Anodizing Masking Products

Anodizing masking products can cover a variety of products, based on the types of anodizing, and the alloys of aluminum.

Anodizing caps and plugs

Green anodizing tape

Caps & Plugs

For standard caps and plugs, both a cured silicone material and EPDM rubber are appropriate and work very well. For a range of available products and more details about each, see these pages for more info:

Anodizing Caps and Plugs

Green Polyester Tape

Green polyester tape is a great all-around anodizing masking tape, easily withstanding anodizing bath temperatures and having the chemical resistance needs to go through the entire process without degrading. The silicone based adhesive adheres well to aluminum; simply apply firm pressure to the tape on a clean, dry surface. However, because anodizing is an immersion process that changes the surface of the metal, there are some techniques that will help ensure clean masking lines after anodizing has been performed. See graphic at bottom of page, or call Viadon for more information. To go to the pages for tape rolls or die cuts of this particular tape, click these links:

VGT215 Green Anodizing Tape

VGD Green Anodizing Tape Die Cut Disks

Anodizing Masking Die Cuts

Viadon's green poly is 'a cut above' many competitor's tapes, because it is American-Made. The same-day trip from manufacturer to our dock ensures fresh, USA-quality tape that will last up to 12 months without degrading in effectiveness. Just store on end in a cool, humidity-controlled location for best shelf life.

Other Masking Tape Options for Anodizing Include:

Viadon slits tape to width in-house, and die cuts anodizing masking tape disks to size, and offers custom-shapes die cutting as well.

See the video below to watch these processes in action with green polyester tape, along with how Viadon slits the tape to width, die cuts it to size, and how you can get the most out of it when applying it to parts.

Quick, informative video about Green Polyester Tape and its uses for masking during powder coating, anodizing, plating, and e-coating. Demonstrates the benefits of American-made green polyester tape.
Green Polyester Tape for Masking

Images of Green Polyester Tape in Use for Powder Coating

Metal parts masked with green polyester tape

These parts are pre-masked and are stacked, waiting to be racked and then finished. The green polyester tape masks the areas that have either more critical tolerances, requires grounding surfaces, or simply cannot have a finish in a particular area.

Green polyester tape withstands up to 400 degrees Fahrenheit for up to one hour and easily handles anodizing tank temperatures, and has excellent chemical resistance properties.

Pressure sensitive adhesive graphic

A cross-section representation of pressure sensitive adhesive (PSA) tape systems. Pressure must be applied to these tapes to increase adhesion - particularly for anodizing where the surface of the metal is altered - as the adhesive is activated with pressure and flows over time. The microscopic crevices the exists even on very smooth surfaces allow the adhesive to "grab" the surface even better after 24 hours from application.

The majority of Viadon's tape line utilize PSA's. Not all processes require a waiting period before use, but anodizing is one that benefits from masking parts, waiting at least 12 to 24 hours, then beginning the metal finishing process. Also note that the tape adhesion is enhanced when applied to clean parts.