연필 경도계

Pencil Hardness NOVOTEST PH-3363

The instrument is designed to determine the hardness of coatings by
pencil leads in compliance with: ASTM D 3363, ECCA T4, EN 13523-4, ISO 15184:2012, JIS K 5600-5-4.
Application
The instrument is widely used for hardness testing of powder and liquid
paint coatings. For high accuracy of the results, the lead of pencil
should be sharpen under 90 ° angle. The tests begin with the softest
pencil leads. If after applying there is no any signs of damage on the
tested coating, user will have to repeat the test with one grade harder
pencil leads. The MAX hardness value of pencil leads, that leaves no

any traces of destruction on the coating, is hardness value of tested coating (for example: 3H, 2H, H, HB, B, 2B, etc.).
Design
The instrument is made of steel, has rectangular shape. There are two
castors for movement on the surface of tested object. There is a port
through the instrument and thumbscrew for fixation of the pencil at an
angle of 45 ° to the tested surface. The design of the device provides a constant load 7,5N (750g) of the pencil lead on the tested coating.
Advantage
◦ Reliability and durability of the design
◦ Easy in operation
◦ Competitive price
Specification
Measurement range : 9В – 9Н
Load : 7,5N (750g) at 45°
Size of tested area : 70*160
Sharpening angle of lead : 90°
Dimensions : 120x55x50 mm
Weight : 1,8 kg