Left Edge

Standard Finish Summary

The following summary is brief description Lyn-Tron's standard finish summary. The document is organized with the Lyn-Tron's Plate Code proceeded by the standard Lyn-Tron plating name and a brief explanation of the finish. The Lyn-Tron Plate Code is represented as numeric/alphanumeric value and is between two and three characters long. The plate code will always be listed at the end of the Lyn-Tron part number.

Please click on the finish name link below to review the suggested material that the selected finish can be applied to.

Anodize

  • Acid Electrolyte treatment which penetrates the metal and builds up
  • Rough-etched appearance, hard oxide surface
  • Applied on aluminum
  • Excellent corrosion and abrasion resistance
  • Non-conductive

    • Lyn-Tron Plate Codes

      • 08 - Clear Chromic Acid Anodize
      • 09 - Red Anodize
      • 10 - True Green Anodize
      • 11 - Dark Grey Anodize -- Type 1
        • Chromic 0.5µ-7.6µ
      • 111 - Dark Grey Anodize -- Type 2
        • Sulfuric 1.8µ-25.4µ
      • 12 - Clear Anodize
      • 121 - Hard Clear Anodize -- Type 3 - Class 1
        • MIL-A-8625
      • 14 - Black Anodize -- Type 2
      • 141 - Hard Black Anodize -- Type 3
      • 15 - Clear Semi-Frost Anodize
      • 16 - Black Semi-Frost Anodize
      • 17 - Clear Satin Anodize
      • 18 - Black Satin Anodize
      • 19 - Black Bright Anodize
      • 20 - Clear Bright Anodize

Bright Dip

  • An Acid bath etching process
  • Used on brass parts
  • Process removes any metal particulate that may be on the part

    • Lyn-Tron Plate Codes

      • 03 - Bright Dip

Cadmium

  • Cadmium can be electroplated on most metals
  • It is commonly used on brass and steel
  • Appearance is typically bright
  • Lyn-Tron offers a type II with a supplementary chromate treatment
  • Cadmium offers excellent corrosion protection
  • It offers excellent protection in marine environments
  • Should not be exposed to continuous temperatures of over 150 degrees F.
  • Non magnetic and cannot be soldered
  • This plating has been used as a suitable alternative to E-nickel or zinc plating

    • Lyn-Tron Plate Codes

      • 31 - Clear Cadmium
        • QQ-P-416 Type 1 Class 2
      • 311 - Clear Cadmium -- Type 2 -- Class 3
        • QQ-P-416 Type 2 Class 3
      • 31H - Clear Cadmium Heat Treated
      • 32 - Yellow Cadmium
        • QQ-P-416 Type 2 Class 2
      • 32H - Yellow Cadmium Heat Treated

Caustic Etched

  • An acid bath process primarily used on aluminum
  • Typically finished with an Anodized plate

    • Lyn-Tron Plate Codes

      • 02 - Caustic Etch

Chemical Film

  • This process is used on RoHS aluminum
  • Parts are dipped in a chemical
  • Process makes no dimension changes in the part
  • It offers good corrosion resistance and is electrically conductive
  • Abrasion resistance is poor with this finish
  • Common brand names are Iridite and Alodine.
  • Lyn-Tron uses 14-2 Iridite. This finish is gold unless otherwise requested.

    • Lyn-Tron Plate Codes

      • 21 - Clear Iridite Class 3
      • 211 - Clear Iridite Class 1A
      • 22 - Gold Iridite Class 1A
      • 221 - Gold Iridite Class 3
      • 222 - Gold Iridite - Honeywell Approved
        • MIL-C-5541 CLASS 1A, Rev: E
      • 223 - Gold Iridite - Honeywell Approved
        • M690278-2, Class 3
      • 24 - Blue Iridite
      • 25 - Clear Iridite Class 3 (RoHS)
      • 25H - Clear Iridite Class 3 (RoHS) with Heat Treat
      • 25P - Clear Iridite Class 3 (RoHS) with Nylock Patch
      • 26 - Gold Iridite Class 1A (RoHS)

