Kalrez® Spectrum™ 7375 perfluoroelastomer parts are an innovative FFKM product based on a patented crosslinking system for chemical process industry applications where broad chemical and water/steam resistance are needed at elevated temperatures. Kalrez® Spectrum™ 7375 parts exhibit excellent compression set resistance, outstanding physical property retention, and good mechanical strength properties. A maximum application temperature of 300°C is suggested.
Polymer Name: Perfluoroelastomer (FFKM)
Physical Form: Seals
Features: Good Compressive Strength, Good Mechanical Properties, Good Retention of Properties
End Uses: Semiconductor Applications, Pump Parts
Color: Black
Start Order
SecureOrder Quantity
Price
Available upon quote
Minimum Order Quantity
Quote required
Lead Time
Quote required
Available Incoterms
Quote required
Regional Availability
Quote required
Popular DuPont Products
View All DuPont Products Kalrez® 7075UP
Kalrez® 8900
Kalrez® 4079
TypeDocument Name
Other
Kalrez® Safe Handling Guidelines (Japanese)
Kalrez® Safe Handling Guidelines (Japanese)
OtherBrochure
Kalrez® - Contamination considerations for perfluoroelastomer seals used in deposition processes
Kalrez® - Contamination considerations for perfluoroelastomer seals used in deposition processes
BrochureBrochure
Kalrez® Brochure
Kalrez® Brochure
BrochureBrochure
Perfluoroelastomer and Fluoroelastomer Seals for Photovoltaic Cell Manufacturing Processes
Perfluoroelastomer and Fluoroelastomer Seals for Photovoltaic Cell Manufacturing Processes
BrochureOther
Kalrez® Guide for Safety in Handling Kalrez® Perfluoroelastomer Parts
Kalrez® Guide for Safety in Handling Kalrez® Perfluoroelastomer Parts
OtherOther
Kalrez® Chemical Processing Product Selector Guide
Kalrez® Chemical Processing Product Selector Guide
OtherOther
Kalrez® Perfluoroelastomer Parts
Kalrez® Perfluoroelastomer Parts
OtherTechnical Data Sheet
Kalrez® Spectrum™ 7375 Technical Data Sheet
Kalrez® Spectrum™ 7375 Technical Data Sheet
Technical Data SheetBrochure
Kalrez® Spectrum™ (Spanish)
Kalrez® Spectrum™ (Spanish)
BrochureBrochure
Kalrez® Spectrum™ (French)
Kalrez® Spectrum™ (French)
BrochureBrochure
Kalrez® Perfluorelastomerteile (German)
Kalrez® Perfluorelastomerteile (German)
BrochureBrochure
Kalrez® Spectrum™ (German)
Kalrez® Spectrum™ (German)
BrochureKnowde Enhanced TDS
Identification & Functionality
Chemical Family
Polymer Name
Technologies
Product Families
Kalrez® Spectrum™ 7375 Features & Benefits
Performance Characteristics
Compression Stress Relaxation (CSR) in Water6 at 225°C (437°F), measured at 90°C (194°F)
Long-Term Compression Set in Hot Air4,8 at 260°C (500°F)
Applications & Uses
Applications
Plastics & Elastomers End Uses
Properties
Mechanical Properties
| Value | Units | Test Method / Conditions | |
| Modulus (at 100% Elongation) | 10 | MPa | ASTM D 412 |
| Tensile Strength | 16.9 | MPa | ASTM D 412 |
| Elongation (at Break) | 128 | % | ASTM D 412 |
| Hardness (Shore A) | 79 | - | ASTM D 2240 |
| Compression Set (O-Ring AS568-214, at 204°C, 70h) | 9 | % | ASTM D 1414 |
Typical Properties
| Value | Units | Test Method / Conditions | |
| Maximum Service Temperature ¹ | 300 | °C | - |
| Lowest Service Temperature ¹ | -20 | °C | - |
Thermal Properties
| Value | Units | Test Method / Conditions | |
| Glass Transition Temperature (at 10°C/min) | -2.3 | °C | ASTM D 3418 |
| Coefficient of Linear Thermal Expansion | 3.19 | E-4/°C | ISO 11359-1/-2 |
| Retraction Temperature (TR-10) | -0.3 | °C | ASTM D 1329 |
Other Properties
| Value | Units | Test Method / Conditions | |
| Density | 2 | g/cm³ | ISO 1183 |
Note
- [1]: DuPont proprietary test method; useful temperature range may vary with seal design and application specifics
Chemical Resistance
| Chemical |
Temp.°C (°F) |
Kalrez® Spectrum™7375 |
FFKM Z-1 |
FFKM A-1 |
FFKM A-26 |
FFKM B-3 |
|---|---|---|---|---|---|---|
| Steam | 225(437) | A | C | N/A | A | C |
| Nitric Acid 70% | 85(185) | A | C | C | B | C |
| Sulfuric Acid 98% | 150(302) | A | A | C | A | A |
| Butyraldehyde | 70(158) | A | C | B | B | N/A |
| Maleic Anhydride | 100(212) | A | B | N/A | A | A |
| Ammonium Hydroxide | 100(212) | B | B | A | A | A |
Rating system:
A = 0 - 10% volume swell
B = 11 - 20% volume swell
C = >20% volume swell
N/A = Test Data Not Available
Kalrez® Spectrum™ 7375
DuPont