Trial #3
To evaluate four paint removers using a manual removal of paint and varnish from painted wooden coupons.
Twelve pre-weighted wooden coupons were double coated with the supplied paint or varnish. Once dried, a second weight was recorded to determine the amount of paint added to the coupon. The cleaner was applied to each coupon with a brush and then cleaned using a 3 m Heavy Duty Scour Pad. Each coupon was scraped firmly ten times every five minutes for a 30-minute period. Then by visual and manual comparison efficiency were placed.
| Cleaner
|
Dirty Weight
|
Clean Weight
|
% Removal
|
| Nature Sol 100
|
0.1190
|
-0.1509
|
-1.27
|
| -0.1938
|
-0.0209
|
0.11
|
| 0.4473
|
-0.0317
|
-0.07
|
| EP-921
|
-0.0420
|
-1.0986
|
26.16
|
| -0.1148
|
-0.3655
|
3.18
|
| 0.3454
|
-0.2382
|
-0.69
|
| Bio-Solv
|
0.2217
|
0.2840
|
1.28
|
| -0.0294
|
0.0095
|
-0.32
|
| 0.8010
|
-0.4589
|
-0.57
|
| Soy Gold 1000
|
0.2684
|
-2.8769
|
-10.72
|
| 2.2256
|
-2.2438
|
-1.00
|
| 0.8212
|
-0.9771
|
1.19
|
Visual Ranking
| Cleaner
|
5 min
|
10 min
|
15 min
|
20 min
|
25 min
|
30 min
|
| Nature Sol 100
|
3
|
2
|
2
|
1.5
|
1
|
1
|
| EP-921
|
5
|
5
|
5
|
5
|
4.5
|
3
|
| Bio-Solv
|
5
|
4.5
|
4
|
4
|
4
|
4
|
| Soy Gold 1000
|
5
|
4.5
|
4.5
|
4.5
|
4
|
2
|
Overall, Biosolve was the best paint stripper for removing all three paint contaminants. EP 921 would be another good option to look further into as a Methylene Chloride alternative on other types of paints. Future testing should include these two paint strippers.
No relation