- The compression sealing system for expansion joints
on the basis of decades of sealing experience
be fitted under any weather coditions and against pressing
resistance to pressure up to 1.0 bar
fitting by trained personnel
is a sealing cord based on closed-cell elastomers woth a smooth
outer skin and a circular cross-section.
This sealing packing has been developed from the rolling ring
which has proved its value for over 20 years as a seal for
pipe connections of concrete, reinforced concrete or stoneware
Fermadur® exercises its sealing effect by resetting forces
thar are produced as the sealing cord is deformed when being
pressed intro the joint. The cord need not to be glued to
the joint edges and this is why Fermadur® can be applied
under any weather conditions, in summer and winter, in rain
or snow. Even under constant water pressure, Fermadur®
can be fitted into the joint and become effective immediately.
The resistance to water pressure can be adjusted by changing
the degree of deformation. With a high degree of deformation,
tightness up to a water pressure of 1.0 bar can be obtained.
Higher pressures upon request.