Choosing a Coating2 min read

Cleaner Comparisons: Use the Same Soil History, Not Just Similar-Looking Dirt

Two dirty panels may look similar while carrying different soils or exposure histories. A cleaner comparison should control or document those differences before attributing the outcome solely to the products being tested.

Updated · NANOLAB Knowledge

The key distinction

Soil type, amount, age and prior treatment can affect what a trial actually measures. The test plan should define a representative challenge and a consistent assessment method. A convenient comparison between unrelated vehicles may be informative as an observation, but it should not be presented as a controlled product ranking.

Practical checks

  1. Define the soil and its preparation or real-world history.
  2. Use comparable specimens and the approved instructions for each cleaner.
  3. Record the cleaning endpoint and any differences that limit interpretation.

Example

Illustrative example: one cleaner is used on fresh contamination and another on a deposit that has remained through several weather cycles. A faster result on the first panel does not establish that the first cleaner is universally stronger. The trial needs comparable conditions or a narrower conclusion.

Scope and limits

Do not create hazardous test soils or apply unapproved chemicals to customer property. This guide concerns study design and does not prescribe a contamination recipe. Any public claim should reflect the actual challenge, surfaces, product concentrations and method used in the comparison.

Related guidance

Ask NANOLAB about the exact product and intended use. Use the current product documentation for formulation-specific instructions.