A Guide to Installing PET Acoustic Panels

19/11/2025

PET (Polyethylene Terephthalate) acoustic panels are a popular and eco-friendly solution for improving sound quality in any space. Made from recycled plastic fibers, these panels are not only effective at absorbing mid and high-frequency noises but also boast a modern, felt-like aesthetic. Proper installation is key to maximizing their acoustic performance and visual appeal. This guide will walk you through the primary methods for installing PET acoustic panels.

Pre-Installation: Planning and Preparation

Before you begin, careful planning is essential.

Surface Preparation: The installation surface must be clean, dry, flat, and structurally sound. Remove any dust, oil, or flaking paint. For best results, the wall should be painted or primed beforehand.
Acoustic Planning: Decide on the layout of your panels. You can cover an entire wall or create a creative feature pattern (like a cloud, geometric shape, or a random arrangement). A well-planned layout significantly impacts the final look and acoustic performance.
Panel Acclimatization: Allow the PET panels to acclimate to the room's temperature and humidity for at least 24-48 hours before installation. This prevents expansion or contraction after they are fixed in place.
Gather Your Tools: You will likely need:
- PET Acoustic Panels
- A strong, appropriate adhesive (Spray adhesive, double-sided acoustic tape, or adhesive putty)
- A laser level or spirit level and a pencil
- A measuring tape
- A sharp utility knife or fine-toothed saw for cutting
- A roller (for pressing panels)

Method 1: Direct Adhesive Application (Most Common)

This is the fastest and most common method for installing panels directly onto walls.

Recommended Adhesives:

High-Tack Spray Adhesive: Provides a strong, instant bond. Spray evenly on the back of the panel.
Double-Sided Acoustic Tape: Excellent for a clean install without liquid adhesives. Apply strips around the perimeter and in an "X" across the back of the panel.
Adhesive Putty (e.g., Tacwise): A reusable and repositionable option, ideal for rented spaces or if you plan to change the layout later.

Step-by-Step Instructions:

Mark Your Guide Lines: Use a laser level to mark a perfectly vertical or horizontal line on the wall. This will be your guide to ensure the first panel is installed straight. All subsequent panels will align with this one.
Apply Adhesive: Follow the manufacturer's instructions for your chosen adhesive.
- For spray adhesive, apply a uniform coat to the back of the panel.
- For double-sided tape, cover the back of the panel with strips.
- For adhesive putty, roll small balls and place them evenly across the back.
Install the First Panel: Carefully align the first panel with your guide line and press it firmly onto the wall. Start from one corner and work your way across, applying even pressure.
Press and Secure: Use a firm roller or your hands to press the entire surface of the panel, ensuring full contact with the wall. This is crucial for a strong bond.
Continue Installation: Butt the next panel tightly against the first one, ensuring there are no gaps. Repeat the process until your design is complete.
Cutting Panels: To cut a panel, measure and mark the cut line on the back. Use a sharp utility knife and a straight edge, scoring deeply several times before snapping it. For more intricate cuts, a fine-toothed saw is recommended.

Method 2: Installing on Battens (For Uneven Walls or Enhanced Acoustics)

For uneven walls (like concrete or brick) or if you want to create an air gap for even better low-frequency absorption, installing wooden or metal battens is the best approach.

Step-by-Step Instructions:

Install the Battens: Use a level to attach horizontal or vertical wooden (e.g., 1x2) or metal battens to the wall studs using appropriate screws and wall plugs. Ensure the battens create a flat, level plane.
Create the Mounting Surface: You can then attach a substrate like thin plywood or MDF to the battens, or attach the panels directly to the battens themselves.
Attach Panels to Battens:
- Adhesive: You can use a strong construction adhesive to glue the panels directly to the battens or the new substrate.
- Mechanical Fasteners: For a supremely secure hold, you can use a color-matched staple gun (from the front) or discreet screws through the panel into the battens. The dense texture of PET felt often hides the fastener heads effectively.

Method 3: Using a Mounting Clip System (Most Flexible & Reusable)

For the ultimate flexibility and a damage-free installation, a dedicated clip system is ideal. This is common in commercial settings but excellent for anyone who may want to rearrange or remove the panels later.

Step-by-Step Instructions:

Install the Clips: Specific metal or plastic clips are screwed directly to the wall in a grid pattern that corresponds to your panel layout.
Attach Panels: The PET panels are then simply pressed or hooked onto the clips. The panels lock securely in place but can be removed without damage if needed.
Advantages: This method allows for easy panel replacement, access to walls behind, and the creation of complex 3D shapes.

Pro Tips for a Flawless Finish

Seamless Joints: When butting panels together, apply firm pressure to ensure a tight, invisible seam.
Safety First: Always wear a mask and safety glasses when cutting the panels to avoid inhaling fibers.
Test Adhesive: If using a new adhesive, test it on a small, inconspicuous area of the wall and the back of a spare panel to ensure compatibility and no staining.
Clean Cuts: Take your time with cutting. A sharp blade and a steady hand are the keys to a professional-looking edge.

Conclusion

Installing PET acoustic panels is a manageable DIY project that can dramatically transform the acoustics and aesthetics of a room. Whether you choose the speed of direct adhesive, the robustness of a batten system, or the flexibility of mounting clips, following these steps will ensure a successful installation. Enjoy your new, quieter, and more stylish space