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  5. 3M™ Anodization Masking Tape 8985L, Purple, 305 mm x 66 m

3M™ Anodization Masking Tape 8985L, Purple, 305 mm x 66 m

  • 3M ID 70007540373

Designed specifically for masking in chromic acid (Type I) anodization baths

Transparent purple tape for fast, easy and accurate positioning

Provides sharp masking lines and minimizes leaking to reduce the need for part rework

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Tech Data Sheet (PDF, 104KB)

Specifications

Details

Highlights
  • Designed specifically for masking in chromic acid (Type I) anodization baths
  • Transparent purple tape for fast, easy and accurate positioning
  • Provides sharp masking lines and minimizes leaking to reduce the need for part rework
  • Clean Removal in one piece post processing
  • Non-silicone formulation helps reduce post-process coating and bonding failures

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.

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 faster. Ease of application and clean, one-piece removal post processing. This tape is transparent purple with a printed backing for visibility and has a liner for easy die-cutting. Recommended Applications - Aerospace components - Precision machine components - Welded assemblies

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