Copyright © Kingseal Co. Ltd. Thailand 2010. All Rights Reserved.
Kalrez® perflouroelastomer parts are available in a number of different compounds that are formulated to optimize
properties and give the best possible performance in various applications. Modifications of the finished properties is
achived by the use of fillers and other additives.
Physical Properties and Compound Comparisons
Compound
Resistance to:

6375

7075

4079
Aromatic / Aliphatic Oils A A A
Acids A A+ A
Bases A B B
Alcohols A A A
Aldehydes A A B
Amines A C X
Ethers A A A
Esters A A A
Ketones A A A
Steam / Hot Water A+ B C
Oxidizers B B B
Ethylene Oxide (Pure) A B X
Available in AS and JIS Standard sizes.

Source: Dupont
Kalrez® is a registered Trademark of Dupont
Kalrez
®
Typical Physical Properties
 
   Standard
Specialty
 
6375
7075
4079
1050LF
1058
3018
2037
Max Temperature           °C
                                        °F
275
527
327
620
316
600
288
550
260
500
288
550
220
428
Durometer Hardness Shore
A, point °5
75
75
75
82
65
91
79
100% Modulus                 psi
                                      MPa
1050
7.24
1100
7.58
1050
7.24
1800
12.4
675
4.65
2450
16.88
900
6.2
Tensile Strenght at Break
                                                    psi
                                      MPa
2200
  15.16
2600
17.91
2450
16.88
2700
18.6
1300
8.96
3150
21.7
2450
16.88
Elogation at Break %
160
160
150
125
180
125
200
Compression Set %
70 hrs at 204°C (400°F)
25
12
25
35
40
37
27
Tr10, °C (°F)
-3 (26)
-4 (24)
-2 (28)
-4 (28)
-
5 (41)
3 (37)