Company logo
product
Kalrez® Spectrum™ 6375
Search:

Kalrez® Spectrum™ 6375

Kalrez® Spectrum™ 6375 is designed to give outstanding performance in the widest possible range of chemicals and temperatures. Mixed streams, once a problem for many chemical processors, can now be handled by 6375, furthermore, the curing system also allows for a maximum service temperature of 275°C (525 °F) which translates to increased chemical resistance over all temperature ranges, especially if high temperature process excursions occur. This combination of chemical and thermal resistance provides advantages for chemical processors. Kalrez® Spectrum™ 6375 is a carbon black-filled product for general use in O-rings, seals, diaphragms and other parts specifically for the chemical process industry. This product has excellent broad chemical resistance, good mechanical properties, and outstanding hot-air aging properties. Kalrez® Spectrum™ 6375 is well suited for use in mixed process streams because of its excellent resistance to acids, bases, and amines. It is also recommended for use in hot water, steam, pure ethylene oxide and propylene oxide.
Product Resources

Knowde Enhanced TDS

Expand All

+

Identification & Functionality

+

Features & Benefits

+
Product Highlights
  • Kalrez® Spectrum™ 6375 is a carbon black-filled product for general use in O-rings, seals, diaphragms and other parts specifically for the chemical process industry.
  • This product has excellent broad chemical resistance, good mechanical properties, and outstanding hot-air aging properties.
  • Kalrez® Spectrum™ 6375 is well suited for use in mixed process streams because of its excellent resistance to acids, bases, and amines. It is also recommended for use in hot water, steam, pure ethylene oxide and propylene oxide.

Applications & Uses

+

Properties

+
Typical Properties
ValueUnitsTest Method / Conditions
Compression Set - Pellets (70 hr at 204 °C (400 °F))24%ASTM D395B (Pellet test specimens)
Compression Set (70 hr, 204°C, 400°F)24-ASTM D395B
Compression Set - O-rings (70 hr at 204 °C (400 °F))25%ASTM D395B, D1414 (AS568 K214 O-ring test specimens)
Lowest Service Temperature–20 (–4)°C (°F)-
ColorBlack--
Hardness75Shore AASTM D2240
Hardness - Shore A75-ASTM D2240
Maximum Service Temperature275 (527)°C (°F)-
Elongation at Break160%ASTM D412
100% Modulus9.11 (1321)MPa (psi)ASTM D412
Tensile Strength at Break15.16 (2200)MPa (psi)ASTM D412
Color
Black
Chemical Resistance

For many applications, low volume swell of elastomers is critical to proper operation of equipment. Excessive swell may cause permanent seal failure due to equipment hang \up, extrusion, etc. The following data is the result of lab testing to determine the volume swell of Kalrez® Spectrum™ 6375 when exposed to various fluids. Other physical property testing is needed to further define product performance; however, volume swell is an excell ent predictor of performance. The following chemicals represent some of themost aggressive applications in the industry. These test results are an indication of the performance of compound 6375; however, all applications are unique, and it is strongly recommended that immersion testing be performed in the actual process fluids.

Chemical

Temperature°C (°F)

Kalrez® Spectrum™ 6375 Rating

Nearest Competitive FFKM

Water

225 (437)

A C
Glacial acetic acid

100 (212)

A A
Nitric acid (70%)

85 (185)

B C
Sulfuric acid (98%)

150 (302)

A C
Maleic acid

90 (194)

A B
Ammonium hydroxide

100 (212)

B B
Ethylene oxide

50 (122)

A A
Urea

175 (347)

A B
Epichlorohydrin

100 (212)

A A
Butyraldehyde

70 (158)

A B
Toluene diisocyanate

100 (212)

A B
HCFC 134a

25 (77)

A A

Rating system:

A = 0 - 10% volume swell

B = 10 - 20% volume swell

C = >20% volume swel

Technical Details & Test Data

+
Thermal Resistance

Kalrez® Spectrum™ 6375 has excellent heat resistance to go along with its outstanding chemical resistance. Its proprietary curing technology allows this product to have a maximum service temperature of 275°C (525°F). One method of predicting heat resistance is compression set. This is defined as: the amount by which a standard test piece (typically an O-ring or pellet) fails to return to its original thickness after being subjected to a standard compressive load or deflection for a fixed period of time. This chart following shows some elastomer comparisons with regard to compression set resistance.

