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What’s the reason for considering PSA-backed film? The main factor is how the assembly manufacturer secures the lapping film to the polishing pad or plate. The goal is to avoid slippage and ensure the film is not slipping on the pad or plate instead of polishing the connector’s tip.

The bottom layer of lapping film usually is a mylar substrate. The PSA-backed film has adhesive on the backside of the mylar. It is supplied with a paper backing that the user peels off to expose the adhesive layer. This is pressed onto the polishing plate to attach the film securely, preventing slippage. Adhesive backing is the only physical difference between PSA and non-PSA film.

Consider our Quality PSA-backed film. The main reasons are how the assembly manufacturer secures the lapping film to the polishing pad or plate. The goal is to avoid slippage and ensure the film is not slipping on the pad or plate instead of polishing the connector’s tip.

Generally, PSA-backed film is most useful with polishing processes that use a glass plate, and non-PSA film can be used effectively with processes that use a rubber polishing pad. Typically, glass plates are used for flat tips, such as MT/MPO type connectors, and rubber is used to get a rounded or radiused tip. Thus, most processes for making multi-fiber assemblies (MT/MPO types) use PSA-backed film. For single-fiber polishing (cylindrical ferrules), the non-PSA-backed film is the most common.

We offer a polishing film that is cost-effective and works.  Create a FREE CHAT and/or set up a FREE CALL to discuss your application.  All of our support TEAM has been working with polishing, film, and/or interferometry since the ’90s.  *We provide FREE evaluation sample Film when available for Polishing Process evaluation and confirmation. 

Available in discs, sheets, and rolls, with or without pressure-sensitive adhesive (PSA).

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