A braking system including a pre-charge with a plurality of pumps disposed in parallel with respect to one another. The machine includes a chute having an inlet end configured to receive the bag of compressed blowing wool. The aspherical lens has a planar end surface on one end for receiving and deflecting parallel light beams from the input collimating lens. The width of the first layer is less than the width of the second layer. for at least 30 seconds with a mineral treating agent which is one or more polysilicic acids, silicates or aluminosilicates. A method for decomposing the sealing device is also described.