{"product_id":"mr-o-ring-024-epdm-o-ring-70a-durometer-pack-of-500-durable-seals","title":"Mr O-Ring 024 EPDM O-Ring 70A Durometer Pack of 500 - Durable Seals","description":"\u003cp\u003eIn this review the reviewer looks at the Mr O-Ring 024 EPDM O-Ring pack of 500 and finds it best for technicians, maintenance shops, and DIYers who need consistent, weather-resistant seals in bulk. The single biggest reason to buy is the material and size consistency: these EPDM rings deliver reliable resistance to ozone, sunlight and a wide range of fluids while matching common AS568 dimensions, making them a practical choice when replacing or stocking standard service parts.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaterial and durometer:\u003c\/strong\u003e The EPDM compound at 70A hardness balances flexibility and resilience for dynamic and static sealing tasks.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e Rated from -55C to 125C, these o-rings work across cold storage and typical hot-service environments without rapid embrittlement.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eChemical compatibility:\u003c\/strong\u003e Performs well with alcohols, dilute acids and alkalis, brake fluid, phosphate ester hydraulic fluids, and water for common maintenance uses.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eStandard sizing:\u003c\/strong\u003e Nominal AS568 024 dimensions and close actual measurements reduce fit surprises when replacing worn seals in pumps, valves, or hose fittings.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eBulk pack:\u003c\/strong\u003e The pack of 500 is cost-effective for shops and repeat repairs, cutting downtime by keeping spares on hand.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eShelf stability:\u003c\/strong\u003e With effectively unlimited shelf-life, these o-rings can be stored long-term without concern for premature degradation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Mr O-Ring 024 EPDM is aimed at industrial maintenance personnel, plumbing and hydraulic technicians, and home mechanics who need a dependable stock of standard replacement seals. Its compatibility with steam, water and many polar fluids makes it useful in building systems, vehicle brake fluid service (non-systemic applications), and general-purpose sealing where ozone and weather resistance matter.\u003c\/p\u003e\n\n\u003cp\u003eThose who need resistance to strong hydrocarbons, petroleum oils, or extreme high-temperature polymer seals should look elsewhere; EPDM is not suitable for aggressive nonpolar solvents or continuous service above the listed temperature range.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eGood ozone, sunlight and weather resistance for outdoor and exposed installations.\u003c\/li\u003e\n \u003cli\u003eWide chemical compatibility with alcohols, dilute acids and phosphate ester hydraulic fluids allows use in varied service environments.\u003c\/li\u003e\n \u003cli\u003eBulk quantity of 500 pieces provides economical stocking and reduces repeat ordering.\u003c\/li\u003e\n \u003cli\u003eShelf-life is effectively unlimited, simplifying inventory for shops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eNot recommended for exposure to strong petroleum-based oils or nonpolar solvents, limiting suitability in some automotive and industrial oil applications.\u003c\/li\u003e\n \u003cli\u003e70A hardness may be firmer than ideal for ultra-low-pressure sealing where a softer compound would seal better.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eEPDM rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eDurometer\u003c\/td\u003e\n\u003ctd\u003e70A\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eNominal dimensions\u003c\/td\u003e\n\u003ctd\u003e1-1\/8 in ID, 1-1\/4 in OD, 1\/16 in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eActual dimensions\u003c\/td\u003e\n\u003ctd\u003e1.114 in ID, 1.254 in OD, 0.070 in CS\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eMetric dimensions\u003c\/td\u003e\n\u003ctd\u003e28.30 mm ID, 31.86 mm OD, 1.78 mm CS\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003eTemperature range\u003c\/td\u003e\n\u003ctd\u003e-55C (-67F) to 125C (257F)\u003c\/td\u003e\n\u003c\/tr\u003e\n \u003ctr\u003e\n\u003ctd\u003ePack quantity\u003c\/td\u003e\n\u003ctd\u003e500 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Mr O-Ring 024 EPDM pack of 500 is a practical, cost-effective choice for anyone needing reliable, weather-resistant seals in standard AS568 sizes. It is particularly good value for maintenance shops and installers who service water systems, steam, and polar-fluid applications, though it is not the right choice when long-term exposure to petroleum oils or extreme high temperatures is expected.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these o-rings sized to AS568 standards?\u003c\/strong\u003e\u003cbr\u003eYes, the product is offered to match the AS568 024 nominal size with closely measured actual dimensions for predictable fit.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan these o-rings be used in brake systems?\u003c\/strong\u003e\u003cbr\u003eThey perform with automotive brake fluids for many repair tasks, but always confirm compatibility with the specific system and fluid in use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eHow long can these o-rings be stored?\u003c\/strong\u003e\u003cbr\u003eThey have an effectively unlimited shelf-life when stored in normal dry conditions out of direct sunlight.\u003c\/p\u003e","brand":"Mr O-Ring","offers":[{"title":"Default Title","offer_id":48227709714651,"sku":"B07R542GLZ","price":56.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/51Kuv29LevL._SL1000_d09ca3c7-d079-489d-8e29-ca6ee44335df.jpg?v=1770726672","url":"https:\/\/gearmusthave.com\/products\/mr-o-ring-024-epdm-o-ring-70a-durometer-pack-of-500-durable-seals","provider":"GearMustHave","version":"1.0","type":"link"}