Bitumen-Based Damping Sheets for Reducing Panel Drumming
Self-Adhesive Damping Sheets Available in Different Thicknesses
Bitumen-based damping sheets are applied to vibration-prone components to increase their surface mass and reduce vibration decay and panel drumming.
OTO Akustiktechnik supplies self-adhesive bitumen-based damping sheets in different thicknesses and surface masses. In addition to full-size sheets, we can also provide individual custom-cut and die-cut parts on request.
Typical Applications
- machine and equipment housings
- sheet-metal panels and covers
- washing machines and dishwashers
- refrigeration and domestic appliances
- ventilation and air-conditioning components
- steelwork and container construction
- room-divider and partition-wall systems
- automotive and commercial vehicle applications
Properties and Processing
- self-adhesive backing
- available in different thicknesses and surface masses
- increases the surface mass of thin-walled components
- can be shaped to curved contours by careful heating
- available as full-size sheets, custom-cut parts or die-cut parts
For reliable adhesion, the substrate must be clean, dry and free from grease. The damping sheet must be applied over its entire surface using sufficient pressure. Particular care should be taken when pressing down edges and corners.
Available Versions
Bitumen-Based Damping Sheet, 2.6 mm
Full sheet size: approx. 1,020 × 1,020 mm
Material thickness: 2.6 mm
Surface mass: 5 kg/m²
Processing: custom-cut and die-cut parts available on request
Bitumen-Based Damping Sheet, 4.3 mm
Full sheet size: approx. 1,020 × 1,020 mm
Material thickness: 4.3 mm
Surface mass: 8 kg/m²
Processing: custom-cut and die-cut parts available on request
Bitumen-Based Damping Sheet, 5.5 mm
Full sheet size: approx. 1,020 × 1,020 mm
Material thickness: 5.5 mm
Surface mass: 10 kg/m²
Processing: custom-cut and die-cut parts available on request
Custom-Cut and Die-Cut Parts
The bitumen-based damping sheets can be cut or die-cut to match the geometry of your component. This provides you with a prepared material that can be integrated into your production process without time-consuming cutting work.
For an initial quotation, please provide the following information where possible:
- drawing, sketch or sample component
- required material thickness
- dimensions and geometry
- required quantity
- details of the intended application
Further information about our custom-cut and die-cut parts
Instructions for Reliable Adhesive Bonding
The adhesion of a self-adhesive bitumen-based damping sheet depends largely on proper preparation of the component and correct application.
- remove dust, oil, grease and other residues from the substrate
- apply the material to a clean and dry surface
- position the damping sheet over the entire surface and press it down evenly
- apply sufficient pressure using a suitable roller
- press down edges, corners and curved areas particularly carefully
- for reliable adhesion, both the bitumen-based damping sheet and the component should have a temperature of at least approximately 22 °C
- temperature range: approximately –30 °C to +80 °C, briefly up to approximately +180 °C
- observe the processing conditions and instructions in the relevant data sheet
For curved or complex components, the damping sheet can be carefully heated and shaped to match the contour. The relevant processing instructions must be observed.
Open the technical data sheet for the bitumen-based damping sheet
Car Hi-Fi Package for Automotive Applications
For reducing panel drumming in thin-walled vehicle areas, we offer a pre-cut Car Hi-Fi package made from self-adhesive bitumen-based damping sheet on request.
Typical applications include car doors, boot lids, floor areas and wheel arches. The material increases the surface mass of the sheet metal and therefore reduces its tendency to drum.
Contents: 50 custom-cut pieces
Dimensions: approx. 200 × 500 mm
Material thickness: 2.6 mm
Surface mass: 5 kg/m²
Price: on request
For the internal acoustic damping of loudspeaker enclosures, we also supply polyester wadding and other sound-absorbing materials.
Which Version Is Suitable for Your Application?
The most suitable material thickness depends on factors including the component, existing sheet-metal thickness, component geometry, available installation space and required increase in surface mass.
Send us a description of your application together with a drawing or photograph where possible. We will assist you in selecting a suitable version and prepare a quotation for full-size sheets, custom-cut parts or die-cut parts.
Request a bitumen-based damping sheet or custom-cut part
View additional applications