Neoprene Diaphragm N Buna

Neoprene Diaphragm

Material: Neoprene (Polychloroprene)

Key Properties:

• Chemical Resistance: Good resistance to chemicals, oils, and solvents.
• Temperature Range: -40°C to 120°C (-40°F to 248°F).
• Weather Resistance: Excellent resistance to ozone, sunlight, and weathering.
• Durability: Good physical toughness and abrasion resistance.
• Applications: Commonly used in automotive, industrial, and marine environments, as well as for HVAC systems and diaphragms in pumps and valves.

Buna-N Diaphragm

Material: Buna-N (Nitrile Butadiene Rubber, NBR)

Key Properties:

• Chemical Resistance: Excellent resistance to petroleum-based oils and fuels, as well as hydraulic fluids.
• Temperature Range: -40°C to 108°C (-40°F to 226°F).
• Abrasion Resistance: Good abrasion and tear resistance.
• Flexibility: Maintains flexibility over a wide range of temperatures.
• Applications: Commonly used in automotive, aerospace, and oil & gas industries, especially where oil resistance is crucial.

Summary of Differences

• Chemical Resistance: Neoprene is more resistant to a broader range of chemicals, while Buna-N is specifically resistant to petroleum-based oils and fuels.
• Temperature Tolerance: Neoprene has a slightly higher maximum temperature tolerance compared to Buna-N.
• Weather Resistance: Neoprene offers better resistance to ozone, sunlight, and weathering.
• Applications: Buna-N is preferred in applications involving petroleum oils and fuels, while Neoprene is used where exposure to a variety of chemicals and weathering conditions is expected.