Sealey ta091 paint thickness gauge sealey ta091 p this paint thickness gauge from sealey is ideal for the showroom bodyshop and valeting bay to accurately verify the thickness of paint and check for accident damage uses magnetic induction to provide accurate and consistent readings to 0 1mm suitable for iron steel and aluminium with non magnetic coatings including paint enamel plastic and epoxy displays measurement in mm p sealey ta091 paint thickness gauge