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Trial Number 1

Trial Purpose:

Efficacy testing of Case Medical cleaner against M.D. Stetson EPS at removing Wilsonart 3000 adhesive from aluminum, plastic, glass, and stainless steel.

Experiment Procedure:

Twelve coupons per cleaner, three of each substrate (aluminum, plastic, glass, stainless steel), had initial weights recorded before soiling with Wilsonart 3000 adhesive and air drying for 24 hours at room temperature (68°). After drying, dirty weights were recorded. Three coupons of the same substrate were placed onto the Gardner-scrub Abrasion Tester machine (SLW). Wypall cleaning cloths were attached to the cleaning block used for the test. Each Wypall cloth and all coupons received one spray of the cleaner, and the Gardner-scrub Abrasion Tester was run for 20 cycles (Equivalent to 30 seconds of cleaning). After air drying for 24 hours, final weights were taken. 

Trial Results:

Cleaner Substrate Initial wt of cont. Final wt of cont. %Cont Removed % Average  Removal % Overall Removal
Case Medical Aluminum 0.0357 0.0319 10.64 4.90 15.16
0.0491 0.0474 3.46
0.0500 0.0497 0.60
Glass 0.0276 0.0241 12.68 11.83
0.0426 0.0372 12.68
0.0355 0.0319 10.14
Plastic 0.0230 0.0174 24.35 37.00
0.0146 0.0054 63.01
0.0389 0.0297 23.65
Stainless Steel 0.0418 0.0402 3.83 6.92
0.0227 0.0199 12.33
0.0436 0.0416 4.59

EPS Dilution

1:10

 Aluminum 0.4841 0.4784 1.18 1.95 3.81
0.5285 0.5080 3.88
0.4672 0.4635 0.79
Glass 0.3626 0.3558 1.88 3.95
0.5690 0.5374 5.55
0.7352 0.7027 4.42
Plastic 0.5341 0.4881 8.61 7.48
0.6163 0.5688 7.71
0.7052 0.6621 6.11
Stainless Steel 0.4668 0.4583 1.82 1.88
0.4952 0.4835 2.36
0.6804 0.6705 1.46

Larger amounts of the Adhesive was applied to the EPS Dilution samples than was applied to the Case Medical samples due to a different soiling method being used. Additionally, after further cleaning the leftover adhesive easily peeled off the aluminum, glass, stainless steel, but was extremely difficult to remove from the plastic coupons.

Success Rating:

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

Conclusion:

Case Medical cleaner was more effective at removing Wilsonart 3000 adhesive from aluminum, glass, plastic, and stainless steel than M.D. Stetson's EPS. 

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