Removing masking film from PLEXIGLAS® sheets

© Röhm GmbH – Acrylic Products / Photo: Stefan Wildhirt

For optimal protection from scratching during transport and in storage, PLEXIGLAS® sheets are normally masked on both sides with self-adhesive film . And even while processing the acrylic sheets, the film should remain in place for most treatment steps so as not to damage the material. Find out how to best remove the masking film with the following tips.

    • When removing the masking film, start at the corners
    • Gather the film into a sort of pouch
    • Remove the masking film completely

Different masking film colors and what they mean

PLEXIGLAS® sheets are protected by a film on both sides. The masking film carries the product identification and its color indicates the manufacturing process. PLEXIGLAS® XT, for example, is protected by a blue film or white film with blue printing and PLEXIGLAS® GS by a colorless or white film with green printing.

Protection during processing and transport

If possible, you should leave the masking film on the PLEXIGLAS® sheet during processing to protect the material while routing, sawing, or drilling it; only for a few processing steps, such as forming, should the film first be removed.

Instructions: Remove masking film from PLEXIGLAS®

© Röhm GmbH – Acrylic Products / Photo: Stefan Wildhirt


Start at the corners

First loosen the masking film from all the corners of the sheet.

© Röhm GmbH – Acrylic Products / Photo: Stefan Wildhirt


Gather into a pouch and strip off the film completely

Then carefully pull the masking film from the corners toward the middle of the sheet, forming a kind of pouch with the film. This has the advantage that dirt and dust remain on the film for the most part and so do not soil the material. Finally, pull the film off the sheet completely.

Tips and tricks for handling the masking film

  • If you are unsure whether there is masking film on the sheet, scratch the surface lightly with a fingernail. Light scratches will be clearly visible on the film but will not damage the sheet.
  • Take care not to damage the PLEXIGLAS® with sharp objects.
  • If the stored sheets are exposed to weathering, the film must be removed within four weeks. If not, there is a risk that the polyethylene film will become brittle or adhere more strongly to the sheet.
  • Do not leave the masking film on the PLEXIGLAS® for too long as it may become difficult to remove. The film is best removed directly after processing.
  • If the masking film does not come off the PLEXIGLAS® easily, use a blow-dryer. But take care not to overheat the PLEXIGLAS® or it may warp.


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