Surface Finish & Modification

Wytech has a variety of coating removal and surface finish modifications such as:

Electropolishing
Passivation
Grit/Media Blasting
Vibratory Tumbling
Chemical Etching / Echogenic Surfaces
Ultrasonic Cleaning
Ultrasonic Vapor Degreasing

Surface finish, also known as surface texture or surface topography, is the nature of a surface as defined by the three characteristics of lay, surface roughness, and waviness. Wytech employs a variety of manufacturing techniques to assure the surface requirements of the product ordered meet customer specifications.

  • Electrochemical and other chemical processes are used to enhance the finish and cleanliness of metal components and assemblies
  • Reduction of surface stress concentrators, blemishes, and crack propagation
  • Negligible hydrogen embrittlement, improved fatigue life, and performance
  • Processing is available for a variety of sizes and shapes

Electropolishing

Electropolishing is an electrochemical process that Wytech employs to remove material from a metallic workpiece. It is a highly effective method to polish, deburr, and radius complex medical device components.

  • Acidic chemical process capable of creating burr-free edges on complex geometries
  • Can polish to a brighten and smooth the surface
  • Creates highly polished smooth finishes for radiused edges
  • Surface finishes as low as 4 RMS
  • Tube ID: Electropolishing available for improved surface finishes ˂8 Ra
  • Meets ASTM B912 standards

Passivation

Passivation is a chemical treatment applied to the material surface that removes contaminants and assists in the formation of a chromium-oxide passive film that protects the surface from corrosion. Moreover, passivation supports the transfer of fluid and/or medication.

  • New Crest Ultrasonic Passivation Line features the latest technology and performance
  • Meets ASTM A967 standards

Grit/Media Blasting

  • Masking tolerances as low as +/- 0.01″
  • 360° coverage if required
  • Aluminum Oxide
    • Allows surface transformation, attachment for over-mold or adhesion
    • Ideal for producing a matte finish
    • Any grit size available can be used
    • Entire parts, ends, or masked discrete lengths
    • For both wire or tube applications
  • Glass Bead
    • Any grit size can be used
    • Allows uniform look for parts
    • Aesthetically pleasing; better tactile feel
  • Silicone Carbide
    • Wear resistance, chemical inertness, high thermal conductivity, abrasion resistance, and low coefficient of thermal expansion

Vibratory Tumbling

Wytech provides vibratory tumbling for our customers with end radius requirements.

  • Removes burrs formed during fabrication and improves RMS on critical surface finish requirements
  • Ideal for prototype to large volume runs

Chemical Etching/Echogenic Surfaces

  • Anti-core capabilities

Ultrasonic Cleaning

  • Proven process in the medical device industry to thoroughly remove all traces of contamination tightly adhering or embedded onto metal surfaces

Ultrasonic Vapor Degreasing

  • Removes all oils and grease present on the material surface

Tell Us About Your Product Goals

fastlane logo

The FastLane program was developed specifically to provide design engineers fast access to a wide selection of fine wire sizes and materials for urgent developmental work.

  • Stainless Steel, Nitinol, PTFE Coated & Parylene Coated Wire
  • Diameters ranging from .003" - .145", half sizes also available
  • Available in 60", 73″ and 120″ lengths
  • $200 minimum order required
  • COC included in each shipment
FastTrack Rapid Prototyping

Whether it’s a product evaluation, evaluating an alternative manufacturing process, or a situation that demands delivery in less than two weeks, FastTrack meets your needs.

  • Wire straightening and cutting
  • Wire and tube taper grinding, forming, end treating, and coating removal
  • PTFE hypotubes
  • Assembly
  • Heat treating
  • Grit blasting