QHQ Pencil thikeness meter
Film hardness is a necessary index for quality identification in coating manufacturing and coating application (coating) industry. Pencil scratch test for film hardness has been widely used in the world since 1980s. China has also been in the development of coating research and industrial production to promote this test method. This instrument is designed and manufactured according to the national standard "determination of film hardness pencil" GB/T6739-2006. The instrument can be used in the laboratory, also can be used in the construction site, and can be in any direction of the coating hardness test.