How long do EPDM O rings last?
Learn About O-Ring Shelf Life and Storage Recommendations
| Unlimited | FKM, FFKM, Silicone, Fluorosilicone, EPDM, Butyl, FEPM |
|---|---|
| 15 Years | NBR Buna-N, HNBR, Chloroprene, Hypalon, ACM Polyacrylate |
| 5 or 10 Years | Polyurethane depending on type |
| 3 Years | SBR |
How do you store EPDM?
Rubber Storage & Shelf Life
- Temperature store between 15-25°C (59-77°F) and away from direct heat sources.
- Light avoid exposure to direct sunlight, artificial light or UV.
- Humidity below <65% recommended.
- Ozone avoid placing near electric motors or high voltage electrical equipment.
Does synthetic rubber have a shelf life?
Per the Rubber Manufacturer’s Association (RMA) findings, heat and moisture are the most common hazards to affect sheet rubber in the warehousing environment….Shelf Life for Rubber Products.
| COMMON / TRADE NAME | TYPE OF RUBBER POLYMER | RECOMMENDED SHELF LIFE |
|---|---|---|
| Natural Rubber | 3-5 years | |
| SBR | Styrene-butadiene | |
| Synthetic Natural Rubber | Polyisoprene |
How long will rubber last?
Shelf life is one issue and service life is another. However, one should keep in mind that storage conditions can affect the service life of rubber products….Question 3: What is the recommended shelf life of various polymers?
| Common or Trade Name | Recommended Shelf Life |
|---|---|
| SBR | 3-5 years |
| Natural Rubber, Pure Gum | 3-5 years |
What is the shelf life of Buna N rubber?
15 Years
O-Ring Shelf Life Recommendation per AS5316
| Elastomer Family | ASTM | Shelf Life |
|---|---|---|
| Nitrile (Buna-N or NBR) | NBR | 15 Years |
| Perfluorelastomer | FFKM | Unlimited |
| Polytetrafluoroethylene (Teflon) | PTFE | Unlimited |
| Polyacrylate | ACM | 15 Years |
Does polymer have a shelf life?
Product rotation is recommended to avoid prolonged storage times. The shelf life of most solution polymers is at least one year in unopened containers. Consult the product Technical Data Sheet for shelf life of individual products.
What is a cure date and shelf-life?
The Cure Date is the date that the rubber is fully molded in this process. Shelf(Storage) Life – the maximum period of time, from cure date, to the date an elastomeric product is used as a component part in assemblies, sub-assemblies, and systems.
How do you preserve rubber O-rings?
Storage Conditions O-rings must be stored below 100° F (38° C). Like food items, colder temperatures mean better preservation. But before installation, O-rings must be brought back to room temperature to remain flexible. Humidity must be monitored carefully as well, as dry environments will affect the rubber.
How do you preserve rubber products?
Ideally, rubber and plastic objects should be stored in cold, dark, dry, and oxygen-free conditions. Cold, dark, dry conditions can be found in the refrigerator section of a frost-free refrigerator or in a low relative humidity cold storage room.
How do you store rubber?
How To Store Tire Bladders and Rubber Parts
- Store rubber parts in opaque containers to avoid exposing them to light.
- Rubber parts should be stored away from circulating air and sources of ozone.
- Storage area should remain dry, below 75% relative humidity and at temperatures above 5° C (41°F) and below 38°C (100°F).
How do you prolong the life of rubber?
Another way to extend life is to change the color; adding carbon black prolonges the life of rubber substantially (Protection from light) and by adding antioxidants. The background of embrittlement of polybutadiene (polyisoprene) based rubbers is crosslinking by radical chain reactions with oxygen.
Does silicone rubber have a shelf life?
Storage conditions are the primary factor affecting the quality and shelf life of rubber products. If stored suitably, silicone rubbers generally maintain their main performance features for an average of six months, and up to 12 months in certain cases.