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  • Temperature – Suitable temperatures are between 15 and 25ºC. Please bear in mind that at low temperatures (i.e. sub-zero) rubber products tend to be relatively stiff and brittle. Storing very close to heat generators like radiators, conventional heaters or pipes should also be avoided.

  • Ozone – Ozone (O3) has negative impact on rubber products in particular. Such products should be kept away from ozone generators like fluorescent light sources, electrical motors or flammable chemicals. It is well advised to keep the product in its original air-proof packing if available.

  • Light – Avoid product exposure to high ultra-violet light sources like fluorescent lights or direct sunlight. Instead prefer natural sources like incandescent bulbs in the storage area. If there is too much sunlight coming in the glasses of the storage room should be painted with orange or red to filter the UV light.

  • Humidity – Relative humidity in the storage environment should be between 40 and 70 percent. Humidity should be kept at a certain level that would not allow the water to condense. Damp storage areas in particular should be avoided.

  • Aggressive media – Do not get the rubber product in contact with chemicals or chemical vapors like fuels, solvents, acids or disinfectants. Keep them away from metals like copper and manganese and their alloys. Do not use wrap-up films containing plasticizers. Contact between rubber products of different compositions, different colors in particular, should be avoided as well.

  • Dust – Product should be kept in its original package protected from dust and dirt until initial use. Ignoring this simple precaution may cause a foreign particle on the seal to disturb the forming of the lubricating film between the sealing lip of the rotary seal and the counterface. Furthermore such particles in a reciprocating application may escape into the hydraulic or pneumatic system and harm the delicate components.

  • Stacking – Do not stack relatively heavy weighing articles (e.g. complete pneumatic piston seals) so that sealing lips may be deformed. Do not leave seals under constant load. High temperatures and constant compression or tension may lead to plastic deformation on the seal, particularly on the sealing lips.

  • Stocking – Both resellers and users should pay attention to release the old articles ahead of new arrivals. First-in-first-out should apply to the possible extent.

  • Cleaning – Should a need arise soap and water can be used to clean a non-metallic elastomeric seal with no spring. It should be rinsed off properly and let to dry at room temperature. No potentially aggressive cleaning material or solvent to be used. Reliably dirt-free oil of suitable composition or grease can be used to lubricate the metallic covering or the spring against oxidation.

    Reference: ISO 2230
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