Storage suggestions for rubber hoses

Due to the inherent nature of rubber, the physical properties and performance levels of all rubber products are subject to change. Typically, these changes occur over time depending on the specific type of rubber utilized. However, this degradation can be accelerated by a single factor or a combination of several factors. Other materials used in the reinforcement of rubber hoses may also be adversely affected by improper storage conditions. The following recommendations outline a series of preventive measures designed to minimize the deterioration of these items during storage.

1. Storage Duration A stock rotation system should be implemented to minimize the storage duration of rubber hoses as much as possible. If prolonged storage is unavoidable and the following recommendations cannot be strictly observed, the hoses must be thoroughly inspected prior to use.

2. Physical Storage Conditions Hoses must be stored in a manner that prevents mechanical stress, including excessive stretching, compression, or deformation, and must be kept away from sharp or pointed objects. It is preferable to store hoses on suitable racks or on dry ground. Coiled hoses must be stored horizontally; stacking should be avoided. If stacking is unavoidable, the height of the stack must be limited so as not to cause permanent deformation to the hoses at the bottom. As a general rule, avoid wrapping hoses around pillars or suspending them from hooks. If hoses are supplied in straight lengths, it is recommended to store them flat and unbent.

3. Contact with Other Materials Hoses must not come into contact with solvents, fuels, oils, greases, volatile chemicals, acids, disinfectants, or general organic liquids. Furthermore, direct contact with certain materials or their compounds—including manganese, iron, copper, and their alloys—can cause damage to all types of rubber. Hoses should also be kept away from polyvinyl chloride (PVC) and materials such as wood or fabric that have been impregnated with creosote.

4. Temperature and Humidity Recommended storage temperature: 10°C to 25°C. Note: Hoses must not be stored at temperatures exceeding 40°C or below 0°C. Extreme caution must be exercised when moving or handling hoses at temperatures below -15°C. Hoses must not be stored in the vicinity of heat sources. The relative humidity should optimally not exceed 65%.

5. Exposure to Heat The temperature limits specified in Section 4 must be strictly observed. If this is not feasible, thermal insulation must be utilized to protect the hoses from heat sources.

6. Exposure to Light Storage rooms should be kept dark; in particular, hoses must be protected from direct sunlight or intense artificial lighting. Any windows or glass-covered openings in the storage room should be shielded or fitted with light-blocking coverings.

7. Exposure to Oxygen and Ozone Hoses should be appropriately wrapped or stored in airtight containers to minimize their exposure to circulating air. Equipment capable of generating ozone must not be placed within the storage area, as ozone has a particularly detrimental effect on all rubber products.

8. Exposure to Electrical or Magnetic Fields The storage area must be kept free from any conditions that could generate electrical or magnetic fields, including exposure to high-voltage cables or high-frequency generators.