Why this test matters
Colour is one of the first things customers notice, and even small deviations can reduce perceived quality or lead to product rejections. Colour measuring lets you convert what would otherwise be a subjective impression, a coating or material looking "off," into an objective colour value, whether you're comparing production batches against a reference or tracking how much a material has discoloured after weathering, chemical exposure, or another durability test. It applies to all materials and coatings, wherever visual consistency and colour stability matter to how a product is perceived and accepted.
How the test works
Colour is measured with a colour meter using spherical (8°) geometry, which captures how the surface reflects light and translates that into standard colour values such as L, a, and b. For each coating or material, we take three measurements spread across the surface, then calculate the average and standard deviation, so the result reflects the sample as a whole rather than a single point. These measurements can be taken on a fresh sample to check it against a reference, or before and after a life-cycle test to quantify exactly how much the colour has shifted.
What you learn from this test
You receive precise colour values, including L, a, b, delta E, and Yellowness Index where relevant, that tell you exactly how close a sample is to its reference colour, or exactly how much it changed due to production variation, weathering, or chemical exposure. Because the result is a number rather than a visual impression, you can set clear pass/fail thresholds, track colour stability over time, and back up a quality or compliance claim with objective data instead of a subjective color match.
