Images consistent with Gaskets, Carburator, Mechanical, Gasket, Grommet, Silicon, Nitrile, Rubber, Ring, Neoprene, Custom and Metal.

 

Summary of Gaskets, Carburator, Mechanical, Gasket, Grommet, Silicon, Nitrile, Rubber, Ring, Neoprene, Custom, Metal

Elastomers for Diaphragms

Dia•Com has developed an extensive inventory of rubber compound formulations to meet the demands of a wide range of rolling diaphragm applications, and maintains a full-time Rubber Chemist on-staff, constantly working to develop rubber formulations to meet the demands of an ever-changing industry.

Dia•Com works with all types of rubber materials, such as, Nitrile, EPDM, Neoprene, Fluorosilicone, Silicone, SBR, Fluoroelastomers (Viton®), Hydrin and Vamac®. Specialty compounds have been developed that include FDA grade, chloramine resistant compounds NSF 61 approved , and UL-157 and EN-549 approved for use in propane.

View our approval on the NSF web site http://www.nsf.com/Certified/PwsComponents/Listings.asp?Company=1C310&Standard=061

View our UL 157 JMST2 certificates:

View our UL 157 JMLU2 certificate:

View EN-549 ceritficate:         English           Deutsche

Rubber has a variety of physical properties, such as, tensile strength, elongation, modulus, compression set, and tear resistance, as well as chemical compatibility. All of these properties must be considered when selecting a rubber to be used in a rolling diaphragm. Contact a Dia•Com representative for proper rubber selection.

Chemical Compatibility Tables

Physical Properties

Elastomer Type
(ASTM Designation)

Butyl
(
IIR)

Ethylene
Propylene
(
EPDM)

Fluoro-
Carbon
(
FKM)

Fluoro-
Silicone
(
FVMQ)

Hydrin
(
CO/ECO)

Neoprene
(
CR)

Nitrile
(
NBR)

Silicone
(
VMQ)

Styrene
Butadyene
(
SBR)

Compression Set Resistance


Good


Fair


Good-Excel


Fair-Good


Fair-Good


Fair-Good


Good


Good-Excel


Good


Durometer Range (Shore A)


30-100


30-90


50-95


35-80


30-95


40-95


20-90


25-90


40-100


Elongation %


300-800


200-800


100-450


100-500


300-400


650-850


400-600


90-900


400-550


Tensile Strength (PSI)


2,000+


1,500-3,000


1,500-3,000


350-850


1,500-2,000


2,000-3,000


1,000-3,500


600-1,500


2,000+


Nitrogen Permeability Resistance


Excellent


Good


Excellent


Poor


Excellent


Fair


Good


Poor


Fair


Resilience


Excellent


Good


Fair


Good


Good


Excellent


Good


Poor-Excel


Good

Mechanical Resistance Properties

Elastomer Type
(ASTM Designation)

Butyl
(
IIR)

Ethylene
Propylene
(
EPDM)

Fluoro-
Carbon
(
FKM)

Fluoro-
Silicone
(
FVMQ)

Hydrin
(
CO/ECO)

Neoprene
(
CR)

Nitrile
(
NBR)

Silicone
(
VMQ)

Styrene
Butadyene
(
SBR)

Abrasion


Good


Good


Good


Fair


Fair-Good


Good


Excellent


Poor-Excel


Excellent


Electrical Properties-Insulating


Good


Excellent


Fair


Excellent


Poor-Fair


Fair


Fair


Excellent


Excellent


Electrical Properties-Conductive


Fair


Poor


Excellent


Poor


Excellent


Fair


Fair


Poor


Poor


Impact


Good


Good


Poor-Good


Fair


Good


Good


Fair


Poor-Good


Excellent


Tear


Good


Poor


Poor-Good


Fair


Good


Good


Good


Poor-Good


Fair

Temperature Resistance Properties

Elastomer Type
(ASTM Designation)

Butyl
(
IIR)

Ethylene
Propylene
(
EPDM)

Fluoro-
Carbon
(
FKM)

Fluoro-
Silicone
(
FVMQ)

Hydrin
(
CO/ECO)

Neoprene
(
CR)

Nitrile
(
NBR)

Silicone
(
VMQ)

Styrene
Butadyene
(
SBR)

Cold Termperature Flexibility


Good


Good


Fair-Good


Good


Good


Fair


Good


Excellent


Good


Flame Retardance


Poor


Poor-Fair


Excellent


Outstanding


Fair


Good


Poor-Fair


Fair-Poor


Poor


Heat Aging


Good


Excellent


Outstanding


Outstanding


Excellent


Good


Good


Excellent


Good

Environmental Resistance Properties

Elastomer Type
(ASTM Designation)

Butyl
(
IIR)

Ethylene
Propylene
(
EPDM)

Fluoro-
Carbon
(
FKM)

Fluoro-
Silicone
(
FVMQ)

Hydrin
(
CO/ECO)

Neoprene
(
CR)

Nitrile
(
NBR)

Silicone
(
VMQ)