Compression Set vs. Time at 204°C (400°F)

DuPont Kalrez Spectrum 6375 Thermal Resistance

Documents (31)

Document Name
Type
Products
Technical Data Sheet
Kalrez® Spectrum™ 6375
Technical Data Sheet
Products: Kalrez® Spectrum™ 6375
Brochure
Kalrez® 1050LF, Kalrez® 3018, Kalrez® 3035, Kalrez® 3065, Kalrez® 4079, Kalrez® 6190, Kalrez® 6221, Kalrez® 6375UP, Kalrez® 7075UP, Kalrez® 8002, Kalrez® 8085, Kalrez® 9100, Kalrez® 9300, Kalrez® 9600, Kalrez® AeroSeal™ 7777, Kalrez® AS-568, Kalrez® Bonded Door Seals, Kalrez® LS390, Kalrez® Metric O-rings, Kalrez® MS220, Kalrez® Seals, Kalrez® Spectrum™ 0040, Kalrez® Spectrum™ 6375, Kalrez® Spectrum™ 6380, Kalrez® Spectrum™ 7090, Kalrez® Spectrum™ 7275, Kalrez® TriLobe™ Seals, Kalrez® 0090, Kalrez® Spectrum™ 4001, Kalrez® 4079AMS, Kalrez® 6230, Kalrez® 8705, Kalrez® 8900, Kalrez® 9500, Kalrez® AeroSeal™ 7800, Kalrez® CP222, Kalrez® LS205, Kalrez® Spectrum™ 7375, Kalrez® KVSP™, Kalrez® V-Rings, Kalrez® PV8070, Kalrez® 8475, Kalrez® 8575, Kalrez® Spectrum™ 7075, Kalrez® W240, Kalrez® AeroSeal® 7797
Brochure
Products: Kalrez® 1050LF, Kalrez® 3018, Kalrez® 3035, Kalrez® 3065, Kalrez® 4079, Kalrez® 6190, Kalrez® 6221, Kalrez® 6375UP, Kalrez® 7075UP, Kalrez® 8002, Kalrez® 8085, Kalrez® 9100, Kalrez® 9300, Kalrez® 9600, Kalrez® AeroSeal™ 7777, Kalrez® AS-568, Kalrez® Bonded Door Seals, Kalrez® LS390, Kalrez® Metric O-rings, Kalrez® MS220, Kalrez® Seals, Kalrez® Spectrum™ 0040, Kalrez® Spectrum™ 6375, Kalrez® Spectrum™ 6380, Kalrez® Spectrum™ 7090, Kalrez® Spectrum™ 7275, Kalrez® TriLobe™ Seals, Kalrez® 0090, Kalrez® Spectrum™ 4001, Kalrez® 4079AMS, Kalrez® 6230, Kalrez® 8705, Kalrez® 8900, Kalrez® 9500, Kalrez® AeroSeal™ 7800, Kalrez® CP222, Kalrez® LS205, Kalrez® Spectrum™ 7375, Kalrez® KVSP™, Kalrez® V-Rings, Kalrez® PV8070, Kalrez® 8475, Kalrez® 8575, Kalrez® Spectrum™ 7075, Kalrez® W240, Kalrez® AeroSeal® 7797
Brochure
Kalrez® 4079, Kalrez® Spectrum™ 6375, Kalrez® Spectrum™ 7075
Brochure
Products: Kalrez® 4079, Kalrez® Spectrum™ 6375, Kalrez® Spectrum™ 7075
Brochure
Kalrez® 1050LF, Kalrez® 3018, Kalrez® 3035, Kalrez® 3065, Kalrez® 4079, Kalrez® 6190, Kalrez® 6221, Kalrez® 6375UP, Kalrez® 7075UP, Kalrez® 8002, Kalrez® 8085, Kalrez® 9100, Kalrez® 9300, Kalrez® 9600, Kalrez® AeroSeal™ 7777, Kalrez® AS-568, Kalrez® Bonded Door Seals, Kalrez® LS390, Kalrez® Metric O-rings, Kalrez® MS220, Kalrez® Seals, Kalrez® Spectrum™ 0040, Kalrez® Spectrum™ 6375, Kalrez® Spectrum™ 6380, Kalrez® Spectrum™ 7090, Kalrez® Spectrum™ 7275, Kalrez® TriLobe™ Seals, Kalrez® 0090, Kalrez® Spectrum™ 4001, Kalrez® 4079AMS, Kalrez® 6230, Kalrez® 8705, Kalrez® 8900, Kalrez® 9500, Kalrez® AeroSeal™ 7800, Kalrez® CP222, Kalrez® LS205, Kalrez® Spectrum™ 7375, Kalrez® KVSP™, Kalrez® V-Rings, Kalrez® PV8070, Kalrez® 8475, Kalrez® 8575, Kalrez® Spectrum™ 7075, Kalrez® W240, Kalrez® AeroSeal® 7797
