To compare new spray delivery system with traditional spray can method for single pass application.
Date Run:
06/19/2002
Experiment Procedure:
Three clean steel plates (12" x 12") were coated with a single pass of from each system from 12" away. After the single pass, the coupons were laid flat to dry. Once dry, two measurement were made to determine the spray width and the over-spray amount. The spray patterns were photographed as well. The results were compared for both systems.
Trial Results:
The Enviro Caddie system (EC system) provided a thicker strip of paint than the Traditional Spray Can system (TSC system). The EC system provided a strip about 5 cm wide compared to 3 cm for the TSC system. The EC system also resulted in a wider over-spray measurement. Tables 1, 2 3 and 4 list the measurements for both systems.
Table 1. Enviro Caddie Thick strip measurement
(cm)
Three measurements. Each end of strip and middle
Coupon #
left end
middle
right end
average
1
5
4.8
4.8
4.87
2
5.2
5.3
5.1
5.2
3
6
5
5.6
5.53
Table 2. Overspray measurement
Coupon #
One measurement at widest area (cm)
1
14
2
17
3
20
Average
17
Table 3. Traditional Method Thick strip measurement
(cm)
Three measurements. Each end of strip and middle
Coupon #
left end
middle
right end
average
4
3
2.3
3
2.77
11
2.8
2.8
3
2.87
12
4
3.1
2.9
3.33
One measurement at widest area
4
7
11
11
12
10.2
Average
9.4
Figures 1 and 2 show the single pass spray pattern for each system. Figure 3 compares the two systems directly.
Figure 1. Enviro Caddie System Single Pass
Figure 2. Traditional Spray Can System Single Pass Figure 3. Direct Comparison of EC system and TSC system
Substrates: Steel Plate; Coating Type: Paint;
Delivery System:
Average Spray Width
Average Over-Spray Width
Enviro Caddie
5.20 cm
17 cm
Traditional Spray Can
2.99 cm
9.4 cm
Success Rating:
A follow up test, usually based on company input.
Conclusion:
The Enviro Caddie System delivered a wider spray path than the Traditional System did.
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