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Trial Purpose:

To evaluate successful products for longer cleaning times on the resin.

Date Run:

06/23/2008

Experiment Procedure:

Six products were selected from the previous trial based on successful removal of the resin. Each product was used at full strength in 300 ml glass beakers. Solutions were used at room temperature. Eighteen preweighed aluminum coupons were coated with the Mereco ECN 809 Base Black resin using a swab. Coupons were weighed a second time to determine the amount of soil added. Three coupons were immersed into each product and cleaned for 20 minutes using no agitation. Following cleaning, coupons were rinsed for 15 seconds in tap water at 68 F and dried using air blow off for 30 seconds at room temperature. Final weights were recorded, and efficiencies were calculated.

Trial Results:

The extended cleaning time increased the efficiency for all six products. Two products removed more than 90% of the resin, three removed more than 80%. The last product removed just under 80%. The table lists the amount of resin added, the amount remaining and the efficiency for each coupon cleaned.

Cleaner	Initial wt	Final wt	% Removed
EZ Solv	1.1997	0.0453	96.22
	1.4487	0.1141	92.12
	1.3278	0.0407	96.93
Graffiti Remover SAC	0.3810	0.0188	95.07
	1.8079	0.6413	64.53
	1.1350	0.1097	90.33
Bio T Max	0.9787	0.2780	71.59
	1.0709	0.1125	89.49
	1.3291	0.3124	76.50
Graffiti Remover	0.6904	0.0937	86.43
	0.7785	0.1053	86.47
	1.4637	0.1189	91.88
Smart Solve 605	0.5207	0.0151	97.10
	0.1691	0.0175	89.65
	0.8487	0.0266	96.87
Floor Finish Remover	0.5708	0.0127	97.78
	1.1040	0.2609	76.37
	0.7661	0.0835	89.10

Success Rating:

Results suggest a scale-up feasible match for cleaning chemistry and equipment. Pilot plant study with actual parts recommended.

Conclusion:

Additional testing may be conducted to determine the optimum concentration for the products that can be diluted with water.

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