Datwyler is a leading supplier of O-rings and custom rubber seals for UL 157. Underwriters Laboratories Inc. (UL) is an independent, not-for-profit product-safety testing and certification organization. UL tests and certifies certain products to ensure the safety of end-use applications. To quickly find the best UL-listed compound for your application, please see the table below. If you need a UL-listed compound for a specific fluid, please contact us for quick feedback from our lab.
Elastomer
Compound
Durometer
Color
Key properties
FLUOROCARBON RUBBER
9124-65
60
Black
High fluorine FKM elastomer with good fuel resistance
Datwyler is committed to being the leader in general-purpose nitrile seals. Because nitriles are versatile and inexpensive, they are the most popular industrial seal material. More than 50 percent of sealing needs can be met using nitrile. Datwyler recommends that you follow the general rule: consider nitrile first.
4200-70 Meets Your Needs
1. Excellent Physical Properties
Datwyler’s 4200-70 70-durometer nitrile O-rings have excellent physical properties. For nearly 40 years, 4200-70 O-rings have been used in a wide variety of applications with great results. So when you specify 4200-70, rest assured that you’ve made the right choice.
2. Enhanced Resistance to Compression Set
To perform properly, seals must resist taking a set from compression after being installed. When a seal takes a set, it no longer exerts force on the mating surfaces, resulting in leakage. A compound with low compression set, like 4200-70, better maintains its elastomeric properties and original thickness, preserving seal integrity. Seals made from Datwyler’s 4200-70 compound provide excellent resistance to compression set. After testing 4200-70 for 22 hours at 212°F, it had a compression set of only 6 percent.
3. Very Good Resistance to a Variety of Fluids
Nitrile compounds, like 4200-70, provide very good service in gasoline, crude oil, power steering fluid, hexane, toluene, water, water-based hydraulic fluids, and dilute bases such as sodium hydroxide.
Key Features
Datwyler’s 4200-70 nitrile seals are ideal for use in a variety of applications. Key features include the following:
Excellent resistance to compression set:
Datwyler 4200-70 seals have a compression set of only 6 percent after 22 hours at 212°F.
Wide range of service temperatures:
Datwyler 4200-70 seals are suitable for applications ranging from -35 to +250°F.
Chemical Resistance
USE WITH
DO NOT USE WITH
Automatic Transmission Fluid
Crude Oil
Gasoline
Propane
Water
ASTM is the acronym for the American Society for Testing and Materials. IRM is the acronym for Industry Reference Material.
Source: Test Report 2498.
4200-70 Nitrile Seals
Need General-Purpose Nitrile Seals?
Datwyler is committed to being the leader in general-purpose nitrile seals. Because nitriles are versatile and inexpensive, they are the most popular industrial seal material. More than 50 percent of sealing needs can be met using nitrile. Datwyler recommends that you follow the general rule: consider nitrile first.
4200-70 Meets Your Needs
1. Excellent Physical Properties
Datwyler’s 4200-70 70-durometer nitrile O-rings have excellent physical properties. For nearly 40 years, 4200-70 O-rings have been used in a wide variety of applications with great results. So when you specify 4200-70, rest assured that you’ve made the right choice.
2. Enhanced Resistance to Compression Set
To perform properly, seals must resist taking a set from compression after being installed. When a seal takes a set, it no longer exerts force on the mating surfaces, resulting in leakage. A compound with low compression set, like 4200-70, better maintains its elastomeric properties and original thickness, preserving seal integrity. Seals made from Datwyler’s 4200-70 compound provide excellent resistance to compression set. After testing 4200-70 for 22 hours at 212°F, it had a compression set of only 6 percent.
3. Very Good Resistance to a Variety of Fluids
Nitrile compounds, like 4200-70, provide very good service in gasoline, crude oil, power steering fluid, hexane, toluene, water, water-based hydraulic fluids, and dilute bases such as sodium hydroxide.
Key Features
Datwyler’s 4200-70 nitrile seals are ideal for use in a variety of applications. Key features include the following:
Excellent resistance to compression set:
Datwyler 4200-70 seals have a compression set of only 6 percent after 22 hours at 212°F.
Wide range of service temperatures:
Datwyler 4200-70 seals are suitable for applications ranging from -35 to +250°F.
Chemical Resistance
USE WITH
DO NOT USE WITH
Automatic Transmission Fluid
Crude Oil
Gasoline
Propane
Water
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