---
title: How does grout or mortar joints affect long-term adhesion of wall graphics?
description: Learn how to handle grout lines when installing cast films. Shallow lines conform easily, while deep or textured joints may need the film cut to ensure proper adhesion and appearance.
---

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# How does grout or mortar joints affect long-term adhesion of wall graphics?

## Joints vary in depth and texture—premium non-PVC or cast films conform best to shallow grout lines, while deep or protruding lines may need film trimming for optimal results.

Mortar joints and/or grout greatly vary in width, depth, profile, and texture. Cast films for textured walls work best if the grout lines are less than 1/8 in. (3.2 mm) deep.

Conforming over excessive depth and texture, such as Raked, Weathered or Struck, will be more challenging and may not achieve the desired results.

![](https://help.arlon.com/hs-fs/hubfs/image-png.png?width=662&height=509&name=image-png.png)

The Best Practice for excessively deep or protruding grout lines is to completely cut out the sections of the film that will fall into these areas.

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