KOBERT-IN decorative wall panels: complete installation guide and best practices
Transporting, cutting, bonding, installing, and grouting: installing KOBERT-IN decorative wall panels requires method and precision to ensure a durable and attractive result. This SANIZÉO guide covers all the best practices to follow for successful installation in both renovation and new-build projects.
Indoor installation only.
Dry, flat, clean, and stable wall.
Silicone with a 3 mm expansion gap.
Rigid installation or insufficiently prepared wall.
Before installation: conditions to meet
Before starting the installation, it is essential to check that the environment and substrate are suitable. Installation carried out under unsuitable conditions may compromise the panels' long-term stability.
- Indoor use only: KOBERT-IN panels are not designed for outdoor use.
- Compatible substrate: check that the wall is compatible with the manufacturer's technical recommendations.
- Clear workspace: allow sufficient space to handle the panels correctly.
- Stable ambient temperature: avoid rooms that are too cold, humid, or exposed to significant fluctuations.
Key points
Proper site preparation directly affects the final installation quality and the panels' durability.
Transporting and handling panels
KOBERT-IN panels are robust, but remain sensitive to improper handling before installation. Certain stresses may cause invisible tension that becomes apparent after installation.
- Transport vertically: always use protective gloves to reduce the risk of slipping.
- Never place on the corners: use soft wooden, foam, or rubber spacers.
- Check the panels: check their condition before cutting or installation.
- Avoid stress: do not leave panels bent or leaning without suitable support.
Common mistake
A panel that has been stored or handled incorrectly may retain slight stress that becomes visible after bonding.
Essential tools for a clean installation
A clean cut and precise installation require suitable tools. Poor tooling remains one of the main causes of uneven finishes.
Cutting
Circular saw with a cutting guide and a suitable aluminum blade for a regular cut and reduced chipping.
Adhesive bonding
Polymer adhesive such as Mapeflex or tile-grade silicone with an applicator gun.
Finishing
File, 120-grit abrasive, plastic spatula, and masking tape for carefully finishing the details.
Inspection
Spirit level, laser level, and square to ensure precise alignment.
Properly prepare the wall before bonding
The quality of the surface directly affects how well the panels hold over time. A poorly prepared wall can cause deformation or insufficient adhesion.
- Check the flatness: maximum tolerance of 3 mm when checked with a 1.5 m straightedge.
- Clean the surface: the wall must be dry, clean, and dust-free.
- Eliminate moisture: particularly important in bathrooms and wet rooms.
- Check the stability: no part of the wall should move before bonding.
Important point
Installing on an uneven wall greatly increases stress on the panels and may compromise the final appearance.
How do you cut KOBERT-IN panels?
The cuts must be made precisely to preserve the decorative finish and ensure clean joints.
- Cut with the decorative side facing upward: this limits visible chipping.
- Use a guide: to achieve a perfectly straight cut.
- Lightly sand the edges: after each cut for a clean finish.
- Work without rushing: a poor cut is difficult to conceal visually.
Applying the adhesive and installing the panels
The adhesive must remain flexible enough to absorb the support’s natural variations. An overly rigid installation is not recommended.
- Remove the backing film: before applying any adhesive.
- Apply the adhesive in beads: spaced approximately 20 cm apart, with a minimum thickness of 3 mm.
- Maintain a perimeter gap: use 3 mm expansion spacers.
- Do not flatten the beads: when positioning the panel.
- Check the alignment: with a spirit level or laser level.
Adjustment time
Once the panel is positioned, you generally have 15 to 20 minutes to adjust its alignment precisely.
Sealing and finishing
The joints ensure both watertightness and the final visual quality of the installation.
- Apply silicone sealant: in all corners and joints.
- Protect the edges: with masking tape before application.
- Smooth immediately: with a damp spatula.
- Clean promptly: to avoid leaving permanent marks on the decorative finish.
Best practices to remember
A few additional details will help you achieve an even cleaner and more durable result.
- Follow the order of the designs: according to the numbering indicated on the back of the panels.
- Check the direction arrows: before final gluing.
- Work at room temperature: without excessive moisture.
- Clean regularly: with a soft cloth and non-abrasive products.
In summary
When installed correctly, KOBERT-IN panels offer excellent long-term durability and a high-end finish in bathrooms, kitchens, and decorative spaces alike.
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