Evaluate the efficacy of HSP solvent blends at removing two different adhesive formulations
Date Run:
01/16/2025
Experiment Procedure:
18 coupons were cut from the laminate sheet provided by Conklin office furniture. Colorimeter readings were then recorded prior to soiling. 9 of the coupons were soiled with the wilsonart 3000 adhesive and allowed to air dry overnight. The other 9 coupons were soiled with Jowat 2886.0 hot-melt adhesive and were similarly allowed to dry overnight. After soiled colorimeter readings were taken, the coupons were then manually wiped for 30 seconds each with a microfiber towel that was soaked in one of the three HSP formulations, 1- 48 wt% propylene carbonate and 52 wt% dimethyl glutarate, 2- 37 wt% propylene carbonate and 63 wt% acetone, 3- 48 wt% propylene carbonate and 52 wt% dimethyl carbonate. After wiping, the coupons were allowed to air dry overnight before final colorimeter readings were taken.
Trial Results:
Initial
Dirty
Clean
Cleaner
ID
Soil
L*
a*
b*
G
L*
a*
b*
G
L*
a*
b*
G
ΔE*
SRI
Overall SRI
1
1
Wilsonart
40.57
5.11
7.83
3.60
37.11
6.21
8.04
8.40
38.00
5.66
8.95
4.40
3.6367
2.8569
2.8077
2
39.98
5.02
7.64
3.40
36.73
6.16
8.09
9.10
37.36
5.85
9.08
5.20
3.4734
3.1027
3
41.12
5.41
8.02
3.40
38.82
7.22
9.42
8.40
41.32
6.82
10.03
4.90
3.2444
2.4634
2
4
29.66
4.58
7.82
3.60
37.24
6.62
7.99
8.80
38.77
6.88
10.04
6.80
7.8516
9.6546
5.6056
5
41.01
5.76
8.68
3.40
37.42
5.72
8.13
8.70
37.61
6.51
9.51
6.30
3.6321
3.5793
6
40.92
5.08
7.57
3.60
37.78
6.70
8.24
10.20
38.85
6.63
10.05
8.10
3.5962
3.5830
3
7
40.50
4.67
7.28
4.10
36.90
5.95
7.96
8.90
38.71
5.78
8.72
5.50
3.8808
2.5514
9.8342
8
40.71
4.95
7.81
3.40
36.08
6.06
7.77
7.10
37.61
6.00
8.47
5.30
4.7614
3.3389
9
39.69
4.45
7.34
3.60
37.28
5.61
7.32
7.20
63.15
6.44
9.13
6.10
2.6747
23.6122
1
10
Jowat
41.30
5.10
8.09
3.70
49.78
2.34
2.80
4.30
49.05
2.32
3.06
2.10
10.3688
9.6484
10.9118
11
39.77
4.65
7.93
3.60
49.45
2.17
2.80
3.10
51.25
1.76
2.46
2.30
11.2325
13.0408
12
53.22
1.54
3.38
3.20
43.80
3.82
4.95
7.30
43.47
3.74
4.39
1.90
9.8183
10.0460
2
13
39.41
5.28
7.27
3.60
46.13
2.49
3.65
12.00
56.38
1.52
2.07
1.60
8.1269
18.1427
15.3425
14
44.73
4.20
6.38
3.70
45.71
3.09
3.66
8.80
54.59
1.64
1.60
1.90
3.0969
11.2526
15
40.58
5.36
7.71
3.20
47.89
2.47
2.89
2.70
55.61
1.46
1.75
1.80
9.2207
16.6323
3
16
41.02
5.44
8.93
3.70
47.32
2.72
4.02
8.80
47.77
3.29
3.96
2.10
8.4378
8.6537
8.1150
17
40.67
5.16
7.26
4.70
42.71
2.80
3.44
7.90
47.44
2.34
2.57
1.90
4.9319
8.7053
18
40.67
5.00
7.19
3.80
41.28
4.84
7.08
5.00
45.81
3.07
2.87
1.30
0.6402
6.9862
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.
Conclusion:
Based on the results of this test, the solvent formulations were moderately to minimally effective at removing the "stain" (soil) and restoring the substrate to its initial state. Stain removal index (SRI) scores above 50 would indicate significant effectiveness in this case, and the highest SRI was for formulation 2 removing the Jowat adhesive with a SRI of 15.34.
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