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Toxics Use Reduction Institute · Surface Solutions Laboratory
Toxics Use Reduction Institute

Surface Solutions Laboratory

Trial Report

Trial Number 1

(Client Number 275, Project Number 1)

Trial Purpose: To evaluate supplied products for glass cleaning.

Date Run: 01/30/07

Experiment Procedure:
The supplied cleaning products were used at the recommended concentrations (2% and 1.5%).

Six preweighed chrome and three glass coupons were coated with SSL Soil 2 (Glass soap scum: Water 51.5%, Hair gel 25.6%, Toothpaste 10.4%, Shaving cream 5.3%, Hair spray 3.7% and Spray deodorant 3.5%) using a hand held swab and allowed to dry for 24 hours at room temperature. The contaminated coupons were weighed again to determine the amount of soil added.

Three coupons were placed into a Gardner Straight Line Washability unit. A Wypall X60 reinforced wipe was attached to the cleaning sled and soaked with 5-7 sprays of cleaning solutions. Each coupon was sprayed 7-10 times with the same cleaning solution. The solution was allowed to penetrate for 30 seconds followed by cleaning in the SLW unit for 5 cycles (~10 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded and efficiencies recorded.

Trial Results
Product #108 and Blue Jay worked well on the glass soap scum. The table lists the amount of soil added, the amount remaining and the efficiency for
each coupon cleaned.

#108           Initial wt   Final wt       % Removed
Glass           0.0298         0.0070         76.51
                0.0537         0.0061         88.64
                0.0748         0.0058         92.25
Chrome          0.0287         0.0012         95.82
                0.0240         0.0021         91.25
                0.0234         0.0012         94.87

Blue Jay 
Glass           0.0336         0.0017         94.94
                0.0427         0.0006         98.59
                0.0466         0.0001         99.79
Chrome          0.0347         0.0039         88.76
                0.0422         0.0009         97.87
                0.0182         0.0006         96.70

Success Rating
A follow up test, usually based on company input.

Product #108 Spray & Wipe Cleaner and Blue Jay surpassed the 85% cut off level for efficiency in glass cleaning as specified in the Mass EPP protocol.