Trial Purpose:
DIY test for all purpose cleaning with water rinsing
Date Run:
05/06/2009Experiment Procedure:
Basic cleaning performance testing was conducted using ASTM G122 as the bases for cleaning.
A “Do-it-yourself" home formulation was evaluated for performance on several substrates and a soil for all purpose cleaning. Rinsing was added to improve residue removal.
Cleaning: Spray cleaner on the coupons
30 seconds of manual wiping using a Garnder Straight-line washability unit at room temperature. After cleaning, coupons were sprayed with water and wiped dry. Parts were analyzed using visual and gravimetric techniques.
Contaminant SSL Soil 3 – Hucker’s Soil
Substrate 2"x 4"x 0.06" for ceramic, painted steel, plastic and stainless steel.
All Purpose Formulations
Home Formulation 7 - 2 tbsp borax, ¼ cup lemon juice, 2 cups hot water - combine in spray bottle
Trial Results:
| Cleaner | Substrate | Initial Wt. | Final Wt. | % Removed |
| All Purpose DIY Formulation | Ceramic - 20 cycles | 0.2026 | 0.0426 | 78.97 |
| 0.2532 | 0.0498 | 80.33 | ||
| 0.1901 | 0.0513 | 73.01 | ||
| All Purpose DIY Formulation | Painted steel - 60 cycles | 0.1851 | 0.0037 | 98 |
| 0.2104 | 0.0096 | 95.44 | ||
| 0.2569 | 0.0072 | 97.2 | ||
| All Purpose DIY Formulation | Plastic - 20 cycles | 0.098 | 0.0063 | 93.57 |
| 0.1022 | 0.0021 | 97.95 | ||
| 0.1142 | 0.0025 | 97.81 | ||
| All Purpose DIY Formulation | Stainless steel - 20 cycles | 0.1235 | 0.0122 | 90.12 |
| 0.1104 | 0.0029 | 97.37 | ||
| 0.1787 | 0.0063 | 96.47 | ||
| All Purpose DIY Formulation | Ceramic - rinse | 0.2026 | 0.0279 | 86.23 |
| 0.2532 | 0.0412 | 83.73 | ||
| 0.1901 | 0.028 | 85.27 | ||
| All Purpose DIY Formulation | Painted steel - rinse | 0.1851 | -0.0043 | 102.32 |
| 0.2104 | 0.0039 | 98.15 | ||
| 0.2569 | -0.0034 | 101.32 |
Success Rating:
Preliminary compatibility tests on substrate coupons encouraging for at least one cleaning chemistry. More in-depth laboratory testing necessary.Conclusion:
The DIY formulation #7 was previously ineffective on the Hucker’s soil when used without a rinse. Each of the substrates cleaned and rinsed during this trial were cleaned above 85% with only one surface needing longer cleaning time. The plastic surface required 60 cycles of cleaning as compared to 20 cycles for the other surfaces. In addition, the plastic coupon was improved with a longer rinse process. The ceramic surfaces also needed additional rinsing time to achieve the 85% effective level.