Brochure
Products: Kalrez® 1050LF, Kalrez® 3018, Kalrez® 3035, Kalrez® 3065, Kalrez® 4079, Kalrez® 6190, Kalrez® 6221, Kalrez® 6375UP, Kalrez® 7075UP, Kalrez® 8002, Kalrez® 8085, Kalrez® 9100, Kalrez® 9300, Kalrez® 9600, Kalrez® AeroSeal™ 7777, Kalrez® AS-568, Kalrez® Bonded Door Seals, Kalrez® LS390, Kalrez® Metric O-rings, Kalrez® MS220, Kalrez® Seals, Kalrez® Spectrum™ 0040, Kalrez® Spectrum™ 6375, Kalrez® Spectrum™ 6380, Kalrez® Spectrum™ 7090, Kalrez® Spectrum™ 7275, Kalrez® TriLobe™ Seals, Kalrez® 0090, Kalrez® Spectrum™ 4001, Kalrez® 4079AMS, Kalrez® 6230, Kalrez® 8705, Kalrez® 8900, Kalrez® 9500, Kalrez® AeroSeal™ 7800, Kalrez® CP222, Kalrez® LS205, Kalrez® Spectrum™ 7375, Kalrez® KVSP™, Kalrez® V-Rings, Kalrez® PV8070, Kalrez® 8475, Kalrez® 8575, Kalrez® Spectrum™ 7075, Kalrez® W240, Kalrez® AeroSeal® 7797
Brochure
Kalrez® 1050LF, Kalrez® 3018, Kalrez® 3035, Kalrez® 3065, Kalrez® 4079, Kalrez® 6190, Kalrez® 6221, Kalrez® 6375UP, Kalrez® 7075UP, Kalrez® 8002, Kalrez® 8085, Kalrez® 9100, Kalrez® 9300, Kalrez® 9600, Kalrez® AeroSeal™ 7777, Kalrez® AS-568, Kalrez® Bonded Door Seals, Kalrez® LS390, Kalrez® Metric O-rings, Kalrez® MS220, Kalrez® Seals, Kalrez® Spectrum™ 0040, Kalrez® Spectrum™ 6375, Kalrez® Spectrum™ 6380, Kalrez® Spectrum™ 7090, Kalrez® Spectrum™ 7275, Kalrez® TriLobe™ Seals, Kalrez® 0090, Kalrez® Spectrum™ 4001, Kalrez® 4079AMS, Kalrez® 6230, Kalrez® 8705, Kalrez® 8900, Kalrez® 9500, Kalrez® AeroSeal™ 7800, Kalrez® CP222, Kalrez® LS205, Kalrez® Spectrum™ 7375, Kalrez® KVSP™, Kalrez® V-Rings, Kalrez® PV8070, Kalrez® 8475, Kalrez® 8575, Kalrez® Spectrum™ 7075, Kalrez® W240, Kalrez® AeroSeal® 7797
Brochure
Products: Kalrez® 1050LF, Kalrez® 3018, Kalrez® 3035, Kalrez® 3065, Kalrez® 4079, Kalrez® 6190, Kalrez® 6221, Kalrez® 6375UP, Kalrez® 7075UP, Kalrez® 8002, Kalrez® 8085, Kalrez® 9100, Kalrez® 9300, Kalrez® 9600, Kalrez® AeroSeal™ 7777, Kalrez® AS-568, Kalrez® Bonded Door Seals, Kalrez® LS390, Kalrez® Metric O-rings, Kalrez® MS220, Kalrez® Seals, Kalrez® Spectrum™ 0040, Kalrez® Spectrum™ 6375, Kalrez® Spectrum™ 6380, Kalrez® Spectrum™ 7090, Kalrez® Spectrum™ 7275, Kalrez® TriLobe™ Seals, Kalrez® 0090, Kalrez® Spectrum™ 4001, Kalrez® 4079AMS, Kalrez® 6230, Kalrez® 8705, Kalrez® 8900, Kalrez® 9500, Kalrez® AeroSeal™ 7800, Kalrez® CP222, Kalrez® LS205, Kalrez® Spectrum™ 7375, Kalrez® KVSP™, Kalrez® V-Rings, Kalrez® PV8070, Kalrez® 8475, Kalrez® 8575, Kalrez® Spectrum™ 7075, Kalrez® W240, Kalrez® AeroSeal® 7797