Surface Treatments

Fastener surface coatings are various types of chemical coatings that provide several advantages. They work to increase the corrosion-resistance and also aid in decreasing the torque, which is required during the installation. Coatings such as the fluoropolymer coatings and the lubricant blends are useful in decreasing friction as well.

PTFE COATING

PTEE coatings (Polytetrafluoroethylene) are non-stick, fluoropolymer, high temp coatings. They can be used in a one-coat system, or a two-coat system along with a primer and topcoat. They have several advantages that make them go-to coatings.

Chromium coating

Chromium coating is a technique that consists of electroplating a thin layer of the chemical element onto metal, to protect against wear and corrosion.

Manganese phosphate

Manganese phosphate coatings are applied to the surface of ferrous substrates to prevent galling and to improve break-in properties.

Black-Oxidation or Blackodising

Black-Oxidation, also known as Blackodising, is a coating application that increases the corrosion resistance of the material.

ZINC NICKEL PLATING

Zinc-nickel Plating is a coating that is normally applied to protect against corrosion, as it functions as a ‘sacrificial coating’, corroding instead of the base material.

Cadmium plating

Cadmium plating is another kind of sacrificial coating, adding a layer of protection to the metal below.

Molykote coatings

In molykote coatings, a lead- and nickel-free anti-seize paste is used to reduce wear and optimize friction of the threaded fasteners.

ZINC ALUMINUM FLAKE COATING

Zinc Aluminum flake coating is a coating that is applied non-electrolytically and has excellent corrosion-resistant properties.

ZINC PHOSPHATE COATING

Zinc phosphate coating is largely used to protect steel and iron parts from rust and corrosion.

Hot–dip galvanizing

Hot-dip galvanizing (HDG) is the process of coating fasteners by immersing it in a bath of molten zinc, and provides complete coverage including sharp corners and edges.

Zinc plating

Zinc plating is an electrochemical galvanizing technique where a thin coating of zinc metal is applied to the surface of a metal object, protecting against rust and corrosion.

Electroless Nickel Plating (ENP)

Electroless Nickel Plating (ENP) is a process that deposits a nickel-alloy coating through chemical reduction, without the use of the electric current required in traditional electroplating methods.

Nickel chrome plating

Nickel chrome plating is an excellent choice where intense corrosion protection and wear resistance are required.