Copper can be applied in a variety of finishes from matte to shiny. It has good corrosion resistance when used as undercoat. A number of copper processes are available, each designed for a specific purpose:
- Brightness, to eliminate the need for buffing
- High speed for electroforming
- Fine grain for masking to prevent case hardening
Tin plating is both soft and very ductile. The color of matte tin is gray-white and bright tin has a very high luster in fused condition and is silver in appearance. Corrosion resistance is fair, with coated items meeting 24 hour 5% salt spray requirement; solderability is excellent. Tin is not good for low temperature applications because it changes structure and loses adhesion when exposed to temperatures below -40C.
A bright finish can be provided on tin by specifying Bright Tin plate. The deposit shows excellent corrosion resistance and solderability. A matte finish is preferred on electronic components because of the phenomenon of wiskering, which can lead to the short-circuiting of electrical components.
Chrome plating provides excellent hardness (HRc68-74) and wear resistance. Chrome plating has a low coefficient of friction, and is resistant to heat and chemicals.
Nickel plating is a versatile process that satisfies a wide range of needs. Depending on the process and conditions, nickel can be deposited as a soft or hard finish, ranging from 150-500 Vickers. The color ranges from a bright finish similar to stainless steel in color, to a dull grey or light grey (almost white) color. Corrosion resistance is a function of thickness. Nickel also has a low coefficient of thermal expansion and is magnetic. All steel parts having a hardness of Rc-40 or greater require a post bake 375 25F for 3 hours.
Zinc plating is a widely used coating for the corrosion protection of steel. It is used on stampings, fasteners, and automotive components, providing an excellent base for painting. Zinc is usually provided in a chromated condition, which ranges from blue bright, clear to yellow iridescent, to black. Corrosion resistance is good with the yellow chromates reaching 96 hours neutral salt spray to white corrosion. The new generation of clear, trivalent chromates perform equally as well. Older formulations of clear chromates can be expected to reach 12 hours of salt spray resistance before white corrosion. Red rust remains a function of thickness.
High strength steel (tensile strength greater than 1700 MPa) shall not be electroplated. Stress relief: Steel parts with ultimate tensile strength 1000 MPa and above that have been machined, ground, cold formed, or cold straightened, can be stress relieved at a minimum of 375F for three hours or more before cleaning and plating.
Zinc nickel is an alloy plate consisting of electrodeposited zinc and nickel. When a chromate conversion coating is applied, this finish offers some of the best corrosion resistance available, in excess of 1000 hours salt spray when tested per ASTM B117. The finish is functional and not for aesthetics as the alloy lends itself to a vast array of colors after chromating from light pale yellow to dark purples. The finish offers a good base for painting or other coatings and it was originally developed as a replacement for cadmium plating.
Silver plating offers several advantages as a finish. It is one of the best electrical conductors and is easily soldered, although that capability of silver plating decreases with age. Silver plating also has excellent lubricity and smear characteristics for anti-galling fuses on static seals, bushings, etc. The color ranges of silver plating from white matte to very bright in appearance, but it will tarnish easily. Silver plating offers good corrosion resistance, depending on the base metal. Hardness varies from about 90 Brinnell to about 135 Brinnell, based on the process and plating conditions.
Zinc flake
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
Grade A (2-layer coating)
> 5 – 8 µm
Grade B (3-layer coating)
> 8 – 12 µm
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance acc. to ISO 9227 NSS:
Depending on layer structure, geometry and application technology, up to 1000h without FeK
Temperature resistance / baking temperature
Up to 250°C / approx. 300°C
Color
Silver
Properties
- High corrosion protection
- No hydrogen embrittlement
- Resistance against UV radiation, fuels, oils, organic solvents, biodiesel, coolant, brake fluid
- Electrical conductivity
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
Grade A (2-layer coating)
> 5 – 8 µm
Grade B (3-layer coating)
> 8 – 12 µm
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance acc. to ISO 9227 NSS:
Depending on layer structure, geometry and application technology, up to 1000h without FeK
Temperature resistance / baking temperature
Up to 250°C / approx. 300°C
Color
Silver
Properties
- High corrosion protection
- No hydrogen embrittlement
- Resistance against UV radiation, fuels, oils, organic solvents, biodiesel, coolant, brake fluid
- Electrical conductivity
- Pre-integrated PTFE lubricant
- Geomet 321® + Plus® ML black
- Geomet 500® + Plus® M black
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
- Geomet 321/500® (2-layer coating) + Plus® ML, M black (2-layer coating)
- 10 ¨C 15 ¦Ìm
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance acc. to ISO 9227 NSS:
- > 800h without FeK
- > 240h without ZNK
Temperature resistance / baking temperature
Up to 250°C / approx. 300°C
Color
Black
Properties
- High corrosion protection
- No hydrogen embrittlement
- System coating (Geomet 321® + Plus® ML, M black)
- Resistant against contact corrosion
- Resistant against automotive fluids/li>
- Plus® VL
- Plus® VLh
- Plus® L
- Plus® ML
- Plus® ML (EU)
- Plus® ML (US)
- Plus® M
- Plus® XL
- Plus® 10
- Plus® ML black
- Plus® M black
Coefficients of friction with threaded parts acc. to test method EN ISO 16047
- Plus® VL > 0.09 ¨C 0.14 ¦Ìtot
- Plus® VLh > 0.09 ¨C 0.14 ¦Ìtot
- Plus® L > 0.08 ¨C 0.14 ¦Ìtot
- Plus® ML > 0.10 ¨C 0.16 ¦Ìtot
- Plus® ML (EU) > 0.10 ¨C 0.16 ¦Ìtot
- Plus® ML (US) > 0.10 ¨C 0.16 ¦Ìtot
- Plus® M > 0.12 ¨C 0.18 ¦Ìtot
- Plus® XL > 0.06 ¨C 0.09 ¦Ìtot
- Plus® 10 > without PTFE, no defined friction coefficient window
- Plus® ML black > 0.10 ¨C 0.16 ¦Ìtot
- Plus® M black > 0.12 ¨C 0.18 ¦Ìtot
(Specified friction coefficient window with reservation!! Exact friction coefficient determined on the respective product).
