Kalrez® Spectrum™ 6375, designed specifically for the chemical process industry, combines new polymer technology with innovative patented curing technology. Compound 6375 is designed to give outstanding performance in the widest possible range of chemicals and temperatures. This product is an excellent choice for use in acids, bases, amines, steam, ethylene oxide, and many other aggressive chemicals. The new curing system also allows for a continuous upper service temperature of 275°C (525°F). This high temperature stability 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. Today, chemical processors use several perfluoroelastomer parts, including compounds 4079. 1050LF, and 2035, to optimize chemical and thermal performance. Kalrez® Spectrum™ 6375 may be used in many applications to displace these products. However, if optimum chemical resistance is required, then applications must be individually reviewed for the optimum compound selection.

ecatalog ePart Number Compound Size AS568- Nominal Cross Section W Actual Cross Section W Actual Inside Diameter ID Nominal Inside Diameter ID Nominal Outside Diameter
4-0017516 Kalrez 6375 001 1/16 .070 +-.003 0.029 1/32 3/32
4-0027516 Kalrez 6375 002 1/16 .070 +-.003 0.042 3/64 9/64
4-0037516 Kalrez 6375 003 1/16 .070 +-.003 0.056 1/16 3/16
4-0047516 Kalrez 6375 004 1/16 .070 +-.003 0.070 5/64 13/64
4-0057516 Kalrez 6375 005 1/16 .070 +-.003 0.101 3/32 7/32
4-0067516 Kalrez 6375 006 1/16 .070 +-.003 0.114 1/8 1/4
4-0077516 Kalrez 6375 007 1/16 .070 +-.003 0.145 5/32 9/32
4-0087516 Kalrez 6375 008 1/16 .070 +-.003 0.176 3/16 5/16
4-0097516 Kalrez 6375 009 1/16 .070 +-.003 0.208 7/32 11/32
4-0107516 Kalrez 6375 010 1/16 .070 +-.003 0.239 1/4 3/8
4-0117516 Kalrez 6375 011 1/16 .070 +-.003 0.301 5/16 7/16
4-0127516 Kalrez 6375 012 1/16 .070 +-.003 0.364 3/8 1/2
4-0137516 Kalrez 6375 013 1/16 .070 +-.003 0.426 7/16 9/16
4-0147516 Kalrez 6375 014 1/16 .070 +-.003 0.489 1/2 5/8
4-0157516 Kalrez 6375 015 1/16 .070 +-.003 0.551 9/16 11/16
4-0167516 Kalrez 6375 016 1/16 .070 +-.003 0.614 5/8 3/4
4-0177516 Kalrez 6375 017 1/16 .070 +-.003 0.676 11/16 13/16
4-0187516 Kalrez 6375 018 1/16 .070 +-.003 0.739 3/4 7/8
4-0197516 Kalrez 6375 019 1/16 .070 +-.003 0.801 13/16 15/16
4-0207516 Kalrez 6375 020 1/16 .070 +-.003 0.864 7/8 1
4-0217516 Kalrez 6375 021 1/16 .070 +-.003 0.925 15/16 1 1/16
4-0227516 Kalrez 6375 022 1/16 .070 +-.003 0.989 1 1 1/8
4-0237516 Kalrez 6375 023 1/16 .070 +-.003 1.051 1 1/16 1 3/16
4-0247516 Kalrez 6375 024 1/16 .070 +-.003 1.114 1 1/8 1 1/4
4-0257516 Kalrez 6375 025 1/16 .070 +-.003 1.176 1 3/16 1 5/16
4-0267516 Kalrez 6375 026 1/16 .070 +-.003 1.239 1 1/4 1 3/8
4-0277516 Kalrez 6375 027 1/16 .070 +-.003 1.301 1 5/16 1 7/16
4-0287516 Kalrez 6375 028 1/16 .070 +-.003 1.364 1 3/8 1 1/2
4-0297516 Kalrez 6375 029 1/16 .070 +-.003 1.489 1 1/2 1 5/8
