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To evaluate supplied products for glass cleaning using manual cleaning
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 handheld 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.
All three supplied products removed over 98% of the glass soap scum using manual cleaning. One product had filming and spotting levels below the acceptable level from Green Seal. The other two products had better results than the conventional product for filming and streaking. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.
|Cleaner||Initial wt||Final wt||% Removed|
|PC 101 glass||0.0512||-0.0010||101.95|
|PC 101 mirror||0.0678||0.0011||98.38|
|PC 120 glass||0.0415||0.0001||99.76|
|PC 120 mirror||0.0683||0.0012||98.24|
|PC 220 glass||0.0188||-0.0001||100.53|
|PC 220 mirror||0.0327||0.0003||99.08|
|Cleaner||Film 1||Film 2||Film ave||Spot 1||Spot 2||Spot Ave|
|PC 101 glass||3||3||4.8||2||2||3.5|
|PC 101 mirror||7||4||3||4|
|PC 120 glass||2||2||3.5||4||3||3.2|
|PC 120 mirror||4||3||4||3|
|PC 220 glass||2||1||2.6||1||1||2.3|
|PC 220 mirror||4||3||3||3|
Success Rating:A follow up test, usually based on company input.
The three products had an overall average removal efficiency greater than 85% and as well as the conventional cleaning product. Only one product PC 200 had acceptable filming and streaking levels. However, all three supplied products had better results than the conventional product.