Fluorosilicone Rubber Sheets (FVMQ) and Uncured Compound
Made in USA Fluorosilicones with AS9100 Quality
Fluorosilicone rubber sheets (FVMQ) and uncured compound from ElastaPro combine the flexibility and resilience of silicone with added resistance to fuels, oils, solvents, and harsh chemicals.
These solid materials are available in a range of durometers and deliver stable sealing performance across a wide temperature range and resist swelling in hydrocarbons.
Some products meet AMS-R-25988, MIL-DTL-25988, and AMS specifications for aerospace and defense.
Every batch is Made in USA under ElastaPro’s ISO 9001:2015 / AS9100D quality system and shipped with a complete Certificate of Analysis (COA).
FVMQ Rubber Products, Durometers & Specs
Use the table below to find the FVMQ rubber products that you need. Our AMS-R-25988 fluorosilicones were recently requalified by an independent laboratory. Test results are available to qualified buyers.
| Product | Durometer | Specifications |
|---|---|---|
| ESS30FS | 30 | ASTM D1418 |
| ESS40FS | 40 | AMS-R-25988 TY2 CL1 GR40 |
| ESS50FS | 50 | AMS-R-25988 TY2 CL1 GR50 ASTM D2000/J2000 Type FK |
| ESS60FS | 60 | AMS-R-25988 TY2 CL1 GR60 AMS3325 AMS3326 |
| ESS70FS | 70 | AMS-R-25988 TY 2 CL1 GR70 AMS3327 |
Fluorosilicone Sheeting: Technical Data Sheets
Click the buttons below to see data sheets for our 30, 40, 50, 60, and 70 durometer fluorosilicones.
Need Fluorosilicone Sheet or Slit Rolls?
We manufacture pre-cut sheets, continuous rolls, and uncured compounds with low minimums and fast lead times.
Request a Quote (RFQ)Fluorosilicone Sheet Sizes & Roll Dimensions
Solid sheet materials from ElastaPro are available in these sizes and roll dimensions.
| Measurement | Type | Imperial | Metric |
|---|---|---|---|
| Width | Standard | 36" | 914 mm |
| Width | Standard | 48" | 1219 mm |
| Width | Custom | Up to 67" | Up to 1701.8 mm |
| Thickness | Range | 0.020" to 0.375" | 0.508 mm to 9.525 mm |
| Cut Sheet | Standard | 12″ × 12" | 30.48 cm x 30.48 cm |
| Cut Sheet | Standard | 24″ × 24″ | 60.96 cm x 60.96 cm |
| Cut Sheet | Standard | 36″ × 36″ | 91.44 cm x 91.44 cm |
| Cut Sheet | Standard | 48" x 48" | 121.92 cm x 121.92 cm |
| Cut Sheet | Custom | — | — |
| Linear Length | Continuous | Up to 300" ft | Up to 91.44 m |
Made-to-order materials have a minimum order quantity (MOQ) of 30 linear feet.
Fluorosilicone Uncured Compound and Catalysts
ElastaPro uses peroxide catalysts with our uncured fluorosilicone compounds and offers a variety of peroxide options to choose from. The best catalyst for your application depends on your fabrication method. In other words, it matters whether you plan to mold or extrude fluorosilcone parts.
As your FVMQ supplier, ElastaPro can match the catalyst to your specific application based on your answers to these questions:
- Will you use compression molding, transfer molding, or extrusion?
- What cure temperature and time will you target?
- Will you apply pressure during this process
Standard Silicone vs. Fluorosilicone Rubber
Use the table below to compare standard silicone (VMQ) to fluorosilicone rubber (FVMQ).
| Property / Feature | Standard Silicone Rubber (VMQ) | Fluorosilicone Rubber (FVMQ) |
|---|---|---|
| Chemical Structure | Standard siloxane backbone | Fluorinated side chains on the polymer backbone |
| Operating Temperature | -80°F to +450°F (-62°C to +232°C) | -76°F to +392°F (-60°C to +200°C) |
| Atmospheric & Weather Resistance | Exceptional | Exceptional (inherits VMQ properties) |
| Hydrocarbon & Fuel Resistance | Poor: Absorbs fluid, leading to volume swell, softening, and rapid seal failure | Superior: Actively repels non-polar solvents, fuels, and oils |
| Approved Fluid Submersions | Not recommended for fuels/oils | Aviation/military fuels (JP-4, JP-5, JP-8), petroleum oils, synthetic lubricants, engine/transmission fluids, chlorinated/aromatic solvents |
| Primary Function | High/low-temperature sealing in non-chemical environments | Inert chemical barrier for hostile chemical and fluid environments |
Ensure Sealing Integrity Against Harsh Fluids and Oils
Prevent Premature Seal Failure
Get our comprehensive compatibility guide to review complete chemical resistance data for our standard-compliant solid and cellular silicone sheeting.
Download NowFluorosilicone Sheeting FAQs
What is the difference between fluorosilicone and flourosilicone?
Fluorosilicone is the correct technical name for fluorinated silicone rubber (FVMQ). “Flourosilicone” and “fluoro silicone” are common alternate spellings and spacing variations used interchangeably across engineering documents and purchasing catalogs. They all refer to the exact same polymer formulation.
What is the primary benefit of fluorosilicone rubber over standard silicone?
While both elastomers withstand extreme cold and heat (-76°F to +392°F), standard silicone swells and degrades when exposed to petroleum products. Fluorosilicone features fluorinated side chains that actively repel fuels, jet propellants, oils, and harsh solvents.
What military and aerospace specs does ElastaPro fluorosilicone comply with?
Our material lineup conforms to AMS-R-25988B Type II Class 1, MIL-DTL-25988D Type II Class 1, AMS 3325, AMS 3326, and AMS 3327 across 40, 50, 60, and 70 Shore A durometers.
Can fluoro silicone sheeting be supplied in custom widths and colors?
Yes. While standard fluorosilicone rubber sheeting is supplied in blue continuous rolls up to 65” wide, ElastaPro offers custom color matching, specific thickness slicing, and custom roll slitting to meet your exact die-cutting requirements.
How and where is fluoro silicone used?
Due to its dual resistance to extreme temperatures and aggressive media, fluorosilicone rubber sheet material is widely specified across demanding industrial sectors:
- Aerospace & Defense: Fuel tank access panel seals, canopy gaskets, firewall access barriers, and O-rings.
- Automotive & Transportation: Turbocharger diaphragms, exhaust gas recirculation (EGR) valve seals, and quick-connect fuel line gaskets.
- Industrial Fluid Processing: Chemical blending valve seats, solvent recovery system seals, and fuel storage gaskets.