Chrome

  • Chrom is a technique of electroplating a thin layer of chromium onto a metal object
  • The chromed layer can be decorative, provide corrosion resistance, ease cleaning procedures, or increase surface hardness

    • Lyn-Tron Plate Codes

      • 71 - Chrome -- Bright
      • 72 - Chrome -- Satin
      • 73 - Chrome/Electroless Nickel

Copper / Nickel / Bright Tin

  • Copper plating is primary used as an undercoat to improve adhesion and to prevent impurities forming on the base metal and migrating through.
  • Can affect solderability.
  • Can be done to most metals
  • Offers only fair resistance to corrosion

    • Lyn-Tron Plate Codes

      • 48 - Copper/Nickel/Bright Tin
      • 48H - Copper/Nickel/Bright Tin + Heat Treated

Electro Tin

  • Electroplated tin provides very good resistance to corrosion.
  • When applied to a proper thickness this finish meets a 24 hour 20% salt spray requirement.
  • Can be soldered
  • Is ductile
  • Available either bright or dull finishes
  • Bright tin looks cosmetically better then dull tin and has better corrosion resistance. When exposed to low temperatures (-40° F) this finish changes structure and loses adhesion.
  • The expected shelf life of Electro Tin is approximately six months from the date plated. To ensure maximum shelf life -- parts should be sealed in an airtight container with desiccant.

    • Lyn-Tron Plate Codes

      • 42 - Electro Tin -- Dull
      • 42H - Electro Tin -- Dull Heat Treated
      • 43 - Electro Tin -- Bright
      • 43H - Electro Tin -- Bright + Heat Treat
      • 44 - Electro Tin -- Solder
      • 44H - Electro Tin -- Solder -- Heat Treat
      • 4A - Electro Tin -- Bright .0002-.0004 Tin .00002 CU

Finishing Process

  • The finished product of finishing process

    • Lyn-Tron Plate Codes

      • 00 - Unplated
      • 00H - Heat Treat - Unplated
      • 00M - Unplated -MCM
      • 00P - Nylock Patch - Unplated
      • 00Q - Nylock Pellet - Unplated
      • 00S - Marking Stamp - Unplated
      • 74 - Brushed Aluminum
      • 89 - Electropolish
      • 99 - Rust Inhibitor
      • 99T - Rust Inhibitor + Carburize .005-.010 to HRC 35-42

Gold

  • Gold plating is a method of depositing a thin layer of gold onto the surface of another metal, most often copper or silver, by chemical or electrochemical means
  • Mechanical or chemical affixing of thin gold foils onto the surface of objects is instead known as gilding

    • Lyn-Tron Plate Codes

      • 94 - Gold (.00005/.00007)
        • MIL-G-45204, CL 1, Type II
      • 96 - Gold (.00005 - .0000315) / Nickel Flash
      • 97 - Gold (.00003 Min)
        • MIL-G-45204, Type II
      • 98 - Hard Gold / Nickel / Copper Strike

Nickel

  • Nickel provides a silver finish and can be plated on most metals
  • Offers very good resistance to corrosion
  • Can deposited in either a soft or hard finish (dull or bright)
  • Corrosion resistance is a function of plate thickness
  • Some forms of this finish may be slightly magnetic.

    • Lyn-Tron Plate Codes

      • 61 - Nickel
      • 61P - Nickel w/ Patch
      • 62 - Black Nickel
      • 63 - Ductile Nickel
      • 634 - Sulfamate Nickel ASM B 687-97 Type II Class 10
      • 63H - Ductile Nickel + Heat Treat
      • 63P - Ductile Nickel with Nylock Patch
      • 64 - Nickel without Copper Under Plating
      • 66 - Electroless Nickel
      • 661 - Nickel - Molex
      • 66P - Electroless Nickel with Nylock Patch
      • 81 - Black Chrome/Chromium/Nickel

Nylon Dye

  • A dye can generally be described as a colored substance that has an affinity to the substrate to which it is being applied
  • The dye is generally applied in an aqueous solution, and may require a mordant to improve the fastness of the dye on the fiber

    • Lyn-Tron Plate Codes

      • 83 - Black Dye
      • 84 - Blue Dye
      • 85 - Red Dye
      • 86 - Green Dye

Oxide

  • Finish is mostly decorative
  • Has limited corrosion protection in mild conditions
  • Dimensional changes are immeasurable.

