Useful product notes explain the conditions under which a material worked, the amount used, its reactions and its limitations.
Record these details
- Product batch, opening date and appearance.
- Leather type, base colour and treatment history.
- Tool, amount, contact time and environment.
- Immediate results and condition after 24 hours.
Learning sequence
- Establish a shared template.
- Change only one variable per test.
- Record failed trials and stop signals too.
- Regularly summarise findings in an internal suitability table.
Personal experience does not replace official product instructions. Stop using a product that has an unusual smell, has separated abnormally or is past its usable date.