Buchholz Indentation Tester

Buchholz Indentation Tester

Buchholz Indentation Tester is a BYK-Gardner hardness testing instrument used to evaluate indentation resistance on coatings, paints, varnishes, and protective layers that are plastically deformable. This instrument helps users assess how well a coating layer resists permanent deformation under pressure, making it useful for quality control, coating R&D, supplier approval, and curing or drying behavior evaluation.

In Buchholz indentation testing, the instrument is placed on the coating surface with a standard load for a specified time to create an indentation mark. The indentation length is then measured using a microscope or suitable reading device. The shorter the indentation mark, the higher the indentation resistance or hardness of the coating. This method is relevant for comparing coating formulations, validating curing processes, and evaluating batch-to-batch quality consistency.

Buchholz Indentation Tester is designed according to ISO 2815 for testing paints and varnishes. The instrument is suitable for flat, clean coating surfaces with sufficient film thickness to ensure valid test results. This product is widely used for architectural coatings, industrial coatings, automotive coatings, wood coatings, powder coatings, varnishes, and protective coatings that require repeatable and documented hardness evaluation.