Green polyester masking tape is a widely used material for achieving complete anodizing stop-off.
It cuts easily, adheres quickly and removes cleanly.
It is a masking tape that easily withstands the Type 2 and Type 3 anodizing processes (for a Type 1 anodizing masking tape, see here).
One important thing to remember
For the best results, it is important to remember that anodizing changes the surface of aluminum and tapes are pressure sensitive.
So be certain to both push down on the tape after applying, and then give the tape some time (ideally 12 to 24 hours) for the adhesive to flow-out into the metal's microscopic crevices before anodizing.
Fast ship, best quality
We stock this tape and slit it to width in-house - usually shipping same-day when ordered before 12 pm Central Time. This American made tape makes a one-day trip from manufacturer to our dock, ensuring fresh, USA-quality tape that will last up to 12 months without degrading in effectiveness. When used as directed (on clean parts, in suitable baths, with pressure & time given) it will produce sharp, clean masking lines every time.
Just store on end in a cool, humidity-controlled location between 60F and 80F for best shelf life.
No added-cost for custom masking tape widths
And with Viadon, you are not limited to a handful of tape widths.
Yes, we slit tape to 1/2", 3/4", 1" and 2".
But every order is slit-to-width from master log rolls of tape material. So we can easily set our digitally-controlled slitter to cut nearly any width of tape you need - even a single roll - at NO additional charge. Just meet our $50 minimum order.
Viadon also die cuts anodizing tape disks to size, and offers custom-shapes die cutting and we have lined green polyester tape if you have your own plotter/cutter to make one-off or low quantities of custom shapes as well.