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Trial Number 7

Client Number 325

Project Number 1

Trial Purpose:

To evaluate the supplied products for bathroom cleaning using manual cleaning

Date Run:

11/27/2012

Experiment Procedure:

The supplied cleaning products were used at the supplied concentrations. Preweighed chrome, ceramic and fiberglass, coupons were coated with SSL Soil 1 (Bathroom soap scum: All-in-one shampoo and conditioner 28.6%, Dry skin lotion 21.4%, Liquid hand soap 21.4%, Liquid body wash 14.3%, Deodorant bar soap 7.2% and water 7.1%.) 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 2-3 sprays of cleaning solutions. Each coupon was sprayed 1-2 times with the same cleaning solution. The solution was allowed to penetrate for 30 seconds followed by cleaning in the SLW unit for 20 cycles (~33 seconds). At the end of the cleaning, coupons were wiped once with a dry paper towel. Final weights were recorded and efficiencies were calculated and recorded.

Trial Results:

The Mohawk Tile & Grout and Pledge MultiSurface products both removed over 85% of the bathroom soap scum soil from the surfaces using manual cleaning. The Softscrub removed 44%. The lower removal rate was due to the residue left behind from the cleaning product. A wet or dry wipe after cleaning would help to remove the cleaning residue and improve performance. The table lists the amount of soil added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner  Initial wt  Final wt % Removed
Product 1 Ceramic      
  80.117 80.118 98.23
  79.823 79.824 98.66
  77.407 77.409 98.13
Product 1 Fiberglass      
  32.675 32.680 95.06
  32.084 32.098 80.43
  32.201 32.210 88.15
Product 1 Chrome      
  21.733 21.737 88.85
  21.788 21.792 88.79
  21.767 21.772 87.15
Product 2 Ceramic      
  80.838 80.942 22.32
  69.599 69.664 36.73
  80.715 80.783 43.09
Product 2 Fiberglass      
  32.641 32.694 38.24
  32.305 32.377 18.14
  32.367 32.401 49.55
Product 2 Chrome      
  21.788 21.800 84.96
  21.728 21.770 44.30
  21.745 21.765 64.29
Product 3 Ceramic      
  72.399 72.409 90.22
  76.519 76.538 88.66
  80.031 80.051 87.51
Product 3 Fiberglass      
  32.209 32.221 84.35
  32.184 32.196 75.92
  32.603 32.620 83.61
Product 3 Chrome      
  21.782 21.787 88.24
  21.672 21.678 88.21
  21.726 21.729 92.49

Success Rating:

A follow up test, usually based on company input.

Conclusion:

The Mohawk Tile & Grout and Pledge Multisurface products had an overall average efficiency over 85% and performed better than the Soft Scrub Lemon product. The Mohawk Tile & Grout performed best cleaning efficiently out of the three products. The Softscrub Lemon product produced a lot of residual after manual wipe cleaning and would benefit from a rinse using wet towel.

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