4-0307516 Kalrez 6375 030 1/16 .070 +-.003 1.614 1 5/8  13/4
4-0317516 Kalrez 6375 031 1/16 .070 +-.003 1.739 1 3/4 1 7/8
4-0327516 Kalrez 6375 032 1/16 .070 +-.003 1.864 1 7/8 2
4-0337516 Kalrez 6375 033 1/16 .070 +-.003 1.989 2 2 1/8
4-0347516 Kalrez 6375 034 1/16 .070 +-.003 2.114 2 1/8 2 1/4
4-0357516 Kalrez 6375 035 1/16 .070 +-.003 2.239 2 1/4 2 3/8
4-0367516 Kalrez 6375 036 1/16 .070 +-.003 2.364 2 3/8 2 1/2
4-0377516 Kalrez 6375 037 1/16 .070 +-.003 2.489 2 1/2 2 5/8
4-0387516 Kalrez 6375 038 1/16 .070 +-.003 2.614 2 5/8 2 3/4
4-0397516 Kalrez 6375 039 1/16 .070 +-.003 2.739 2 3/4 2 7/8
4-0407516 Kalrez 6375 040 1/16 .070 +-.003 2.864 2 7/8 3
4-0417516 Kalrez 6375 041 1/16 .070 +-.003 2.989 3 3 1/8
4-0427516 Kalrez 6375 042 1/16 .070 +-.003 3.239 3 1/4 3 3/8
4-0437516 Kalrez 6375 043 1/16 .070 +-.003 3.489 3 1/2 3 5/8
4-0447516 Kalrez 6375 044 1/16 .070 +-.003 3.739 3 3/4 3 7/8
4-0457516 Kalrez 6375 045 1/16 .070 +-.003 3.989 4 4 1/8
4-0467516 Kalrez 6375 046 1/16 .070 +-.003 4.239 4 1/4 4 3/8
4-0477516 Kalrez 6375 047 1/16 .070 +-.003 4.489 4 1/2 4 5/8
4-0487516 Kalrez 6375 048 1/16 .070 +-.003 4.739 4 3/4 4 7/8
4-0497516 Kalrez 6375 049 1/16 .070 +-.003 4.989 5 5 1/8
4-0507516 Kalrez 6375 050 1/16 .070 +-.003 5.239 5 1/4 5 3/8
4-1027516 Kalrez 6375 102 3/32 .103 +-.003 0.049 1/16 1/4
4-1037516 Kalrez 6375 103 3/32 .103 +-.003 0.081 3/32 9/32
4-1047516 Kalrez 6375 104 3/32 .103 +-.003 0.112 1/8 5/16
4-1057516 Kalrez 6375 105 3/32 .103 +-.003 0.143 5/32 11/32
4-1067516 Kalrez 6375 106 3/32 .103 +-.003 0.174 3/16 3/8
4-1077516 Kalrez 6375 107 3/32 .103 +-.003 0.206 7/32 13/32
4-1087516 Kalrez 6375 108 3/32 .103 +-.003 0.237 1/4 7/16
4-1097516 Kalrez 6375 109 3/32 .103 +-.003 0.299 5/16 1/2
4-1107516 Kalrez 6375 110 3/32 .103 +-.003 0.362 3/8 9/16
4-1117516 Kalrez 6375 111 3/32 .103 +-.003 0.424 7/16 5/8
4-1127516 Kalrez 6375 112 3/32 .103 +-.003 0.487 1/2 11/16
4-1137516 Kalrez 6375 113 3/32 .103 +-.003 0.549 9/16 3/4
4-1147516 Kalrez 6375 114 3/32 .103 +-.003 0.612 5/8 13/16
4-1157516 Kalrez 6375 115 3/32 .103 +-.003 0.674 11/16 7/8
4-1167516 Kalrez 6375 116 3/32 .103 +-.003 0.737 3/4 15/16
4-1177516 Kalrez 6375 117 3/32 .103 +-.003 0.799 13/16 1
4-1187516 Kalrez 6375 118 3/32 .103 +-.003 0.862 7/8 1 1/16
4-1197516 Kalrez 6375 119 3/32 .103 +-.003 0.924 15/16 1 1/8
4-1207516 Kalrez 6375 120 3/32 .103 +-.003 0.987 1 1 3/16
4-1217516 Kalrez 6375 121 3/32 .103 +-.003 1.049 1/16 1 1/4
4-1227516 Kalrez 6375 122 3/32 .103 +-.003 1.112 1 1/8 1 5/16
4-1237516 Kalrez 6375 123 3/32 .103 +-.003 1.174 1 3/16 1 3/8
4-1247516 Kalrez 6375 124 3/32 .103 +-.003 1.237 1 1/4 1 7/16
4-1257516 Kalrez 6375 125 3/32 .103 +-.003 1.299 1 5/16 1 1/2
4-1267516 Kalrez 6375 126 3/32 .103 +-.003 1.362 1 3/8 1 9/16
4-1277516 Kalrez 6375 127 3/32 .103 +-.003 1.424 1 7/16 1 5/8
4-1287516 Kalrez 6375 128 3/32 .103 +-.003 1.487 1 1/2 1 11/16
