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Trial Number 268

Trial Purpose:

Laboratory evaluations of alternative cleaning products

Date Run:


Experiment Procedure:

Basic cleaning performance testing was conducted using ASTM G122 as the bases for cleaning. 

Five products were used at full strength, heated to 120 F on a hot plate. Fifteen preweighed coupons were coated with Alpha 615 RMA flux (67-63-0, 8052-41-3, 8050-09-7) and allowed to dry for two hours and reweighed. Three coupons were cleaned in each solution for 5 minutes using stir-bar-agitation, rinsed in a tap water bath for 15 seconds at 120 F and dried using air blow off for 30 seconds at 68 F. Coupons were allowed to dry overnight and then reweighed a final time. Efficiencies were calculated.

Note: Bio T Foam Plus was sprayed onto coupons at room temperature and allowed to sit for 5 minutes. The cleaner was then rinsed.

Trial Results:

Only one product removed over 85% of this flux from the coupons. Two others removed just under 85%. The remaining two removed under 80%. Visual inspection revealed that most of the flux was removed, and the final weights could be improved with better rinsing and or drying in order to remove cleaning residue films.

Success Rating:

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


The DuPont DBE was the only effective product.

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