Rubber flat Washers

Rubber flat washers are versatile sealing and cushioning components known for their flexibility, resilience, and ability to dampen vibration and prevent leaks. They are available in various rubber materials, each with unique resistance properties to suit specific application environments.
Key Features and Benefits
Sealing: Their flexible and conformable nature allows them to create watertight and airtight seals between irregular surfaces, effectively preventing leaks in plumbing and industrial systems.
Vibration and Shock Absorption: Rubber washers help to absorb shocks and dampen mechanical vibrations, reducing noise levels and protecting components from damage and wear.
Surface Protection: They act as a protective barrier to distribute fastener load and prevent a screw or nut head from damaging the mating surface.
Electrical Insulation: As non-conductive materials, specific rubber washers can provide electrical insulation between components, preventing short circuits.
Corrosion Resistance: Unlike metal washers, rubber does not rust, making it suitable for outdoor and wet environments.
Common Materials and Properties
The choice of material determines the washer's resistance to specific chemicals and temperatures.
Nitrile (NBR / Buna-N): Offers good resistance to oil, fuel, and solvents, making it a popular choice for automotive and general industrial use with oils.
EPDM (Ethylene Propylene Diene Monomer): Known for excellent resistance to weather, ozone, UV radiation, hot water, and steam. It is ideal for outdoor applications and HVAC systems but not for use with petroleum-based oils.
Silicone: Provides high-temperature resistance and flexibility, suitable for medical, food processing (FDA-approved grades), and high-heat applications.
Neoprene (CR): Offers a balanced mix of oil and weather resistance, good for general-purpose use and refrigeration systems.
Viton® (FKM): Used when resistance to extreme temperatures and aggressive chemicals, oils, and fuels is required.
Applications
Rubber flat washers are used across a wide spectrum of industries:
Plumbing and Pipework: Widely used in faucets, hoses, and pipe connections to create seals and prevent leaks.
Automotive Industry: Utilized in engine components and various systems for sealing, noise control, and vibration dampening.
Electrical Equipment: Serve as insulators in electronic equipment to protect components and prevent electrical hazards.
HVAC Systems: Play a crucial role in sealing and insulating ductwork and components in heating, ventilation, and air conditioning systems.
Household Appliances: Found in washing machines and dishwashers for sealing water connections and reducing vibration and noise.