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Chemours Krytox® 202 GPL Standard Grade Grease

Perfluoropolyether (PFPE)

Chemours

产品说明

Krytox® GPL 200–207 greases are white buttery greases with all of the same properties as the GPL 100–107 oils that they are made from, but they are in grease form. The grease additives may alter the chemical resistance of the grease. The standard grease consistency is NLGI grade 2 penetration (265–295). Softer or harder NLGI penetration grades can be made by special order. Special nonmelting silica thickeners are available for applications that are higher than the 325°C (617°F) melting point of the standard PTFE thickener. All standard grades of grease are thickened with Krytox® 2000 polytetrafluoroethylene (PTFE), whose formula is (CF2-CF2)n. This special high efficiency thickener has a melting point of 325°C (617°F) and has low molecular weight and submicron (0.2 m) particle size for higher performance in bearings.

Krytox® GPL 100–107 oils are clear, colorless, fluorinated synthetic oils that are nonreactive, nonflammable, safe in chemical and oxygen service, and are long-lasting. Krytox® is a perfluoropolyether (PFPE)—also called perfluoro-alkylether (PFAE) or perfluoropolyalkylether (PFPAE). The polymer chain is completely saturated and contains only carbon, oxygen, and fluorine. On a weight basis, a typical Krytox® oil contains 21.6% carbon, 9.4% oxygen, and 69.0% fluorine.

Information provided by DuPont Performance Lubricants.

物理性能额定值 (公制)额定值 (英制)测试方法
比重 g/cc
@Temperature 100 °C
lb/in³
@Temperature 212 °F
g/cc
@Temperature 0.000 °C
lb/in³
@Temperature 32.0 °F
粘度测量 ASTM D2270
Kinematic Viscosity cSt
@Temperature 20.0 °C
cSt
@Temperature 68.0 °F
ASTM D445
运动粘度 40°C(104°F) cSt cSt ASTM D445
运动粘度 100°C(212°F) cSt cSt ASTM D445
蒸发损失 Volatility; 22 hr; 66°C; ASTM D972 Modified
@Temperature 121 °C, Time 79200 sec
@Temperature 250 °F, Time 22.0 hour
Volatility; ASTM D972 Modified
机械性能额定值 (公制)额定值 (英制)测试方法
动态摩擦系数 4-Ball Wear Test; 1200 rpm/60 min; ASTM D4172
Four Ball Wear mm in 1200 rpm/60 min; ASTM D4172
Falex Load Test g lb V-Block Load Carrying Ability; 32 in-lb torque at max load; ASTM D3233
Oil Separation 30 hr; 99°C; FTMS 791B 321.1
热性能额定值 (公制)额定值 (英制)测试方法
最高工作温度, Air °C °F
最低工作温度, Air °C °F
凝点 °C °F ASTM D97
材料描述测试方法
ISO Grade of Oil15
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