What is the purpose of the Blotter Test?

The Blotter Test is specifically designed to detect the presence of oil and water in compressed air. This is crucial for the application of paints and coatings, as the quality of the compressed air used can directly impact the performance and adhesion of the applied coatings. Oil and water can lead to contamination of the surface being coated, affecting both appearance and durability.

By performing the Blotter Test, inspectors can ensure that the compressed air system is free from moisture and oil, thereby safeguarding the integrity and longevity of the protective coatings being applied. The test typically involves using a blotter paper, where air is compressed onto the paper, and any oil or water contaminants will show up as visible spots, allowing for a clear assessment of air quality before painting operations commence.