ALUMINUM
BRASS / COPPER
STAINLESS STEEL
STEEL / STEEL ALLOYS
ALUMINUM
Anodize
Anodize finishes are intended to provide corrosion protection and abrasion resistance for aluminum and aluminum alloys (Clear, Black). ASTM B 580
Chem. Film (Iridite)
Chem. Film or Iridite is primarily used for mild corrosion protection with low electrical resistance and also improves paint adhesion on aluminum and aluminum alloys. ASTM B 449
Black Polyurethane E-Coat
Black Polyurethane E-Coat is applied with an electrical current in an immersion process that results in a very uniform coating, even on complex parts. The thickness (0.2 to 1.0 mil) is lower than liquid paints or powder coat, making it an ideal finish for parts with close tolerances and threaded parts. Corrosion resistance is good, chip resistance is excellent, and the black finish is quite decorative.
Electroless Nickel
Electroless nickel is a hard coating that provides corrosion protection, wear resistance, electrical conductivity, and consistent thickness. ASTM B 733
Electroless Nickel/Tin
Electroless nickel/Tin is a bright tin-plating over a nickel coating that provides corrosion protection, electrical conductivity. Excellent for electronics where solder-ability and RF control are needed.
Electrolytic Nickel/Tin
Electrolytic Nickel/Tin provides corrosion protection and electrical conductivity. Excellent for electronic fasteners and contacts where solder-ability is required.
Magni 550 (Dip spin)
Magni 550 combines an electroplated zinc and chromate underlayer with an aluminum-rich epoxy topcoat. The zinc layer provides sacrificial protection of the substrate and the topcoat creates a highly corrosion resistant barrier. Salt spray protection over 1000 hours is normal, with up to 3000 hours measured on some parts. A friction modifier provides low torque for fastener applications. The color is flat silver/gray. The cost is about twice that of zinc.
Special Etch
Special etch is a chemical etching process that cleans and brightens most aluminum parts.
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BRASS / COPPER
Electroless Nickel
Electroless nickel is a hard coating that provides corrosion protection; wear resistance, electrical conductivity, and consistent thickness. ASTM B 733
Electroless Nickel/Tin
Electroless Nickel/Tin is a bright tin-plating over a nickel coating that provides corrosion protection, electrical conductivity. Excellent for electronics where solder-ability is needed.
Electrolytic Nickel
Electrolytic nickel is a hard coating that provides corrosion protection; wear resistance, electrical conductivity, and bright finish. ASTM B 689
Electrolytic Nickel/Tin
Electrolytic Nickel/Tin provides corrosion protection and electrical conductivity. Excellent for electronic fasteners and contacts where solder-ability is required.
Electrodeposited Tin
Electrodeposited Tin provides corrosion protection and electrical conductivity. Excellent for electronic fasteners and contacts where solder-ability is required. ASTM B 545
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STAINLESS STEEL
Passivate
Passivate is a process that removes iron and foreign metals from the surface of stainless steel to help prevent oxidation and rust from forming on the surface.
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STEEL & STEEL ALLOYS
Clean and Oil
Clean and oil is used to clean mill scale and dirt from steel parts and is followed by a dry to touch oil to protect from corrosion.
Black Polyurethane E-Coat
Black Polyurethane E-Coat is applied with an electrical current in an immersion process that results in a very uniform coating, even on complex parts. The thickness (0.2 to 1.0 mil) is lower than liquid paints or powder coat, making it an ideal finish for parts with close tolerances and threaded parts. Corrosion resistance is good, chip resistance is excellent, and the black finish is quite decorative.
Electroless Nickel
Electroless nickel is a hard coating that provides corrosion protection, wear resistance, and consistent thickness. ASTM B 733
Electrolytic Nickel
Electrolytic nickel is a hard coating that provides corrosion protection; wear resistance, and bright finish. ASTM B 689
Electrodeposited Tin
Electrodeposited Tin provides corrosion protection and electrical conductivity. Excellent for electronic fasteners and contacts where solder-ability is required. ASTM B 545
Magni 550(Dip spin)
Magni 550 combines an electroplated zinc and chromate underlayer with an aluminum-rich epoxy topcoat. The zinc layer provides sacrificial protection of the substrate and the topcoat creates a highly corrosion resistant barrier. Salt spray protection over 1000 hours is normal, with up to 3000 hours measured on some parts. A friction modifier provides low torque for fastener applications. The color is flat silver/gray. The cost is about twice that of zinc.
