Coating quantity/weight of adhesives, lacquers, coatings, hotmelts, cold sealants
Gravimetric determination according FhG information sheet 11 part 1, results in [g/m²]
Note: The application weight of the cured reactive adhesives or laquer systems (e. g. polyurethane laminating adhesive in composite films or epoxy laqueres) mostly can not be determined, because the method works only by removability of the layer to be tested, e.g. by dissolving under usage of solvents. We recommend in such cases an orienting light microscopic measurement of the adhesive or lacquer layer thickness by means of a microtome cross section.
In short — AI-generated
This test determines the amount of adhesive, lacquer, or coating applied to a packaging material by measuring the weight difference of a defined sample area. The coating is removed from the substrate using a suitable solvent, and the resulting mass is calculated in grams per square meter (g/m²).
The resulting value indicates the uniformity and thickness of the applied layer, which is critical for ensuring consistent barrier properties and bond strength. Packaging developers use this data to verify application accuracy, optimize material usage, and ensure compliance with technical specifications.
Text is AI-generated; based on test method data curated and verified by Innoform.