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Trial #2

Trial #2

Evaluating Solvent alternatives for MEK in cleaning performance coating off of stainless steel substrate

26

0

1

10

10

Coupon

09/16/2025

0.00

Manual Wipe

Alexander Symko

Stainless Steel

Coatings

None

Air dry

Gravimetric

15 stainless steel coupons were prepared, with initial weights prior to soiling being taken. The soil, a mixture of LV-974EV and LV-3017 were mixed in a 100:4 ratio and applied to the substrate. The coupons were then baked in a laboratory convection oven for 30 minutes at 300 degrees F. Following cooling to room temperature, soiled weights were taken. Then the 5 solvents being tested: Benzaldehyde, Triethyl Phosphate, Tetrahydropyran, Dimethyl Glutarate, and Methyl Benzoate

Cleaner Coupon # Initial wt Cont. wt Clean wt. Initial wt of cont. Final wt of cont. %Cont Removed Average % Removal
Benzaldehyde 23 49.1505 49.2575 49.1537 0.1070 0.0032 97.01 91.67
10 49.5305 49.6190 49.5320 0.0885 0.0015 98.31
13 49.4940 49.6624 49.5282 0.1684 0.0342 79.69
Triethyl Phosphate 20 49.3846 49.5652 49.4776 0.1806 0.0930 48.50 50.31
15 49.4473 49.6288 49.5333 0.1815 0.0860 52.62
12 49.5164 49.7077 49.6124 0.1913 0.0960 49.82
Tetrahydropyran 21 49.3504 49.3927 49.3496 0.0423 -0.0008 101.89 86.65
28 49.2723 49.4406 49.3183 0.1683 0.0460 72.67
4 49.5258 49.6580 49.5451 0.1322 0.0193 85.40
Dimethyl Glutarate 18 49.4584 49.6187 49.5212 0.1603 0.0628 60.82 59.49
6 49.3398 49.5063 49.3945 0.1665 0.0547 67.15
5 49.5280 49.7724 49.6490 0.2444 0.1210 50.49
Methyl Benzoate 32 49.5055 49.7768 49.6070 0.2713 0.1015 62.59 68.93
1 49.2970 49.5256 49.3727 0.2286 0.0757 66.89
35 49.0954 49.2814 49.1376 0.1860 0.0422 77.31

Benzaldehyde and Tetrahydropyran succeeded in removing the highest amount of the coating, both averaging a removal over 85%. Following EHS evaluations further alternatives may be explored. 

No relation

Name Class Section
Document Evaluation #0 Evaluation 3
Document Evaluation #1 Evaluation 3
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