corrosion

· Acts as a sacrificial anode to prevent corrosion

· Parts can sustain minor damage and remain corrosion resistant

· Can range from 5 to 25μm

· If use as an undercoat for other finishes, poor adhesion

· Best for detailed surfaces and not heavy-duty applications

· Very strong finish

· Highly durable to abrasion


· Provides barrier resistance to corrosion

· Creates passivation effect on surface

· Between 5 to 7.6μm

· Can be used under a painted finish

· Mid abrasion resistance

· Electrically conductive finish

· Good resistance to chemicals, organics, heat, salt


· Good corrosion resistance

· Commonly used for saltwater or marine environments

· Ranges from 0.5 to 150μm

· Hard, wear resistant finish

· Often used for parts that come in frequent contact with other material


· Good corrosion resistance through an inert, oxide layer

· The process removes free iron from the surface leaving a thin and transparent oxide film

· Does not change durability or abrasion resistance

Galvanized Dipped

· Provides barrier resistance to corrosion

· Acts as a sacrificial anode to prevent corrosion

· At more than 254μm the finish is prone to flaking

· Poor appearance

· Can adjust thickness of finish to accommodate needs

· Often used in harsh environments because of durability

· Good abrasion resistance

· Good durability and longevity

· Surface damage can result in corrosion

FinishCarbon SteelStainless steelAluminiumApplicationVisual RequirementsThicknessCorrosion resistance
Mill Finish  Internal Parts or Parts with Subsequent ProcessingLow-Visual--
Antirust Oiling Parts with Subsequent ProcessingLow-Visual-24 Hours NSS
Brushed  IndoorMed-Visual--
Anodized Indoor / OutdoorHigh-Visual--
Micro-Polishing Indoor / OutdoorHigh-Visual--
Passivation Indoor / OutdoorMed-Visual0.5 to 15μm-
Zinc Plating Indoor / OutdoorLow-Visual5 to 25μm48 to 94 Hours NSS
E-Coating  Indoor / OutdoorLow-Visual5 to 25μm96 Hours NSS
Powder Coating   Indoor / OutdoorHigh-Visual70 to 150μm480-1000 Hours
Aluminum Aluminium

Mill Finish | Aluminium

Steel Steel

Mill Finish | Steel

Stainlesssteel Stainless Steel

Mill Finish | Stainless Steel

Steel Steel

Antirust Oiling | Steel

Aluminum Aluminium

Brushed | Aluminium

Stainlesssteel Stainless Steel

Brushed | Stainless Steel

Aluminum Black Aluminum Black

Anodized | Aluminum Black

Aluminum Natural Aluminium Natural

Anodized | Aluminium Natural

Ecoating Aluminium

E-Coating | Aluminium

Blackmatte Black Matte

Powder Coating | Black Matte

Blacksandtex Black Sandtex

Powder Coating | Black Sandtex

Blackglossy Black Glossy

Powder Coating | Black Glossy

Coolgrey Cool Grey

Powder Coating | Cool Grey

Orange Orange

Powder Coating | Orange

White White

Powder Coating | White

Yelloworange Yellow Orange

Powder Coating | Yellow Orange

Zinc Zinc

Zinc | Zinc

Stainless Steel Stainless Steel

Passivation | Stainless Steel

Stainless Steel Stainless Steel

Micro-Polishing | Stainless Steel

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