Fluorosilicone (FVMQ) O-Rings
Fluorosilicone (FVMQ) O-Rings
Fluorosilicone (FVMQ) contains trifluoro propyl groups next to the methyl groups. The mechanical and physical properties are very similar to Silicone (VMQ). However, Fluorosilicone (FVMQ) offers improved fuel and mineral oil resistance but poor hot air resistance when compared with VMQ.
Benefits of this highly fluoroinated material include: superior extreme low and high temperature performance, and prolonged resistance to fuels, oils, solvents and aggressive fluids. Fluorosilicone offer many of the advantages of Silicone, but with some of the performance properties of an FKM material.
Similar to Silicone, Fluorosilicone does not have strong mechanical properties. These poor physical characteristics restrict its use in dynamic applicaitons.
O-ring applications can be very demanding. GFS Engineers are available to consult on any O-ring application. Click here to contact a GFS Engineer.
Materials
FVMQ 70A
70A Durometer Blue Fluorosilicone (FVMQ) O-rings offered in a variety of import and domestic compounds. Materials in this category available for purchase include GFS FVMQ70 Blue.
AMS-R-25988 Class 3, Grade 60
AMS-R-25988 Class 3, Grade 60 is a 60A durometer Mil-Spec material for Aircraft fuels and lubricants. It's color is mandated to be blue Materials in this category available for purchase include Parker LM158-60.
AMS-R-25988 Class 1, Grade 70
AMS-R-25988 Class 1, Grade 70 is a 70A durometer Mil-Spec material for Aircraft fuels and lubricants. It's color is mandated to be blue Materials in this category available for purchase include Parker L1120-70 and Parco 1933-70.
AMS-R-25988 Class 3, Grade 75
AMS-R-25988 Class 3, Grade 75 is a 75A durometer Mil-Spec material for Aircraft fuels and lubricants. It's color is mandated to be blue Materials in this category available for purchase include Parker L1077-75.
AMS-R-25988 Class 3, Grade 80
AMS-R-25988 Class 3, Grade 80 is a 80A durometer Mil-Spec material for Aircraft fuels and lubricants. It's color is mandated to be blue Materials in this category available for purchase include Parker LM160-80 and L1218-80.
