bgm says:
"The bgm PRO insulation wool consists of a highly heat-resistant ceramic-based mineral wool. Exhaust manufacturers often use inexpensive insulation material to minimize production costs. The result is often mufflers which do not deserve this name after a short period of operation. So this wool burns, i.e. it cakes to a solid lump which no longer has any sound-absorbing properties. A long-term remedy is our bgm PRO insulation wool which is a high-quality replacement for the original wool.
It comes already packed for one silencer filling, suitable for the most common silencers in the 50-70cc range. The dismantled silencer should be cleaned thoroughly before filling with new wool. The main focus should be on the perforated pipe. The perforation of the pipe can get clogged under unfavourable circumstances and would result in a still loud silencer despite filling with new wool. Therefore simply pierce the perforation with a slim screwdriver. The amount of wool should always be chosen so that it is sufficiently firm, so that it is not pushed away by the pressure of the exhaust gas, but on the other hand so loose that a good sound insulation is guaranteed."
Product safety information
Manufacturer information:
Scooter Center GmbH
Kurt-Schumacher-Str. 1
50129 Bergheim-Glessen
Deutschland
info@scooter-center.com
https://www.scooter-center.de