To find an effective alternative cleaner to remove asphalt, tar, and staining from road maintenance tools and work truck beds.
Date Run:
03/06/2025
Experiment Procedure:
Three pre-weighed stainless steel coupons were assigned to each cleaner. A tablespoon of EZ Street Premium Cold Asphalt was placed on each coupon before sandwiching the contaminated coupon between two steel plates. A mid-size compact car (curb weight: 3,186lbs-3,559lbs) rolled over the steel plates five times in a forward motion to compress the asphalt to the coupons which released the oil and grease to allow the gravel to adhere to the substrate. Dirty weights of the coupons were recorded before testing the cleaners using unheated immersion for 20 minutes with a stir bar set to 200rpm. Once removed, each coupon was wiped with a paper towel to remove the dissolved soil and assess efficacy visually before taking final weights.
Trial Results:
Cleaner
Initial wt of cont.
Final wt of cont.
%Cont Removed
% AVG
Anisole
0.9001
0.0132
98.5335
98.5345
0.8742
0.0125
98.5701
1.0400
0.0156
98.5000
Ethyl Benzoate
0.9311
0.0157
98.3138
98.4092
0.9896
0.0174
98.2417
1.4309
0.0190
98.6722
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Anisole and Ethyl Benzoate are both highly effective in removing asphalt from stainless steel.
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