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Trial Number 8

Client Number 304

Project Number 1

Trial Purpose:

To evaluate different cleaning parameters for resin cleaning

Date Run:

07/10/2008

Experiment Procedure:

The top six products from the previous trials were selected based on successful removal of the resin were used at full strength in 300 ml glass beakers. Solutions were used at room temperature. Twenty-four 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 60 minutes using no agitation. The coupons were not rinsed but were dried using compressed air blow off 30 seconds at room temperature. Final weights were recorded, and efficiencies were calculated. Coupons also were visually analyzed to determine the level of residue left on the coupons.

Trial Results:

All of the products removed more than 98% of the resin from the aluminum coupons. The table lists the amount of soil added, the amount remaining after cleaning and the calculated efficiency for each coupon cleaned.

Cleaner Initial wt  Final wt   % Removed  Visual Residue Rank
EZ Solv 2.3587 0.0384 98.37 2
  1.5218 0.018 98.82  
  2.0437 0.0186 99.09  
Maxi Solv 2.4618 0.0032 99.87 3
  2.9164 0.0015 99.95  
  1.8763 0.0007 99.96  
Graffiti Remover SAC 2.4272 0.0115 99.53 1
  2.2462 0.0151 99.33  
  1.7293 0.0160 99.07  
Green Solutions 2.4350 0.0113 99.54 6
  2.3189 0.0016 99.93  
  2.0206 -0.0016 100.08  
Bio T Max 2.5422 0.0321 98.74 5
  2.4409 0.0210 99.14  
  2.0312 0.0434 97.86  
Smart Solve 605 2.4768 0.0112 99.55 4
  2.7625 0.0126 99.54  
  1.3547 0.0175 98.71  

Success Rating:

A follow up test, usually based on company input.

Conclusion:

All six products will be tested again using tap water rinse and air blow off drying.

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