4-1297516 Kalrez 6375 129 3/32 .103 +-.003 1.549 1 9/16 1 3/4
4-1307516 Kalrez 6375 130 3/32 .103 +-.003 1.612 1 5/8 1 13/16
4-1317516 Kalrez 6375 131 3/32 .103 +-.003 1.674 1 11/16 1 7/8
4-1327516 Kalrez 6375 132 3/32 .103 +-.003 1.737 1 3/4 1 15/16
4-1337516 Kalrez 6375 133 3/32 .103 +-.003 1.799 1 13/16 2
4-1347516 Kalrez 6375 134 3/32 .103 +-.003 1.862 1 7/8 2 1/16
4-1357516 Kalrez 6375 135 3/32 .103 +-.003 1.925 1 15/16 2 1/8
4-1367516 Kalrez 6375 136 3/32 .103 +-.003 1.987 2 2 3/16
4-1377516 Kalrez 6375 137 3/32 .103 +-.003 2.050 2 1/16 2 1/4
4-1387516 Kalrez 6375 138 3/32 .103 +-.003 2.112 2 1/8 2 5/16
4-1397516 Kalrez 6375 139 3/32 .103 +-.003 2.175 2 3/16 2 3/8
4-1407516 Kalrez 6375 140 3/32 .103 +-.003 2.237 2 1/4 2 7/16
4-1417516 Kalrez 6375 141 3/32 .103 +-.003 2.300 2 5/16 2 1/2
4-1427516 Kalrez 6375 142 3/32 .103 +-.003 2.362 2 3/8 2 9/16
4-1437516 Kalrez 6375 143 3/32 .103 +-.003 2.425 2 7/16 2 5/8
4-1447516 Kalrez 6375 144 3/32 .103 +-.003 2.487 2 1/2 2 11/16
4-1457516 Kalrez 6375 145 3/32 .103 +-.003 2.550 2 9/16 2 3/4
4-1467516 Kalrez 6375 146 3/32 .103 +-.003 2.612 2 5/8 2 13/16
4-1477516 Kalrez 6375 147 3/32 .103 +-.003 2.675 2 11/16 2 7/8
4-1487516 Kalrez 6375 148 3/32 .103 +-.003 2.737 2 3/4 2 15/32
4-1497516 Kalrez 6375 149 3/32 .103 +-.003 2.800 2 13/16 3
4-1507516 Kalrez 6375 150 3/32 .103 +-.003 2.862 2 7/8 3 1/16
4-1517516 Kalrez 6375 151 3/32 .103 +-.003 2.987 3 3 3/16
4-1527516 Kalrez 6375 152 3/32 .103 +-.003 3.237 3 1/4 3 7/16
4-1537516 Kalrez 6375 153 3/32 .103 +-.003 3.487 3 1/2 3 11/16
4-1547516 Kalrez 6375 154 3/32 .103 +-.003 3.737 3 3/4 3 15/16
4-1557516 Kalrez 6375 155 3/32 .103 +-.003 3.987 4 4 3/16
4-1567516 Kalrez 6375 156 3/32 .103 +-.003 4.237 4 1/4 4 7/16
4-1577516 Kalrez 6375 157 3/32 .103 +-.003 4.487 4 1/2 4 11/16
4-1587516 Kalrez 6375 158 3/32 .103 +-.003 4.737 4 3/4 4 15/16
4-1597516 Kalrez 6375 159 3/32 .103 +-.003 4.987 5 5 3/16
4-1607516 Kalrez 6375 160 3/32 .103 +-.003 5.237 5 1/4 5 7/16
4-1617516 Kalrez 6375 161 3/32 .103 +-.003 5.487 5 1/2 5 11/16
4-1627516 Kalrez 6375 162 3/32 .103 +-.003 5.737 5 3/4 5 15/16
4-1637516 Kalrez 6375 163 3/32 .103 +-.003 5.987 6 6 3/16
4-1647516 Kalrez 6375 164 3/32 .103 +-.003 6.237 6 1/4 6 7/16
4-1657516 Kalrez 6375 165 3/32 .103 +-.003 6.487 6 1/2 6 11/16
4-1667516 Kalrez 6375 166 3/32 .103 +-.003 6.737 6 3/4 6 15/16
4-1677516 Kalrez 6375 167 3/32 .103 +-.003 6.987 7 7 3/16
4-1687516 Kalrez 6375 168 3/32 .103 +-.003 7.237 7 1/4 7 7/16
4-1697516 Kalrez 6375 169 3/32 .103 +-.003 7.487 7 1/2 7 11/16
4-1707516 Kalrez 6375 170 3/32 .103 +-.003 7.737 7 3/4 7 15/16
4-1717516 Kalrez 6375 171 3/32 .103 +-.003 7.987 8 8 3/16
4-1727516 Kalrez 6375 172 3/32 .103 +-.003 8.237 8 1/4 8 7/16
4-1737516 Kalrez 6375 173 3/32 .103 +-.003 8.487 8 1/2 8 11/16
4-1747516 Kalrez 6375 174 3/32 .103 +-.003 8.737 8 3/4 8 15/16
4-1757516 Kalrez 6375 175 3/32 .103 +-.003 8.987 9 9 3/16