For needle felt liners used in the rehabilitation of trenchless sewerage systems, certain technical aspects are a prerequisite. This includes the requirement for products to be earthquake-resistant.

After the dramatic earthquake 2011 in Japan, numerous postures, which were rehabilitated with our hose liners before the quakes in Sendai, were examined for their condition. The results should provide information on the suitability of the pipe liners in order to gain insights for the future.

Extensive investigations yielded a very positive result: the tested SOLTA®LINER showed no signs of damage and thus proved their earthquake-resistance.