Impact resistance of a coil coating.
The problem
We're developing a coil coating for steel, and in the first trials it cracks during forming. Below are 10 factors that we can change. Tell me which of them influence impact resistance and give me the settings that maximize it. The response is reverse impact in inch-pounds to the first crack. Higher is better. Only settings inside the ranges are allowed, and the measurements are noisy.
| Column | Factor | Unit | Low, −1 | High, +1 |
|---|---|---|---|---|
| Binder and additives | ||||
| X01 | Binder blend ratio (soft share) | % | 0 | 40 |
| X02 | Elastomer modifier | % | 0 | 8 |
| X03 | Plasticizer | % | 0 | 5 |
| X04 | Silane coupling agent | % | 0 | 1.5 |
| Pigment and filler | ||||
| X05 | Filler median particle size | µm | 1 | 10 |
| X06 | Pigment volume concentration | % | 20 | 40 |
| X07 | Dispersant | % | 0.5 | 1.5 |
| Application and cure | ||||
| X08 | Dry film thickness | µm | 50 | 90 |
| X09 | Peak metal temperature | °C | 216 | 241 |
| X10 | Oven dwell time | s | 25 | 45 |
How it works
- 01
Plan your runs.
- 02
Run them below.
- 03
Send me your answer.
You can plan and run as many rounds as you need before you send me the final result.
Run your experiments
Send a run sheet
An Excel or CSV file with one column per factor from X01 to
X10, in coded levels or real units.
Saved in this browser. Send this file with your answer.
Send me your answer
I'd really appreciate your contribution. Thank you for taking the time.