Tiếng Việt
DuPont™ Kalrez® 8475 perfluoroelastomer parts are a white product that have been specifically developed to meet the challenging requirements associated with lamp anneal and RTP sealing applications in semiconductor thermal processes. It exhibits excellent thermal stability and long-term sealing performance, less IR absorption and significantly reduced outgassing properties at levated temperatures. Kalrez® 8475 has good mechanical properties and is well-suited for static and low stress/low sealing force applications (e.g., quartz tube seals, ball joint seals, bell jar seals, plenum seals). A maximum continuous service temperature of 300 °C is suggested. Ultrapure post-cleaning and packaging is standard for all 8475 parts.
Typical Physical Properties
| Color |
White |
| Hardness, Shore A (pellet) |
62 |
| Hardness, Shore M (O-ring) |
74 |
| 100% Modulus, MPa |
2.49 (361) |
| Tensile Strength at Break, MPa |
14.61 (2119) |
| Elongation at Break, % |
222 |
| Compression Set, %, 70 hr at 204 °C |
20 |
| Max. Continuous Service Temperature, °C |
300 (572) |
Product Features Contribute to Extended Seal Life
• Very low outgassing
• Excellent resistance to “dry” gas process
environments
• White color reduces IR absorption and
reduces seal temperature
• Improved (lower) compression set
• Excellent long-term seal force retention
Suggested Applications
• Quartz tube seals
• Ball joint seals
• Gas feedthrough seals
• Bell jar seals
• Plenum seals
• Other thermal applications
Ứng dụng đề xuất.
• Niêm phong ống thạch anh.
• Niêm phong khớp tròn
• Phớt chặn khí nạp
• Niêm phong chuông thủy tinh.
• Niêm phong hệ thống ống thông gió.
• Cấc ứng dụng nhiệt khác.
Typical O-Ring Compression Set Performance* (70 hr data)
|
Material Tested |
204°C | % C/S ở 250°C |
300°C |
|
Kalrez® 8475 |
20 | 30 | 45 |
| Kalrez® 4079 | 37 | 41 | 45 |
| FFKM A2 | 43 | 100 |
Sample |
DuPont™ Kalrez® 8475—Minimal Outgassing at Elevated Service Temperatures TG-MS Outgassing Analysis* (Room Temperature to 400 °C at 10 °C/min)
|
Gas Evolved |
R.T. to 100 °C, ppm | R.T. to 200 °C, ppm | R.T. to 300 °C, ppm |
R.T. to 400 °C, ppm |
|
H2O |
2 |
255 |
324 |
345 |
| HF+ |
0 |
0 | 0 |
1 |
| CF+ |
0 |
0 |
0 |
12 |
| CO2 |
0 |
0 |
2 |
3 |
| CF2 |
0 |
0 |
0 |
19 |
| CHF+ |
0 |
0 |
0 |
20 |
| CF3+ |
0 |
0 |
0 |
119 |
| C2F3 |
0 |
0 |
0 |
23 |
| CF3O+ |
0 |
0 |
0 |
0 |
| C2F4+ |
0 |
0 |
0 |
0 |
| C2F5+ |
0 |
0 |
0 |
1 |
| C3F5+ |
0 |
0 |
0 |
31 |
| Tổng khí, % |
0.00 |
0.03 |
0.03 |
0.07 |
| Khối lượng mất, % |
0.00 |
0.00 |
0.01 |
0.07 |
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/.
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