    • Lyn-Tron Plate Codes

      • 50 - Black Oxide -- Steel
      • 50P - Black Oxide -- Steel with Nylock Patch
      • 51 - Black Oxide -- Brass
      • 52 - Black Oxide -- Stainless Steel
      • 521 - Black Oxide after Passivate -- Stainless Steel
      • 522 - Black Oxide after Passivate with Heat Treat -- SS
      • 52W - Black Oxide - Wax Coating -- Stainless Steel

Passivate

  • Chemical treatment used on Stainless Steel
  • Process makes no dimension changes in the part
  • Treatment removes iron particles and creates an etched passive surface. (Nitric acid -- dissolve's iron)
  • Process purifies the surface and improves corrosions resistance.

    • Lyn-Tron Plate Codes

      • 01 - Passivate
      • 011 - Passivate (Nitric)
      • 01E - Passivate with Electro Polish
      • 01H - Passivate + Heat Treat
      • 01M - Passivate - MCM
      • 01P - Passivate with Nylock Patch
      • 01Q - Passivate with Nylock Pellet
      • 01S - Passivate with Marking Stamp
      • 06 - Passivate -- Type 2

Silver

  • This is an expensive finish
  • Provides excellent electrical conductivity
  • Soft and solderable.

    • Lyn-Tron Plate Codes

      • 91 - Silver
      • 92 - Silver/Nickel
        • ASTM B700 QQ-S-365

Solder

  • Soldered finish offers the best solderability
  • Can be fused
  • Non-magnetic
  • 60% tin, 40% lead
  • Should not be used on parts of irregular configuration or those with deep recesses.
  • The expected shelf life of Solder is approximately six months from the date plated. To ensure maximum shelf life -- parts should be sealed in an airtight container with desiccant.

    • Lyn-Tron Plate Codes

Zinc

  • Corrosion resistant
  • Conductive
  • Inexpensive
  • Can be applied in a wide range of thickness
  • In time this finish will weather and turn to a drab gray color

    • Lyn-Tron Plate Codes

      • 33 - Black Zinc
      • 34 - Zinc Clear Chromate
        • QQ-Z-325 Type 2 Class 3 -- ASTM B 633 Type 3 SC 1
      • 342 - Zinc Clear Chromate
        • QQ-Z-325 Type 3 Class 2
      • 343 - Zinc Clear ASTM B 633 Type3 SC3 (72hr salt)
        • ASTM B 633 Type 3 SC3 (72hr salt)
      • 345 - Zinc Clear ASTM B 633 Type3 SC2 (bake after plate)
        • ASTM B 633 Type 3 SC2 (.0003 min.)
      • 347 - Zinc Clear ASTM B 633 Type3 SC2 (96hr salt)
        • ASTM B 633 Type 3 SC2 (96hr salt)
      • 34H - Zinc Clear Heat Treated
      • 34P - Zinc Clear Nylock Patch
      • 35 - Zinc Clear -- No Chromate
      • 35P - Zinc Clear with Nylock Patch
      • 36 - Zinc Yellow Chromate
      • 363 - Zinc Yellow Chromate ASTM B633 Type 2 SC3 (0.0005)
      • 36H - Zinc Yellow Heat Treat
      • 36P - Zinc Yellow Nylock Patch
      • 37 - Zinc Yellow (RoHS)
      • 37P - Zinc Yellow (RoHS) Nylock Patch
      • 38 - Black Zinc (RoHS)
      • 53 - Black Zinc/Copper
      • 53P - Black Zinc/Copper Strike Nylock Patch
      • 54 - Black Zinc/Copper Strike (RoHS)
      • 55 - Nickel/Copper Strike( .0001) - Steel
      • 56 - Black Zinc/Nickel Strike
      • 80 - Zinc Yellow Leach Back Bronze
Right Edge