Zinc Plate
Zinc plating is a widely used coating that provides sacrificial corrosion protection for steel parts. This coating is applied using either barrel or rack methods (Clear, yellow, black, or olive drab). ASTM B 633
Zinc Cobalt Plus
Zinc cobalt plus is zinc plating that incorporates small amounts of cobalt metals into the plating. A clear hex free chromate is applied which is then sealed. This provides excellent corrosion protection. This is a barrel plating process and is available in “clear” or “bright” only. Meets European ELV standards. ASTM B 840
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ASTM B-449 SPECIFICATIONSFOR CHROMATES ON ALUMINUM
CLASS
COLOR
Class 1
Yellow to Brown
Class 2
Colorless to Yellow
Class 3
Colorless
Class 4
Light Green to Green (NOT AVAILABLE)
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ASTM B-545 SPECIFICATIONSFOR ELECTRODEPOSITED TIN(For use on aluminum, copper, brass, steel substrates)
CLASS
SERVICE CONDITIONS
MIN. THICKNESS
Class A
Mild
.0001
Class B
Mild
.0002
Class C
Moderate
.0003
Class D
Severe
.0005
Class E
Very Severe
.0012 (NOT AVAILABLE)
Class F
Similar to Class A
.00005
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ASTM B-580 SPECIFICATIONSFOR ANODIZING OF ALUMINUM
TYPE
CLASS
MIN. THICKNESS
Type B
Architectural Class 1
.0007
Type C
Architectural Class 2
.0004
Type D
Automotive Exterior
.0003
Type E
Interior Moderate Abrasion
.0002
Type F
Interior Limited Abrasion
.0001
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ASTM B-633 SPECIFICATIONSFOR ZINC PLATING(For use on brass, copper, steel substrates)
TYPE
CLASS
COLOR
MIN. THICKNESS
Type III
Fe/Zn 5 SC 1
Clear/Colorless Chromate
.00019
Type II
Fe/Zn 5 SC 1
Colored Chromate
(Yellow, Black, Olive Drab)
.00019
Type III
Fe/Zn 8 SC 2
Clear/Colorless Chromate
.00031
Type II
Fe/Zn 8 SC 2
Colored Chromate
(Yellow, Black, Olive Drab)
.00031
Rack Plate Only
Type III
Fe/Zn 12 SC 3
Clear/Colorless Chromate
.00047
Type II
Fe/Zn 12 SC 3
Colored Chromate
(Yellow, Black, Olive Drab)
.00047
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ASTM B-689 SPECIFICATIONS FOR ELECTROLYTIC NICKEL (BARREL)(For use on aluminum, brass, copper, and steel substrates)
TYPE
CLASS
MIN. THICKNESS
Type 2
Class 5
.00019
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ASTM B-733 SPECIFICATIONS FOR ELECTROLESS NICKEL(All Type 4 Mid Phos 4-9%; for aluminum, brass, copper & steel substrates)
CLASS
SERVICE
MIN. THICKNESS
Class 1 & 3 SC-0
Minimum
.00004
Class 1 & 3 SC-1
Light
.0002
Class 1 & 3 SC-2
Mild
.0005
Class 1 & 3 SC-3
Moderate
.001
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ASTM B-840 SPECIFICATIONS FOR ZINC-COBALT PLATING(For use on brass, copper, steel substrates)
CLASS
TYPE
GRADE
COLOR
MIN. THICKNESS
Class 1
Type A
Grade 6
Clear/Colorless Chromate
.00023
Class 1
Type B
Grade 6
Yellow Chromate
.00023
Class 1
Type D
Grade 6
Black Chromate
.00023
Rack Only
Class 1
Type A
Grade 12
Clear/Colorless Chromate
.00047
Class 1
Type B
Grade 12
Yellow Chromate
.00047
Class 1
Type D
Grade 12
Black Chromate
.00047
Class 1
Type A
Grade 18
Clear/Colorless Chromate
.0007
Class 1
Type B
Grade 18
Yellow Chromate
.0007
Class 1
Type D
Grade 18
Black Chromate
.0007
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