Castrol^® Optitool™ 215-2 Cleanroom Grade Grease

Technical Report

This is a comparison of synthetic, general-purpose greases that are used in rotary and lineal motion application in clean room environments, where metal contamination is of concern.

Description	Optitool 215-2 Results	Competitor Product Results

SRV 400N, 50°C, 1 mm, 50 Hz, 2 hrs Coef. of friction @ 2 hrs. Ball Scar diameter, mm Scar depth, ìm Scar area, ìm2	0.095 0.45 0.8 18.5	0.125 * 1 10.5 1177
SRV 300N, 50°C, 1 mm, 50 Hz, 1 hr. Coef. of friction @ 1 hr. Ball Scar diameter, mm Scar depth, ìm Scar area, ìm2	0.095 0.38 0.8 25.8	0.115 ** 0.6 3.5 2835

* A series if seizure around the 20^th minute of the run.
** A seizure around the 45^th minute of the run.

Metals ppm
	Optitool® 215-2	Competitor Product
Fe	12	0
Cr	0	0
Pb	0	0
Cu	0	0
Sn	0	0
Al	0	2
Ni	0	0
Ag	0	0
Si	40	46
B	0	0
Na	0	0
Mg	0	38
Ca	18	160
Ba	0	0
P	0	0
Zn	0	3320
Mo	0	0
Ti	0	0
V	0	0
Li	0	1186

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Castrol® Optitool™ 215-2 Cleanroom Grade Grease

Castrol^® Optitool™ 215-2 Cleanroom Grade Grease