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Trial Number 5

Trial Purpose:

To evaluate the effectiveness of five drop-in solvents at removing aged lubricant on aluminum alloys.

Date Run:

07/24/2017

Experiment Procedure:

Preweighed aluminum coupons were tested for each cleaner. Coupons were soiled with Blasocut 2000 Universal lubricant (CAS 64742-52-5; 61790-44-1; 68608-26-4; 63449-39-8; 107-41-5; 770-35-4) using a swab to cover the bottom third of the substrate and air dried for 20 minutes. Coupons were then soaked in water for 10 minutes and air dried for four days before recording dirty weights. Coupons were immersed, three at a time, in a beaker with 200ml of the chosen cleaner at room temperature (68 F) for five minutes. Visual observations were taken during this time, and final weights were recorded after cleaning. This process was repeated for each cleaner on Blasocut 2000 Universal.

Trial Results:

Cleaner Initial wt. Final wt. % Removed Average % Removed
Fluosolv CX        
  0.0222 0.0031 86.04 78.16
  0.0424 0.0123 70.99  
  0.0430 0.0097 77.44  
Fluosolv NC        
  0.0646 0.0009 98.61 98.07
  0.0857 0.0016 98.13  
  0.0475 0.0012 97.47  
Solstice PF        
  0.0653 0.0011 98.32 98.37
  0.1009 0.0027 97.32  
  0.0938 0.0005 99.47  
Solstice PF-2A        
  0.0692 0.0012 98.27 98.09
  0.0580 0.0013 97.76  
  0.0735 0.0013 98.23  
Vertrel Sion        
  0.1478 0.0000 100.00 99.62
  0.0960 0.0005 99.48  
  0.1123 0.0007 99.38  

Fluosolv CX had residue still on the coupons after five minutes of immersion. The other four drop-in solvents performed the same and no soil was visable after cleaning.

Success Rating:

Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.

Conclusion:

Four of the five drop-in solvents were effective at removing aged Blasocut 2000 Universal on aluminum. Next step would be to try incorporating agitation and increase immersion time. Not all products will be used in future testing due to EHS criteria and performance.

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