Purple tape for masking in Type 1 chromic anodizing
3M Anodization Masking Tape 8985L is a reliable non-silicone solution for Type I (chromic acid)
anodization. Designed for performance, it is specifically resistant to chromic acid and
provides sharp lines with a rubber adhesive for easy removal. This tape can mask and de-mask
up to 5x faster* than labor-intensive liquid masking for improved productivity.
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Engineered Specifically for Resistance to Chromic Acid
3M Anodization Masking Tape 8985L has a tough polyester carrier to stand up to chromic acid
anodization baths (Type I anodization). It also features a non-silicone rubber adhesive to
minimize the risk of silicone contamination that could impact downstream processes such as
bonding or paint adhesion. This tape provides sharp masking edges, minimizing leakage and
the need for rework, and can be used with or without chemical film on a variety of aluminum
and other metal alloys.
3M Anodization Masking Tape 8985L can replace complex, messy liquid masking and the unpleasant
odors involved. The transparent tape is easy to position and can be applied in fewer steps;
it also eliminates the cure time of a liquid so that overall masking and de-masking can be
accomplished up to five times faster*. Ease of application and clean, one-piece removal
mean users could save up to 60%* on labor time and associated costs. This tape is transparent
purple with a printed backing for visibility and has a liner for easy die-cutting.
*Up to 5x faster and up to 60% reduction in labor time both based on 3M internal data.
Rolls are 72 yards long and can be cut in custom widths upon request.
Viadon slits all tapes in-house! PLEASE Contact Us
if you do not see the width of tape you need listed below.
Single roll and case quantities are available.
3M 8985L anodizing tape data sheet available in Technical Specifications tab, below.
All tapes are slit to width at time of order and cannot be returned for refund or credit.
Stock items are subject to availability, but are usually available for shipment within 24 hours.