EMI Shielding Coatings or Compounds

It is not uncommon to find alternative processes that compete with EMI shielding compounds (such as conductive fabrics, metallic inner shields, and plastic conductive coating). Using conductive paint is the most commonly used method for applying a conductive coating to plastics. Another option that is gaining in popularity is vacuum metallization. When comparing the advantages and disadvantages of compounding and coating it is important to focus on their ability to adequately shield. A coated shield reflects, where as a compound shield primarily absorbs.

Shielding capabilities are denoted by their shielding capability in the coating industry. However, when working with absorption shielding there is little connection between the surface resistivity and the shielding capabilities. A better indicator of shielding effectiveness is volume resistivity.

Our team can help you determine the distinctions between EMI shielding compounds and conductive coatings. We will help you create parts that work for your specific application. We custom tailor:

  • Shielding permanence
  • Recyclability
  • Lead times
  • Corrosion resistance
  • Cost
  • Special handling
  • Post-mold shielding operations
  • Part design compatibility

Our team is standing by to discuss the specific needs of your design and application. Do not hesitate and give us a call today. We should be who you look to when you need EMI shielding and RFI gaskets.