To evaluate two paint remover products for manual removal of paint and varnish from painted wooden coupons.
Date Run:
06/26/2015
Experiment Procedure:
Six pre-weighted wooden coupons were double coated with the supplied paint and 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 3m Heavy Duty Scour Pad. Each coupon was scraped firmly five times every five minutes and a new coat of cleaner was added after each round. After the 30 minutes period was over, the coupons were overnight dried; a third weight was recorded to determine the amount of paint was removed and efficiency was calculated.
Visual Performance ranking:
1) Excellent total removal
2) Good removal
3) Fair removal
4) Soften Paint 5) No removal
Trial Results:
Visual Rating of Paint Removal
Soil
5 mins
10 mins
15 mins
20 mins
25 mins
30 mins
Black Paint
4.2
2.3
1.3
1.2
1.2
1.0
Varnish
5.0
3.0
2.3
1.7
1.2
1.2
Soil 5 min 10 min 15 min 20 min 25 min 30 min
Black Paint 4.2 2.3 1.3 1.2 1.2 1.0 Varnish 5.0 3.0 2.3 1.7 1.2 1.2
Success Rating:
Results successful using TACT (time, agitation, concentration, and temperature, as well as rinsing and drying) and/or other cleaning chemistries examined.
Conclusion:
Paint & Varnish Stripping Gel performed the best on painted coupons removing more than 95% of the contaminant. It also has a high efficiency by removing varnish up to 90%.
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