Product Details
Custom Perfluoroelastomer Seals
Perfluoroelastomer (FFKM) Product Technical Data Sheet
Product Name:Perfluoroelastomer (FFKM)Product Model:CND-FFKM9000 SeriesVersion:V1.0Published:2024 12
1. Product Overview
Perfluoroelastomer (FFKM) is a high-performance elastomer copolymerized from tetrafluoroethylene, perfluoroalkyl vinyl ether, and a small amount of monomers with vulcanization sites. This material offers exceptional chemical resistance, thermal stability, and mechanical properties, making it ideal for extreme operating environments.
2. Chemical Composition
● Base Polymer:Tetrafluoroethylene/perfluoroalkyl vinyl ether copolymer
● Curing System:Polyphenol Sulfur Curing System
● Filler:High-purity inorganic fillers
● Additives:Specialty Functional Additives
3. Physical Properties
Performance Metrics | Test Method | Typical Value |
Hardness (Shore A) | ASTM D2240 | 75±5 |
Tensile Strength (MPa) | ASTM D412 | ≥12.0 |
Elongation at Break (%) | ASTM D412 | ≥200 |
Tear Strength (kN/m) | ASTM D624 | ≥25.0 |
Compression Set (%) | ASTM D395B | ≤25 (200°C × 70h) |
4. Thermal Performance
Performance Metrics | Test Method | Typical Value |
Continuous operating temperature | - | -25°C to +325°C |
Short-term temperature limit | - | +350℃ (≤100h) |
Glass Transition Temperature (Tg) | ASTM D3418 | -15°C to +10°C |
Coefficient of Thermal Expansion (×10⁻⁶/°C) | ASTM E831 | 180-220 |
5. Chemical Resistance
Excellent Tolerability:
● Strong acids (sulfuric acid, nitric acid, hydrochloric acid)
● Strong Alkalis (Sodium Hydroxide, Potassium Hydroxide)
● Organic solvents (ketones, esters, aromatic hydrocarbons)
● Oxidizers (hydrogen peroxide, ozone)
● Halogen gas
Tolerance Level:
● 98% Sulfuric Acid: Grade A (No Change)
● 30% Sodium Hydroxide: Grade A (No Change)
● Acetone: Grade A (No change)
● Toluene: Grade A (No change)
6. Sealing Performance
Performance Metrics | Test Method | Typical Value |
Low-temperature flexibility (°C) | ASTM D1329 | -25℃ |
Gas Permeability (cm³/cm²·24h·atm) | ASTM D1434 | ≤0.5 |
Water Vapor Transmission Rate (g/m²·24h) | ASTM F1249 | ≤5.0 |
7. Electrical Performance
Performance Metrics | Test Method | Typical Value |
Volume Resistivity (Ω·cm) | ASTM D257 | ≥10¹⁵ |
Dielectric Strength (kV/mm) | ASTM D149 | ≥15.0 |
Dielectric Constant (1 kHz) | ASTM D150 | 2.1-2.3 |
8. Application Areas
Semiconductor Manufacturing:
● Etching equipment sealing
● CVD/PVD Chamber Sealing
● High-purity chemical transfer
Chemical Industry:
● Reactor sealing
● Pump Valve Sealing
● Pipe joint sealing
Oil & Gas:
● Wellhead Equipment Sealing
● Acid Fracturing Equipment
● Marine Platform Equipment
Aerospace:
● Fuel System Seal
● Hydraulic System Sealing
● Engine sealing
9. Manufacturing Process
Molded:
● Mold Temperature: 170-180°C
● Curing time: 10-15 min/mm
● Pressure: 100-150T
Injection Molding:
● Barrel Temperature: 80-100°C
● Mold Temperature: 160-180°C
● Injection Pressure: 80-120 MPa
10. Storage Conditions
● Storage Temperature:-10°C to +30°C
● Relative Humidity:≤70%RH
● Shelf Life:24 months (uncured)
● Notes:Keep out of direct sunlight and away from heat sources.
11. Quality Assurance
This product meets the following standards:
● ASTM D2000-23
● ISO 3302-1:2014
● ISO 2768-1:2014
● RoHS 2011/65/EU
Product Technical Documentation
Download full product manual and technical documentation
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