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Trial Number 0

Client Number 322

Project Number 1

Trial Purpose:

To evaluate various aqueous products for wax removal from glass coupons using immersion cleaning.

Date Run:

09/17/2009

Experiment Procedure:

Eight products were selected from the lab's on-line database, www.cleanersolutions.org, based on past testing results matching client supplied information. Two client supplied products were included for testing as well for comparative purposes. All of these products were diluted to 5% using DI water in 500 ml beakers. All eight products were heated to 130 F on a hot plate.

Thirty preweighed glass coupons were coated with Universal Photonics Unibond 5.0 wax by heating the wax with a Master Appliance Heat Gun and smearing the melted wax across the glass coupons. Dirty weights were recorded. Three coupons were cleaned in each product for five minutes using minimal agitation. Coupons were rinsed in a tap water bath at 120 F and dried using compressed air at room temperature. Final weights were recorded and efficiencies were calculated.

Trial Results:

Some of the coupons were found to gain weight after immersion cleaning. This was due to the cleaning solutions becoming embedded in the wax/adhesive on the coupons, causing the wax to swell. The cleaning solutions remained in the wax after rinsing and drying resulting in the increased weight or negative cleaning efficiencies. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner Initial wt Final wt % Removed
SC Aircraft & Metal cleaner  0.4036 0.3360 16.75
  0.5482 0.4463 18.59
  0.4294 0.3186 25.80
Texolite 1734 XL 0.3587 0.3165 11.76
  0.4427 0.3843 13.19
  0.5200 0.4648 10.62
Amber clean L12 0.7237 0.8293 -14.59
  0.7016 0.9227 -31.51
  0.4827 0.5594 -15.89
Amber clean Q3 0.6280 0.7608 -21.15
  0.6583 0.6961 -5.74
  0.9025 1.0899 -20.76
Micro 90 0.6537 0.5877 10.10
  0.6962 0.7591 -9.03
  0.8541 0.9224 -8.00
Inproclean 3800 0.7581 0.5201 31.39
  0.6772 0.4639 31.50
  0.6551 0.4326 33.96
SC 1000 0.8162 1.2507 -53.23
  0.7149 1.0166 -42.20
  0.7513 1.1821 -57.34
Polychem 2000 P 1.0430 1.2878 -23.47
  0.7890 0.9644 -22.23
  0.6715 0.9168 -36.53
Valtron SP2200 0.5066 0.6067 -19.76
  0.5736 0.7216 -25.80
  0.9725 1.1765 -20.98
Contrad 70 0.5032 0.1546 69.28
  0.5725 0.0614 89.28
  0.7385 0.0020 99.73

Success Rating:

Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.

Conclusion:

Many of the products were found to have some effect on the wax/adhesive even though the efficiencies were all less than 50% removal. A follow up test will be conducted using ultrasonic cleaning.

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