
High-performance damping solution for heavy-gauge metal and composite structures
constrained layer vibration damping tile
Decidamp® CLS is a constrained-layer, viscoelastic damping material engineered to significantly reduce structural vibration and noise in heavy-gauge metals and rigid composites over 3 mm thick. Designed for demanding industrial, marine, and mechanical applications, it combines a steel constraining layer with a reinforced viscoelastic core to efficiently absorb and dissipate vibrational energy.
Its semi-rigid tile structure provides high mechanical strength and superior damping, while the lightweight peel-and-stick backing allows for quick, clean installation on flat or curved surfaces—without heat or complex preparation.
By applying Decidamp CLS to at least 70% of a structure, users achieve substantial reductions in vibration and radiated noise, as well as improved transmission loss. The material’s optimized weight-to-performance ratio also enables use of thinner constraining plates for a lighter, more flexible assembly.
Ideal for marine hulls and bulkheads, machine housings, compressor panels, and metal ducting, Decidamp CLS ensures quieter, longer-lasting systems with outstanding durability and resistance to weather, UV exposure, and mechanical fatigue.
Applications
- Steel & rigid plastics (ABS, Fibre reinforced plastic, Carboncomposite, etc) surfaces
- Marine vessels applications such as bulkheads, hull construction, tank tops, engine bed girders and the structure above props
- Heavy machinery panelling
- Generators, compressor covers and machine housing guards
- Metal air-conditioning ducts and compressor housings
- Laundry and garbage chutes, hoppers, lids and bins
Features
- Free from lead and bitumen
- Lightweight and easy to handle
- Easy to install, high-tack self-adhesive backing, simply peel and apply pressure to position
- Easily conforms to irregular surfaces without the use of heat guns
- Remains flexible, does not become brittle
- Resistant to weather and UV light
- Great low frequency and broad frequency damping performance

Installation
Decidamp® CLS combines innovative design with ease of application to deliver superior noise and vibration reduction while saving time and costs. Its peel-and-stick adhesive backing eliminates the need for messy sprays or complex procedures, providing a clean, efficient, and reliable installation. With an optimized weight-to-performance ratio, Decidamp CLS achieves exceptional damping effectiveness using up to 10% less material than comparable products, reducing both labor and material costs.
The following provides a brief overview of key installation considerations for Decidamp CLS. For more information, consult your local Pyrotek representative.
For best results, ensure the application surface is clean, dry, and free of contaminants. Remove the adhesive liner completely and allow the material to relax briefly before applying. Press firmly to achieve a secure bond, ensuring at least 70% coverage of the target surface for optimal vibration damping performance. Decidamp CLS can be easily cut to size and installed using basic tools such as a utility knife and roller, making it suitable for a wide range of structural applications.