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Hypersonic Metallization
Polymer Coatings by Polymer Flame Spray Unit

Chrome plating

Coating with HM not only solves environmental problems and increases the thickness of plating, but also increases bonding strength (joint tensile strength) and improves wear resistance.

Chrome electroplating is used on the surface of many machine parts. The biggest problem of current chrome electroplating is the environmental destruction caused by the plating solution. Because of this problem, many countries have banned chromium plating. In addition to destroying the environment, chrome electroplating uses thin film coating, so the adhesion is weak and peeling occurs on the surface, resulting in easy wear and shortening the lifespan. HM coating is an alternative to chrome electroplating that has such problems.

Plating Thickness and Adhesion

  • Division
    Plating thickness
    Bond strength (joint tensile strength)
  • Electroplating
    50 ~ 80㎛
    Up to the desired thickness (up to 10 mm)
  • HM coating
  • Chrome electroplating damage (9-hour friction test)

  • HM coating structure (9-hour friction test)

Coating parts

  • Back pressure cylinder

  • Hydraulic cylinder

This is a part coated with HM instead of chrome electroplating.

Electromagnetic wave blocking coating

Metallic coating can be successfully applied to plastic products, so electromagnetic shielding coating is possible. The existing vacuum spray method has limitations on the size of polymer products that can be coated, and the coating thickness is only available up to 10-30㎛. However, in order to block low-frequency electromagnetic waves, the coating thickness should be 0.5mm (500㎛) or more. HM has solved the problem of limiting the size of the coating object and coating thickness, which are the limitations of vacuum spray.

plastic/ceramic productsmetal coating

  • Zinc and aluminum composite coating on plastic

  • Metal coating on tile

Zinc and polyamidealuminum coating

  • Zinc + aluminum coating on polyamide

  • Aluminum coating on polyamide - microstructure

Joint Strength Comparison Table

  • Division
    Hypersonic metallization
    Arc Spray
    Metal Plating
  • Joint strength(MPa)

Coating the polymer with metal

With copper (Cu) coating fight bacteria

Since silver (Ag) has an antibacterial effect, some parts are plated with silver. However, silver has the downside of being too expensive. It is a known fact that copper (Cu), like silver, has antibacterial properties. Copper is less expensive than silver and has excellent bacteria-repelling properties, as shown in the graph below.

Advantages of copper coating

  • Cut down the money

    It is less expensive and less burdensome.

  • High productivity

    Coating capacity up to 14 kg per hour

  • Coatings on Almost Any Object

    It can be coated on most objects such as metal, polymer, concrete, and wood.

Copper coating(application example)

Artificial hip bone coating

The most commonly used material for prosthetic implants is the titanium-niobium (Ti-Nb) alloy. In order for this material to adhere well to bone, it is a spongy tissue similar to bone. To do so, pores must exist and the surface must maintain microscopic roughness. These conditions can be satisfied by coating the similar alloy 'titan-nibium' on stainless steel with the HM method, and it can be used as an artificial implant.

  • Sample coated with 'Titanium-Niobium', a bone-like alloy