All-purpose test to determine the efficacy of the GeoPro X product in removing Lithium grease from a variety of substrates compared to other janitorial and industrial degreasing products.
Date Run:
04/25/2024
Experiment Procedure:
Three coupons of each substrate were used per cleaning product, for a total of 24 coupons. Each coupon was weighed using a gravimetric balance and had their weights recorded. Each coupon was then soiled with about 0.5 grams of lithium grease by using a swab to administer the contaminant down the center of the coupons. Each coupon was then weighed again, and had their 'dirty weights' recorded. The coupons were then cleaned with their respective cleaning product using the Straight Line Washability Unit (or SLW) to ensure a standard pressure is applied to each coupon while being manually wiped. Two sprays of the correct cleaner was applied to a wypall that is attached to the cleaning sled of the SLW to wipe the soil away and two sprays were applied directly to each coupon (meaning each coupon was cleaned with about 2.5 ml of cleaning chemisty). The SLW unit was run for 20 cycles (20 back and forth motions) for each coupon. Once cleaned, the coupons were allowed to air dry before having their final weights recorded.
Trial Results:
Product
Coupon Type
Initial wt of cont.
Final wt of cont.
%Cont Removed
AVG percent removal
AVG Overall Removal
GeoPro X 1.5%
Aluminum
0.0262
0.0236
9.92
5.97
6.20
0.0424
0.0396
6.60
0.0431
0.0425
1.39
Galvanized Steel
0.0319
0.0311
2.51
2.15
0.0463
0.0447
3.46
0.0625
0.0622
0.48
Stainless Steel
0.0642
0.0624
2.80
10.48
0.0454
0.0394
13.22
0.0778
0.0658
15.42
Formula 409 RTU
Aluminum
0.0733
0.0150
79.54
67.03
53.04
0.0580
0.0241
58.45
0.0439
0.0162
63.10
Galvanized Steel
0.0503
0.0186
63.02
54.18
0.0586
0.0282
51.88
0.0674
0.0353
47.63
Stainless Steel
0.0450
0.0339
24.67
37.93
0.0764
0.0415
45.68
0.0465
0.0263
43.44
Polychem Deox 007 1:7
Aluminum
0.0325
0.0219
32.62
42.98
57.08
0.0479
0.0247
48.43
0.0499
0.0260
47.90
Galvanized Steel
0.0390
0.0123
68.46
69.00
0.0792
0.0153
80.68
0.0650
0.0274
57.85
Stainless Steel
0.0440
0.0161
63.41
59.25
0.0519
0.0179
65.51
0.0602
0.0308
48.84
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
None of the products are effective in removing lithium grease from Aluminum, Galvanized Steel, or Stainless Steel. The Fomula 409 and Polychem Deox 007 performed comparatively and removed, on average, about 50% of the soil from the coupons. The GeoPro X 1.5% concentration unfortunately did not perform comparatively to the two other products, removing only about 6.2% of soil from the coupons.
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