41 00... Position of shaped parts for cavity sealing
To reduce interior noise and avoid condensation, cavities in certain areas of the body are closed off. To do this, shaped parts are inserted in the cavities. These shaped parts adapt themselves optimally due to heating of the body to approx. 180 °C by expanding to the shape of the cavities.
Because it is not possible to heat the body to this extent for a body repair, a different procedure has been specified for this situation. See INSTALLING CAVITY SEALING (EXPANDED) , INSTALLING CAVITY SEALING (NOT EXPANDED) or INSTALLING A CAVITY SEALING WITH 2-COMPONENT PU CAVITY FOAM .