Comparison of General Use and High Performance Grades of
Viton?Unique national Oil seals cross reference.
There are three major general use grades of Viton? fluoroelastomer: A, B and F. They differ primarily in their resistance to fluids, and in particular aggressive lubricating oils and oxygenated fuels, such as methanol and ethanol automotive fuel blends. There is also a class of high performance Viton? grades: GB, GBL, GP, GLT, and GFLT. (Click here for a discussion on Viton Extreme.)
General Use Grades:
Viton A: (vinylidene fluoride and hexafluoropropylene)
Grades of Viton
Copyright for photograph
Viton? A is a family of fluoroelastomer dipolymers, that is they are polymerized from two monomers, vinylidene fluoride (VF2) and hexafluoropropylene (HFP). mechanical seal.Viton A fluoroelastomers are general purpose types that are suited for general molded goods such as o-rings and v-rings, gaskets, and other simple and complex shapes. There is a full range of Viton A grades that accomodate various manufacturing processes including transfer molding, extrusion, compression molding, and calendering.Unique national Oil seals cross reference.
Viton? B: (vinylidene, hexafluoropropylene and tetrafluoroethylene)
Viton B is a grade of fluoroelastomer terpolymers, that is they are polymerized from three monomers, vinylidene (VF2), hexafluoropropylene (HFP), and tetrafluoroethylene (TFE). Viton? B fluoroelastomers offer better fluid resistance than A type fluoroelastomer. There is a full range of Viton? B grades that accomodate a variety of manufacturing processes including compression molding, extrusion, and calendering.dust seal.
Viton F:
Viton F is a grade of fluoroelastomer terpolymers, that is they are polymerized from three monomers, vinyl fluoride (VF2), hexafluoropropylene (HFP), and tetrafluoroethylene (TFE). Viton F fluoroelastomers offer the best fluid resistance of all Viton? types. F types are particularly useful in applications requiring resistance to fuel permeation. There is a range of Viton F grades to accomodate various manufacturing requirements.
High Performance Grade:
Viton? GB, GBL:
Viton? GB and GBL are grades of fluoroelastomer terpolymers, that is they are polymerized from three monomers, vinyl fluoride (VF2), hexafluoropropylene (HFP), and tetrafluoroethylene (TFE). Viton? GB and GBL use peroxide cure chemistry that result in superior resistance to steam, acid, and aggressive engine oils. There is full range of GB and GBL types that can accommodate most rubber processing requirements including compression, transfer molding, extrusion, and calendering.
Viton GLT:
Viton GLT is a fluoroelastomer designed to retain the high heat and the chemical resistance of general use grades of Viton? fluoroelastomer, while improving the low temperature flexibility of the material. Glass transition temperatures (Tg) of materials are indicative of low temperature performance in typical elastomer applications. Viton? GLT shows an 8 to 12°C lower Tg than general use Viton? grades. There is a range of GLT products to accommodate various processing conditions.
Viton GFLT:
Viton GFLT is a fluoroelastomer designed to retain the high heat and the superior chemical resistance of the GF High Performance types,bearing seal while improving the low temperature performance of the material. Viton GFLT shows a 6 to 10°C lower Tg than general use Viton? grades. There is a range of GFLT products to accommodate various processing conditions.Unique national Oil seals cross reference.
There are three major general use grades of Viton? fluoroelastomer: A, B and F. They differ primarily in their resistance to fluids, and in particular aggressive lubricating oils and oxygenated fuels, such as methanol and ethanol automotive fuel blends. There is also a class of high performance Viton? grades: GB, GBL, GP, GLT, and GFLT. (Click here for a discussion on Viton Extreme.)
General Use Grades:
Viton A: (vinylidene fluoride and hexafluoropropylene)
Grades of Viton
Copyright for photograph
Viton? A is a family of fluoroelastomer dipolymers, that is they are polymerized from two monomers, vinylidene fluoride (VF2) and hexafluoropropylene (HFP). mechanical seal.Viton A fluoroelastomers are general purpose types that are suited for general molded goods such as o-rings and v-rings, gaskets, and other simple and complex shapes. There is a full range of Viton A grades that accomodate various manufacturing processes including transfer molding, extrusion, compression molding, and calendering.Unique national Oil seals cross reference.
Viton? B: (vinylidene, hexafluoropropylene and tetrafluoroethylene)
Viton B is a grade of fluoroelastomer terpolymers, that is they are polymerized from three monomers, vinylidene (VF2), hexafluoropropylene (HFP), and tetrafluoroethylene (TFE). Viton? B fluoroelastomers offer better fluid resistance than A type fluoroelastomer. There is a full range of Viton? B grades that accomodate a variety of manufacturing processes including compression molding, extrusion, and calendering.dust seal.
Viton F:
Viton F is a grade of fluoroelastomer terpolymers, that is they are polymerized from three monomers, vinyl fluoride (VF2), hexafluoropropylene (HFP), and tetrafluoroethylene (TFE). Viton F fluoroelastomers offer the best fluid resistance of all Viton? types. F types are particularly useful in applications requiring resistance to fuel permeation. There is a range of Viton F grades to accomodate various manufacturing requirements.
High Performance Grade:
Viton? GB, GBL:
Viton? GB and GBL are grades of fluoroelastomer terpolymers, that is they are polymerized from three monomers, vinyl fluoride (VF2), hexafluoropropylene (HFP), and tetrafluoroethylene (TFE). Viton? GB and GBL use peroxide cure chemistry that result in superior resistance to steam, acid, and aggressive engine oils. There is full range of GB and GBL types that can accommodate most rubber processing requirements including compression, transfer molding, extrusion, and calendering.
Viton GLT:
Viton GLT is a fluoroelastomer designed to retain the high heat and the chemical resistance of general use grades of Viton? fluoroelastomer, while improving the low temperature flexibility of the material. Glass transition temperatures (Tg) of materials are indicative of low temperature performance in typical elastomer applications. Viton? GLT shows an 8 to 12°C lower Tg than general use Viton? grades. There is a range of GLT products to accommodate various processing conditions.
Viton GFLT:
Viton GFLT is a fluoroelastomer designed to retain the high heat and the superior chemical resistance of the GF High Performance types,bearing seal while improving the low temperature performance of the material. Viton GFLT shows a 6 to 10°C lower Tg than general use Viton? grades. There is a range of GFLT products to accommodate various processing conditions.Unique national Oil seals cross reference.
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