The WSL wiper has a high flexible wiping lip on the dynamic side and a strong, shorter, protruding lip on the static side.
This special profile keeps the rod and the static side where it is housed free from any impurity, waste or water. Impurities would damage the seal and corrode the inner part of the cylinder.
The material used is a polyurethane with a high modulus of elasticity, low compression set and high
wear resistance.
It is not very problematic as it can be done in semi- open groove located in the nearest part outside the
cylinder.
Remove cutting edges and flashes to avoid the scratching of the wiper during the installation.
For further information please refer to the installation instructions on page 26.