Constrained Layer Damping Tiles
Product Characteristics
Constrained Layer Damping Tiles consist of a constraining sheet and a viscoelastic polymer that consists of a high performance acrylic system. The polymer is primarily characterized by its joining strength, load-dissipating properties as well as temperature and weather resistance, and has a high loss factor in a wide temperature range, depending on the viscoelastic core type.
Due to the products unique composition, the double adhesive acrylic viscoelastic polymer combines very high adhesion levels with the ability to absorb and dissipate vibrational energy.
The products viscoelastic core can compensate for thermal elongation of bonded parts.
CLD tile performs well on materials that are difficult to join, such as powder coatings or plastic materials. Even in connection with combinations of such materials, this product provides advanced security due to its innovative design.
Vibratec CLD-tile VT-WL44
Temperatur range: Good for lower temperatures
Vibratec CLD-tile VT-WL55
Temperatur range: Good for higher temperatures
Vibratec CLD-tile VT-WL44-55 Hybrid
Temperatur range: Wide range of both temperatur and frequency
A realistic insertion loss are expected to be lower due to different in-situ conditions. Expect 6-10 dB for most applications.
Product Applications
- Reduction of structure borne noise radiation from steel bridges
- Reduction of structure borne noise radiation in marine & offshore applications
- Reduction of structure borne noise radiation in industrial applications, gensets, generators, wind turbine towers etc.
- Reduction of structure borne noise radiation in steel balcony applications
Video illustrating the noise reduction from installation of CLD-tiles at SSAB’s factory in Oxelösund in Sweden
Technical Specifications
cld-tiles-technical-specifications.xlsx
Insertion Loss
CLD-Tile | Max. Theoretical Insertion Loss llp, dB Measured on test specimens in a lab |
Comments | ||
+20 °C | +5 °C | -10°C | ||
VT-WL44 | 11 | 14 | 14 | Good for lower temperatures |
VT-WL55 | 14 | 13 | 11 | Good for higher temperatures |
VT-WL-Hybrid | 13 | 14 | 13 | Wide range of temperature and frequency |
Note: The realistic insertion loss is expected to be lower due to different in-situ conditions. Expect 6-10 dB for most applications |
Characteristics
Characteristic | VT-WL44 | VT-WL55 | VT-WL44-55-Hybrid |
Core material | Viscoelastic Acrylic Polymer | Viscoelastic Acrylic Polymer | 2 Viscoelastic Acrylic Polymers |
Adhesive | Acrylic | Acrylic | Acrylic |
Color | Grey / White | Transparent | Transparent / Grey / White |
Thickness of acrylic polymer |
app. 1 mm | app. 1 mm | app. 1 mm |
Adhesive strength on steel (After 72 h) |
36 N/cm | 24 N/cm | 24 N/cm |
Release liner | Yes | Yes | Yes |
Multiple layers | Yes (special option for increase damping further, and widen the temperature range) |
Yes (special option for increase damping further, and widen the temperature range) |
Yes (special option for increase damping further, and widen the temperature range) |
Constraining sheets available in |
• Galvanized steel, AISI 304 or AISI 316 • Aluminum & seawater resistant aluminum • Carbon fiber & FRP panels |
• Galvanized steel, AISI 304 or AISI 316 • Aluminum & seawater resistant aluminum • Carbon fiber & FRP panels |
• Galvanized steel, AISI 304 or AISI 316 • Aluminum & seawater resistant aluminum • Carbon fiber & FRP panels |
Size & shape | Customized/ Project specific | Customized/ Project specific | Customized/ Project specific |
Thickness | 2-20 mm, customized | 2-20 mm, customized | 2-20 mm, customized |