50+ Colors & Finishes Available

Alumet Supply stocks more colors and finishes in channel letter coil than any of its competitors. We also carry a variety of standard channel letter coil sizes. We have the capability of producing channel letter coils with custom sizes and colors as well. Our channel letter coil colors and finishes match the colors and finishes of our sheets, sign blanks, and Compbond ACM panels.

Advantages of Using Alumet Supply’s Ultra White Channel Letter Coil

Alumet Supply’s Ultra White is on the reverse side of many channel letter coil colors. Ultra White is the perfect solution for all of your channel letter projects. Inside an LED-lit sign cabinet or channel letter, Alumet Supply’s Ultra White provides a better light balance and intensifies the illumination. It can also help reduce the number of lighting components required, and ultimately reduce costs.

Alumet Supply’s Ultra White Paint Finish

Alumet’s ultra white painted aluminum is an energy-efficient product. It minimizes the energy necessary to light a sign with LED or fluorescent lighting thereby reducing the number of components required. For example, only one row of LEDs may be required to achieve the same level of brightness in a channel letter using Alumet’s ultra white painted aluminum inside the sign cabinet instead of standard white.

channel letter coil


  • Over 50 Standard Stock Colors and Anodized Finishes
  • Custom or Corporate Identity Colors Available
  • Standard Gauges: .020-.080
  • Standard Widths: 3.5″ 4.3″ 5.3″ & 8″
  • Standard Lengths: 270′ & 500′
  • Custom Lengths and Widths Available
  • All Channel Letter Coil has Vinyl One-Side
  • Channel Letter Coils can be Individually Boxed


  • Used to fabricate the 3-dimensional letters used in many exterior and interior signs.