Styrene
Butadyene
(
SBR)

Ozone


Good


Excellent


Outstanding


Outstanding


Excellent


Excellent


Poor


Excellent


Poor


Radiation


Fair-Good


Poor


Fair-Good


Good-Excel


Fair


Fair-Good


Fair-Good


Fair-Excel


Good


Weather


Excellent


Excellent


Excellent


Outstanding


Good


Excellent


Good


Excellent


Fair

Chemical Resistance Properties

Elastomer Type
(ASTM Designation)

Butyl
(
IIR)

Ethylene
Propylene
(
EPDM)

Fluoro-
Carbon
(
FKM)

Fluoro-
Silicone
(
FVMQ)

Hydrin
(
CO/ECO)

Neoprene
(
CR)

Nitrile
(
NBR)

Silicone
(
VMQ)

Styrene
Butadyene
(
SBR)

Acid-Dilute Concentration


Fair


Good-Excel


Fair-Good


Good-Excel


Fair-Good


Good-Excel


Fair-Good


Fair-Good


Fair-Good


Aliphatic Hydrocarbons


Poor


Poor


Excellent


Excellent


Excellent


Good


Excellent


Poor-Fair


Poor


Alkali-Dilute Concentration


Fair-Good


Good-Excel


Good-Excel


Good-Excel


Fair-Good


Good-Excel


Good-Excel


Good-Excel


Fair-Good


Aromatic Hydrocarbons


Poor


Poor


Excellent


Good-Excel


Excellent


Fair


Fair-Good


Poor


Poor


ATF Type A


Poor


Poor


Excellent


Excellent


Good


Good


Excellent


Good


Poor


Chlorinated Hydrocarbons


Poor


Poor


Excellent


Good-Excel


Good-Excel


Poor


Fair-Good


Poor


Poor


Diesel Oil


Poor


Poor


Excellent


Good


Excellent


Fair


Good-Excel


Poor


Poor


Diester Lubricants


Poor


Poor


Excellent


Excellent


Good


Poor


Fair-Good


Poor


Poor


EP Lubricants


Poor


Poor


Excellent


Excellent


Poor


Poor-Fair


Fair


Good


Poor


Ethyl Alcohol


Fair


Good-Excel


Excellent


Excellent


Good


Excellent


Good


Excellent


Fair


Ethylene Glycol


Excellent


Excellent


Excellent


Excellent


Excellent


Excellent


Excellent


Excellent


Good


Ethylene Glycol/Water


Fair-Good


Good


Good


Good


Fair


Good


Good


Excellent


Good


Gasoline


Poor


Poor


Excellent


Excellent


Good-Excel


Fair


Good-Excel


Poor


Poor


Hydraulic Fluids-Petroleum Base


Poor


Poor


Excellent


Excellent


Excellent


Poor-Fair


Fair-Good


Poor


Poor


Hydraulic Fluids-Silicate Ester


Fair


Poor


Excellent


Outstanding


Fair-Good


Good


Good


Poor


Poor-Fair


Hydraulic Fluids-Phosphate Ester


Good


Good


Poor


Poor


Poor


Fair


Poor


Good


Poor


Ketones


Good


Fair-Excel


Poor


Poor


Fair


Fair


Poor


Fair-Good


Good


Lubricating Oils-High Aniline


Fair


Poor


Excellent


Excellent


Excellent


Good


Good-Excel


Good


Poor


Lubricating Oils-Low Aniline


Good


Poor


Excellent


Excellent


Excellent


Fair


Fair-Excel


Poor-Fair


Poor


Silicone Oil


Good


Excellent


Excellent


Excellent


Excellent


Excellent


Good


Poor


Good


Steam-Above 250°F (121°C)


Poor-Fair


Excellent


Fair


Poor-Fair


Poor


Fair


Fair


Poor-Fair


Poor-Fair


Water-212°F (100°C)


Good


Excellent


Excellent


Excellent


Good


Good


Excellent


Excellent


Excellent

 

Related Phrases:

  • diaphragm goods, membrane rubber

 

 

Dia•Com is a leading international provider of innovative, cost-effective molded diaphragm solutions critical to the operation of essential systems and equipment in industrial, automotive, aerospace, medical instrumentation, and food and water processing applications. The company's reputation for excellence is based on superior quality in the design, manufacture and application of its high-performance, state-of-the-art, fabric-reinforced and homogeneous elastomeric diaphragm seals.

fabric diaphragms | coated fabric diaphragms | elastomer diaphragms

home | diaphragm products | elastomer & fabric diaphragm data | diaphragm engineering | diaphragm markets
diaphragm software | about | quality | download catalog | news & events | contact | diaphragm glossary | inquiry | sitemap

Diagram of Gaskets, Carburator, Mechanical, Gasket, Grommet, Silicon, Nitrile, Rubber, Ring, Neoprene, Custom, Metal, Accumulator Diaphragm, Diaphragm Metering Pump, EPDM Gaskets, Molded Gaskets, Rubber Gaskets and Seals.
web development