1. ELGR are being treated with corrosion protection grease in assembly. Unfortunately this grease wears off from corrugated board dust, which we didn't expect.
Festo will change packaging concept to plastic tubes in the future. Worldwide rollout will take some weeks, but will be finished until end of June hopefully.
(honestly spoken we're in serious discussion with logistics department)
2. For long-term optimization Festo is doing investigations in alternative rod material, which is a question of performance and price of course.
Corrosion because of material.
The material CF53 is not corrosion resistant.
The rods are protected after assembly with a corrosion resistance oil. After that, they get wtrapped in plastic foil.
But once the oil is gone the rods can corrode, because of the material.