Storage of rubber products and service life
Even a high-quality rubber product can lose its properties before use if stored incorrectly. Proper storage conditions extend the shelf life and prevent unexpected failures in service. In this article we explain how rubber and EPDM products should be stored and how to extend their service life.
Factors that age rubber during storage
- Heat — high temperature accelerates chemical ageing.
- Light (especially UV) — direct sunlight cracks the surface.
- Ozone — ozone sources such as electric motors should not be nearby.
- Deformation — a prolonged stretched or compressed state causes compression set.
- Oil and solvents — accidental contact leads to swelling.
Ideal warehouse conditions
Temperature and humidity
It is recommended to store rubber products in a cool, dry place — ideally between approximately +5 °C and +25 °C. They should be kept away from heat sources and radiators.
Protection from light
Products should be stored in a dark or covered place, protected from direct sunlight and strong artificial light. Although UV- and ozone-resistant EPDM is chosen for outdoor use, all materials should be protected during storage.
Correct position
Seals and profiles should be stored in a stress-free, relaxed state and not crushed under heavy loads. Rings should be laid without twisting, in their natural shape.
Differences by material type
Although EPDM is superior in terms of outdoor exposure and ageing, NBR products that come into contact with oil should be stored separately from oil sources. For high-temperature applications, silicone products have their own storage characteristics. When deciding on material selection, also take future storage conditions into account.
Extending service life
- Check the surface before installation — do not use if there are signs of cracking, hardening or stickiness.
- Use the older batch first (FIFO principle).
- During installation, use only suitable lubricants.
A properly stored rubber product that has passed quality control serves reliably for many years. For products suited to your application and supplied with correct storage recommendations, look at our range and get in touch with us.