Hardness Test Pencil

This instrument has been designed for the measurement of the hardness of protective coatings. The degree of hardness of paint films, plastic coatings, etc. can be accurately measured and recorded with the Hardness Test Pencil. No matter whether on a level or curved surface, small or large. The instrument is always ready for use and, because of its small size easy transportable, an asset which will be appreciated by all concerned with hardness tests.

The handling of the Hardness Test Pencil is extremely simple. The estimated or known spring tension is set with the help of the slider. Holding the instrument upright and placing its point on the test surface one draws a 5 to 10 mm long line at a rate of approximately 10 mm/sec. The stylus should produce a scratch which is just visible with the naked eye. If the spring pressure is too high, the scratch is clearly visible; if too low, no scratch appears. The applied pressure, fixed by locking the slider, is marked in Newton’s.

Three scales are engraved into the test pencil for the three pressure ranges:

No.10 - 3 N (blue marked)

No.20 - 10 N (red marked)

No.30 - 20 N (yellow marked).

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Compression Springs spring steel

Test tipstungsten carbide spheres

Total Length160 mm

Diameter16 mm

Net Weightapprox. 250 g

Standard kit includes

1 Test tip:(0.75mm dia.-Bosch

3 Springs (0 - 3 N; 0 - 10 N; 0 - 20 N)

1 Plastic carrying case

 Ordering InformationBGD 511---Hardness Test Pencil

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BGD 1071---No.1 Test Tip(0.5 mm)

BGD 1072---No.2 Test Tip(0.75 mm)
BGD 1073---
No.3 Test Tip(1.0 mm)
BGD 1075---
Blue Spring(0-3N)
BGD 1076---
Red Spring(0-10N)
BGD 1077---
Yellow Spring(0-20N)

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Biuged Precise Instruments (Guangzhou) Co.,Ltd

AddNO.15, Fuzhong Rd., Zhongxin Town, 

Zengcheng District, Guangzhou.China



Website http// 

Biuged Instruments Co.,Ltd.

Add:RM.310, NO.1, Sicheng Rd.,
Tianhe District, Guangzhou.China



Biuged Precise Instruments (Shanghai) Co.,Ltd

Add:No.1111, ZhongCai Industrial Park
1st floor,Zhu Feng Road, Qingpu District
Shanghai City, China.



  Biuged Laboratory Instruments (Guangzhou) Co., Ltd.   Guangdong ICP record number:11044672