Trial #1
To evaluate five cleaners using ultrasonics
The five cleaners from the previous trial that caused a weight increase of the wax were used at the same dilutions, temperature and time. Each solution was de-gased in a Crest 40 kHz ultrasonic tank heated to 110 F. Fifteen preweighed coupons were coated with beeswax and allowed to cool before taking a dirty weight. Three coupons were cleaned in each solution for 5 minutes using ultrasonic energy. Coupons were rinsed at 110 F for 15 seconds using tap water and dried for 1 minute at 300 F using the Master Appliance heat gun.Final weights were recored and efficiencies were calculated for each solution.
Three of the products showed significant improvement with the addition of ultrasonic energy in the cleaning process. Texolite jumped to a 95% efficiency, Polyspray increased to 73.5% and Inproclean averaged 62.52%. The other two removed less than 10% of the wax. The table below lists the results for each product.
| Cleaner
|
Coupon 1
|
Coupon 2
|
Coupon 3
|
Average
|
Std Dev
|
| EXP 1400
|
-0.60
|
10.90
|
5.09
|
5.13
|
5.75
|
| Inproclean
|
63.08
|
67.65
|
56.84
|
62.52
|
5.43
|
| Texolite
|
90.59
|
94.63
|
99.79
|
95.00
|
4.61
|
| Polyspray
|
75.19
|
68.75
|
76.55
|
73.50
|
4.16
|
| Uni Clear
|
0.63
|
13.31
|
-8.51
|
1.81
|
10.96
|
The three products that improved with ultrasonics will be evaluated again at increased concentrations and cleaning times.
No relation