Seal Storage

Proper storage of elastomer seals and gaskets is critical for maintaining their performance over time. Per ISO 2230 guidelines: temperature 15-25°C (avoid extremes — cold causes crystallization in neoprene, heat accelerates aging); relative humidity 50-70%; no direct sunlight or UV (causes surface cracking in NR/SBR); no ozone exposure (keep away from electric motors, welding equipment, mercury vapor lights); no deformation (store flat or on mandrels, never hang O-rings on hooks/nails); no contact with metals (especially copper and manganese which catalyze degradation). Shelf life: NR/SBR 5-8 years, NBR/EPDM/CR 8-10 years, silicone 10-15 years, FKM 15-20 years, PTFE indefinite (no aging). First-in-first-out (FIFO) inventory rotation. Label each bag with material, size, date received. Per ISO 2230 and DIN 7716 for rubber storage.

What you need to know

Proper storage of elastomer seals and gaskets is critical for maintaining their performance over time.

Per ISO 2230 guidelines: temperature 15-25°C (avoid extremes — cold causes crystallization in neoprene, heat accelerates aging); relative humidity 50-70%; no direct sunlight or UV (causes surface cracking in NR/SBR); no ozone exposure (keep away from electric motors, welding equipment, mercury vapor lights); no deformation (store flat or on mandrels, never hang O-rings on hooks/nails); no contact with metals (especially copper and manganese which catalyze degradation).

Shelf life: NR/SBR 5-8 years, NBR/EPDM/CR 8-10 years, silicone 10-15 years, FKM 15-20 years, PTFE indefinite (no aging).

First-in-first-out (FIFO) inventory rotation.

Label each bag with material, size, date received.

Full definition

Seal storage plays a vital role in the longevity and performance of elastomeric seals and gaskets, which are critical components in various industrial applications. Improper storage can lead to irreversible damage, significantly reducing their effectiveness and lifespan. According to ISO 2230 guidelines, seals should be kept in a controlled environment where the temperature ranges between 15°C and 25°C. Extreme cold can induce crystallization in materials such as neoprene, while elevated temperatures can accelerate the aging process of elastomers, leading to potential failure. Relative humidity levels should be maintained between 50% and 70%, as excessive moisture can promote mildew growth, whereas low humidity can lead to drying and cracking of the seals.

In addition to temperature and humidity control, it is essential to protect elastomers from direct sunlight and ultraviolet (UV) light, which can cause surface cracking, particularly in natural rubber (NR) and styrene-butadiene rubber (SBR). Ozone exposure must also be avoided, as it can degrade the material properties of elastomers; this necessitates keeping seals away from electric motors, welding equipment, and mercury vapor lights, which can generate ozone. Furthermore, the physical storage method is crucial; seals should be stored flat or on specific mandrels without hanging O-rings on hooks or nails, which can cause deformation and permanent damage.

Proper labeling and inventory management are also important, with a first-in-first-out (FIFO) approach recommended to ensure that older stock is used before newer stock, thus reducing the risk of using expired materials. Shelf life varies by material: natural rubber (NR) and styrene-butadiene rubber (SBR) have a shelf life of 5-8 years, while nitrile (NBR), ethylene propylene diene monomer (EPDM), and chloroprene (CR) last 8-10 years. Silicone seals can last 10-15 years, fluorocarbon (FKM) seals can endure for 15-20 years, and polytetrafluoroethylene (PTFE) has an indefinite shelf life due to its superior resistance to aging. Compliance with ISO 2230 and DIN 7716 guidelines for rubber storage is crucial to ensuring optimal performance and reliability of elastomer seals.

What you need to know

What you need to know: Proper storage temperature is critical; maintain between 15°C and 25°C to avoid crystallization and accelerated aging.

Relative humidity should be kept at 50-70% to prevent mildew growth and drying.

Store seals away from direct sunlight, UV light, and ozone-generating equipment to avoid degradation.

Use FIFO inventory rotation to ensure older materials are used first, maximizing shelf life.

Different elastomers have varying shelf lives: NR/SBR (5-8 years), NBR/EPDM/CR (8-10 years), silicone (10-15 years), FKM (15-20 years), and PTFE (indefinite).

Industrial applications

1Used in the automotive industry for sealing engine components and preventing leaks.

2Applied in hydraulic systems to maintain pressure and prevent fluid contamination.

3Utilized in aerospace applications for sealing fuel systems and hydraulic lines.

4Employed in food processing equipment to ensure hygienic sealing and prevent contamination.

5Implemented in HVAC systems to seal ducts and improve energy efficiency.

Common mistakes

✕Storing seals in extreme temperatures, leading to crystallization or accelerated aging.

✕Failing to label and rotate stock, resulting in the use of expired seals.

✕Hanging O-rings and seals on hooks, which can cause deformation and compromise integrity.

✕Exposing seals to ozone-generating equipment, accelerating material degradation.

Seal Storage

What you need to know

Full definition

What you need to know

Industrial applications

Common mistakes

Pro tip

Technical standards

Suppliers of seals & gaskets in Mexico

Applicable standards