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance acc. to ISO 9227 NSS:
- The corrosion protection mechanism of Dacromet® and Geomet® is further improved with a topcoat of PLUS®.
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
- Plus® VL, VLh, L, ML, M, XL, 10> 1 ¨C 3 ¦Ìm
- Plus® ML, ML (EU), ML (US), M black> 2 ¨C 5 ¦Ìm
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
Per layer approx. 2 ¨C 4 um
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance
- Guarantees cathodic corrosion protection as required in DIN EN ISO 10683
- Complies with salt spray test DIN EN ISO 9227 as required in DIN EN 13858
- Complies with salt spray test DIN EN ISO 9227 as required in DIN EN ISO 10683
- Complies with salt spray test DIN EN ISO 9227 as required in DIN EN ISO 2944-6
- Complies with constant climate test acc. to DIN EN ISO 6270-2 (CH)
- Complies with the cyclical corrosion test acc. to VW PV 1200
- Complies with the accelerated corrosion test (ACT Test) acc. to Volvo STD 423-0014
- Complies with the accelerated corrosion test (ACT II Test) acc. to VCS 1027,1449
- Delays contact corrosion
Media resistance
- Complies with chemical resistance requirements against operating materials acc. to DIN EN ISO 2812
Temperature resistance
- Maintains corrosion protection after medium thermal stress (up to 400¡ãC) over a longer period of time.
Temperature resistance
- Maintains corrosion protection after medium thermal stress (up to 400¡ãC) over a longer period of time.
Color
- Silver
Properties
- Inorganic
- Solvent-based
- Increased protection against red and white corrosion
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
Per layer approx. 2-4 um
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance acc. to ISO 9227 NSS:
- Depending on layer structure, geometry and application technology, up to 1000h without FeK
Temperature resistance / baking temperature
- Up to 180¡ãC / approx. 200¡ãC
Color
- Silver
Properties
- High corrosion protection
- No hydrogen embrittlement
- Electrical conductivity
- Delta® Seal silver
- Delta® Seal silver GZ
- Delta® Seal black
- Delta® Seal black GZ
- Delta® green and other variants on request
Coefficients of friction with threaded parts acc. to test method EN ISO 16047
- Delta® Seal silver> without lubricant additive, no defined friction coefficient window
- Delta® Seal silver GZ> 0.09-0.14 utot
- Delta® Seal black > without lubricant additive, no defined friction coefficient window
- Delta® Seal black GZ> 0.09-0.14 utot
(Specified friction coefficient window with reservation!! Exact friction coefficient determined on the respective product).
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance acc. to ISO 9227 NSS:
- The corrosion protection mechanism of Delta® Protekt and Delta® Tone is further improved with a topcoat of Delta® Seal.
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
- Per layer approx. 2-4 um
- Multiple layers possible
- With black surfaces, a 2-layer coating (topcoat) is needed at a minimum
Together with oiling, phosphating serves as a temporary protection against corrosion
- Delta Protekt® – VH 300
- Delta Protekt® – VH 301 GZ
- Delta Protekt® – VH 302 GZ
- Delta Protekt® – VH 321 GZ (black)
Coefficients of friction with threaded parts acc. to test method EN ISO 16047
- Delta Protekt® - VH 300> without lubricant additive, no defined friction coefficient window
- Delta Protekt® - VH 301 GZ> 0.09 - 0.14 utot
- Delta Protekt® - VH 302 GZ> 0.10 - 0.18 utot
- Delta Protekt® - VH 321 GZ (black)> 0.08 - 0.16 utot
(Specified friction coefficient window with reservation!! Exact friction coefficient determined on the respective product).
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance acc. to ISO 9227 NSS:
- The corrosion protection mechanism of Delta® Protekt and Delta® Tone is further improved with a topcoat of Delta Protekt® - VH …
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
- Per layer approx. 2-4 um
- Multiple layers possible
Magni Flake B46
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
- Per layer approx. 2 - 4 um
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance acc. to ISO 9227 NSS:
- Depending on layer structure, geometry and application technology, up to 1000h without FeK
Temperature resistance / baking temperature
- Up to 180°C / approx. 200°C
Color
- Silver-gray
Properties
- Coating compatible with aluminum
- No hydrogen embrittlement
- Electrical conductivity
- Resistant against: acidic/alkaline/organic fluids, e.g., antifreeze, brake fluid and fuels
- Magni Top B18 (Magni 565)
- Magni Top B28N
- Magni Top E10A
- Coefficients of friction with threaded parts acc. to test method EN ISO 16047
Coefficients of friction with threaded parts acc. to test method EN ISO 16047
- Delta® Seal silver> without lubricant additive, no defined friction coefficient window
- Delta® Seal silver GZ> 0.09-0.14 utot
- Delta® Seal black > without lubricant additive, no defined friction coefficient window
- Delta® Seal black GZ> 0.09-0.14 utot
Coefficients of friction adjustable according to requirements
Chromium-VI-free
Pb-free
Cd-free
RoHS-compliant
Corrosion resistance acc. to ISO 9227 NSS:
- The corrosion protection mechanism of Magni Flake B46 is further improved with a topcoat of Magni Top ¡
Layer thickness information refers to average values acc. to DIN EN ISO 4042 and DIN EN ISO 10683.
- Per layer approx. 2-4 um
- Multiple layers possible
