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Trial Number 7

Client Number 299

Project Number 1

Trial Purpose:

To evaluate products at higher concentrations and longer times on grinding fluid.

Date Run:

05/21/2008

Experiment Procedure:

Three products from previous lab testing were used at 20% dilution and one was used at five percent. Preweighed coupons were coated with the supplied grinding fluid (Houghton - Grind (HOUC 420060) using a hand held swab and weighed a second time to determine the amount of soil added.

Each cleaner was put in a bowl and three coupons were dunked into the solution at a constant rate for 30 seconds of cleaning. The coupons were then put on a tray and when done and allowed to air dry. There was no rinse. The process was done to as closely replicate the process used on site as possible. Once dry, final weights were recorded, and efficiency calculated for each coupon cleaned.

A second batch of coupons were cleaned for 1 minute following all other procedures. An additional three products were included in the evaluation at 20% dilutions.

Trial Results:

The 20% solution at 30 seconds were still ineffective on the grinding fluid. However, the increased cleaning time (1 minute) improved the results with two of the products removnig over 90% of the contaminant. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned at both time lengths.

30 Second Cleaning

Cleaner Initial wt  Final wt % Removed
Shopmaster LPH 0.1397 0.0430 69.22
  0.0556 0.0607 -9.17
  0.0954 0.0485 49.16
Shopmaster HP 0.1515 0.0697 53.99
  0.0678 0.0432 36.28
  0.0990 0.0666 32.73
Bio T 300 B 0.0907 0.0435 52.04
  0.1567 0.0380 75.75
  0.0983 0.0504 48.73

1 minute cleaning Grinding Fluid

Cleaner Initial wt  Final wt % Removed
SC Aircraft 0.1860 0.0120 93.55
  0.2019 0.0155 92.32
  0.1409 0.0110 92.19
Inproclean 3800 0.1529 0.0171 88.82
  0.2310 0.0122 94.72
  0.1980 0.0183 90.76
Aquavantage 1400 GD  0.1744 0.0324 81.42
  0.0872 0.0339 61.12
  0.1195 0.0466 61.00
Shopmaster LPH 0.2909 0.1386 52.35
  0.1044 0.0544 47.89
  0.2163 0.0218 89.92
Shopmaster HP 0.1075 0.0318 70.42
  0.0754 0.0459 39.12
  0.1991 0.0608 69.46
Bio T 300 B 0.2037 0.0760 62.69
  0.2221 0.0343 84.56
  0.1032 0.0312 69.77

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The increased concentration and time both proved effective on the grinding fluid.

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