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DuPont Kalrez LS390 perfluoroelastomer parts are a grey product for use as sanitary seals in food handling, beverage, and pharmaceutical applications where FDA, USP <87> and <88> Class VI compliance are required.
In addition, DuPont Kalrez LS390 parts also meet Japan Pharmacopeia, edition 16*. Typical problems experienced in sanitary seal applications are usually related to thermal and chemical resistance challenges, compression set (permanent deformation) and high static friction (stiction).
These factors can cause intrusion in the production line or dead space, which increases the risk of contamination or leakage unless seals are continually tightened. DuPont Kalrez LS390 has been designed to address these issues by offering high hardness properties, low stiction, temperature resistance up to 220°C (428°F) and excellent chemical resistance (Tables 1 and 2) to process chemicals, WFI (water for injection), as well as SIP and/or CIP processes.
These properties, enable increased MTBR (Mean Time Between Repair). Because of its unique grey color, LS390 parts are easy to identify for proper material selection and application. For use in applications other than sanitary seals, please contact your DuPont™ Kalrez® perfluoroelastomer parts representative.
Typical Physical Properties
| Color: | Grey |
| Maximum Application Temperature2 , °C (°F) | 220 (428) |
| Durometer, Shore A3 | 88 |
| 100% Modulus, MPa | 11.16 |
| Tensile Strength at Break4 , MPa: | 18.60 |
| Elongation at Break4 , % | 147 |
| Compression Set5 , 70 hrs. at 200°C (392°F), % | 30 |
Table 1: Chemical Immersion Data6 – % Volume Swell (168 hrs. exposure)
| Chemical/Product | Temp. °C | Kalrez® LS390 | General EPDM |
| CIP AC-101™ 7 (5% diluted NaOH) | 95 | 4 | 22 |
| CIP HOROLITH V 7 (5% diluted HNO3)) | 95 | 17 | 46 |
| CIP Oxonia Active 7 (5,000 ppm Peracetic acid) | 95 | 5 | 43 |
Table 2: Chemical Immersion Data6 – % Volume Swell (502 hrs. exposure)
| Chemical/Product | Temp. °C | Kalrez® LS390 | Kalrez® LS205 |
| CIP-100 | 70 | 1 | 1 |
| CIP-200 | 70 | 1 | 1 |
| Bleach | 70 | 1 | 0 |
| Distilled water (SIP) | 13 | 6 | 8 |
Warranty for Kalrez products
• Only applies to Dupont products distributed genuine in Vietnam.
• All Kalrez products are warranted if the machine fails due to manufacturer fault.
• For warranty and product maintenance, please contact Achilles, customer service phone number: 098 469 4884 (Ms. Duc).
• Achilles is the genuine supplier of products related to Kalrez DuPont.
• For retail/whole sale pricing, bulk ordering and product information advice please contact 098 469 4884 (Ms. Duc) via info@achilles.com.vn or the website https://achilles.com.vn/
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