Term: poor sheen uniformity

Poor sheen uniformity refers to an inconsistent or uneven appearance in the gloss or shine level of a painted surface. This means that some areas may appear glossier or duller than others, even though the same paint product and colour were used.

In professional painting, especially in Australia where high standards are expected in both residential and commercial projects, poor sheen uniformity is considered a defect. It can result from several factors, including:

• Uneven application of paint (e.g., inconsistent roller pressure or spray technique)
• Improper surface preparation (e.g., patchy priming or sanding)
• Touch-ups done after the main coat has dried
• Variations in drying conditions (e.g., temperature, humidity, or airflow)
• Mixing different batches of paint without boxing them together

Poor sheen uniformity is most noticeable in low-angle lighting or on large, flat surfaces like ceilings and walls. It can detract from the overall finish quality and may require repainting to correct.