Traditional Surface Modifications

Surfatek provides a broad range of traditional surface modification coatings that provide the ability to coat a broad range of substrates - metals, ceramics, polymers, wovens, non-wovens and more - with many different metals, ceramics and polymers to increase performance for many, many different types of products.

Materials Available for Surface Modifications

Available Materials

  • Aluminum (AI)

  • Aluminum Nitride (AINx)

  • Copper (Cu)

  • Chromium (Cr)

  • Chromium Nitride (CrN)

  • Gold (Au)

  • Nickel (Ni)

  • Stainless Steel

  • Silver (Ag)

  • Silver Oxide (AgO)

  • Titanium (Ti)

  • Titanium Nitride (TiN)

  • Zirconium (Zr)

  • Zirconium Nitride (ZRN) (Ceramic)

Base Materials Suitable for Surface Modification

Surfatek Supplies Surfaces And Coatings To A Broad Range Of Materials.

  • Just about any type of metal or alloy surface.

  • The vast majority of ceramic surfaces

  • A broad range of polymers

Even Some Particulraly Difficult To Process Materials, Such As

  • Delrin, which was developed to have nothing stick to it.

  • PEEK, which cannot tolerate higher material application temperatures and has adhesion issues with many coatings.

Types Of Materials

Increased Surface Hardness

ZrN and TiN coatings are ideal for a wide range of applications that require increasing the overall hardness, heat resistance, oxidation resistance, and lubricity of a substrate. Typical hardness of a ZrN treated surface is 85 RC or higher.

  • The high micro-hardness provides excellent abrasion resistance, and allows a cutting edge to stay sharper for longer

  • High hardness allows for better, longer performance in high heat, high wear applications such as injection molds

  • Increase in hardness at the surface allows for a more cost effective bulk material without sacrificing performance

 

Increased Surface Lubricity

As for lubricity, the Coefficient of Friction of our coatings is significantly lower than un-coated tool substrates. This low Coefficient of Friction means that tools work with less force due to reduced resistance between the tool and the material being worked. This also means that PVD coatings can reduce the tendency of materials to adhere: this reduces friction and allows for more unrestricted movement. For example, this is what PVD coatings can do to improve the performance of a cutting tool, such as an end mill or a drill:

  • The lowered Coefficient of Friction means there is less resistance during the cut; therefore, less heat is generated – heat build-up being another major factor in cutting edge break-down

  • The lowered Coefficient of Friction will reduce machining noise and the load placed on spindle motors

  • The lack of chemical affinity between various coatings and work pieces will reduce material “pick-up,” another leading cause of cutting edge breakdown. For example, when cutting titanium with a ZrN coated end mill, the titanium has no chemical affinity towards ZrN; therefore, you will experience almost no “pick-up.”

 

EMI / RFI Shielding

Surfatek's PVD surface modification is the best solution in prevention of electro magnetic (EMI) or radio frequency (RFI) interference. With our flexible and high quality metal coating on the surface, the component has a very strong resistance to interference. With a wide variety of metals to chose from, a custom solution can be developed to fit your tolerances and cost parameters.

 

Decorative Finishes

Any product that will benefit from a beautiful finish, precision-tuned performance and superior protection from scratches and corrosion is a good candidate for a Surfatek coating. Surfatek surface modifications not only look good, but will add life to your product.

 

Base Coating on Polymers for Electroplating

The Surfatek process actually imbeds metal ions into the surface of polymers, creating a polymer/metal mixture that will not only create a conductive surface on the polymer, but will also withstand the harsh electroplating environment.

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