Vibraflex 13 AL SB

Vibraflex is a damping sheet for structure-borne sound made of soft aluminium with a visco-elastic damping layer. Vibraflex has low weight, can be bent, and is self-adhesive.

Areas Of Application

Machine tools, fans, chip extractors, printing machinery, vibrators, electric motors, hydraulic components, packing machinery.

Transportation and vehicles
Motorcars, buses, trucks, contractor’s machinery, forest machinery, aircraft.

Hospital care and large-scale kitchens
Kitchen sink units, dishwashing machines, dialysis machines, circulation pumps, air pumps, roller tables.

Lifts, motor rooms, fans and ducts.

Computers, printers, picking and enveloping machines, copying machines.

Method of use
The parts are cut or stamped to the required shape and carefully pressed on to a surface that must be free from oil, dirt, and dust.


  • Good damping of thin sheet metal
  • Low weight
  • Wear resistant
  • Hygienic
  • Water repellent
  • Odourless
  • Incombustible
  • Long service life

Technical Data

Loss factor:
See PDF diagram.

Temperature resistance:
-25°C to +160°C

Fire class:
Surface layer class 1

Metallic glossy

Adhesive’s tear strength:
Approx. 15 N/cm test width

0.3 mm Al
0.1 mm damping layer

0.9 kg/m2

Delivery format:
1000x1000mm (other sizes and shapes can be supplied on request)


The shaping and positioning of the material is of major importance to achieve an optimal sound-dampening effect. Sontech has long experience of practical noise control projects in a wide range of industrial fields. These experiences can be a valuable addition to the laboratory data given in the datasheet. Sontech can also assist with advice and sound measurements for noise control and in the manufacture of customised material sets.

Designation System


Relative Loss factor:

Aluminium surface:

Fire class UL94 V-0:

Exampel of ordering code: