Hardness Test Pencil - Senze-Instruments

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Process & Quality Control

Hardness Test Pencil

Coatings & Industry > Physical properties > Hardness

Hardness Test Pencil, Model 318

For the Measuremen 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, Models 318 and 318 S, no matter whether on a level or curved surface, small or large.
The instrument is always ready for use and, because of it’s 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 Newtons

3 Pressure Ranges:

  • 0 - 3 N    (blue marked)

  • 0 - 10 N  (red marked)

  • 0 - 20 N  (yellow marked)


4 Test Geometries:

  • 0.75 mm (Bosch)

  • 1.0 mm (ISO)

  • 0.5 mm (van Laar)

  • 0.5 mm (Opel)




Hardness Test Pencil, Model 318 S with rolling head

For the Measurement of the Hardness of Protective Coatings


Technical Data:

Compression Springs: spring steel

Marking pins

  • nos. 1, 2 and 3: tungsten carbide spheres

  • no. 4 spring steel, with special tip geometry


Stylus point dia:

  • no. 1 0.75 mm (Bosch)

  • no. 2 1.0 mm (technically equivalent to ISO 1518)

  • no. 3 0.5 mm (van Laar)

  • no. 4 0.5 mm (Opel)

                  
Total length: 160 mm

Diameter: 16 mm


Weight, net: approx. 250 g

Hardness Test Pencil 318
Hadness Test Pencil
Order number: 101-0020.01.31
incl. test tip no. 1 (acc. to Bosch; 0,75 mm Ø) and 3 springs
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Hardness Test Pencil 318 S
Hadness Test Pencil
Order number: 101-0273.01.31
with rolling head, incl. test tip no. 1 (acc. to Bosch; 0.75 mm Ø) and 3 springs
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Special head for use Model 318 in connection with film applicator COATMASTER 510 MC
Hadness Test Pencil
Order number: 101-0708.01.32
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Test tip no. 2
Hadness Test Pencil
Order number: 101-0428.03.32
Test tip no. 2 (acc. to ISO 1518 and GME 60280 (Ø 1.0 mm)
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Test tip no. 3
Hadness Test Pencil
Order number: 101-0428.04.32
Test tip no. 3 (acc. to van Laar; 0.5 mm Ø)
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Test tip no. 4
Hadness Test Pencil
Order number: 101-0428.01.32
Test tip no. 4 (acc. to Opel; 0.5 mm Ø)
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Test tip no. 1
Hadness Test Pencil
Order number: 101-0428.02.32
Test tip no. 1 (acc. to Bosch (Ø 0,75 mm) for scratch test acc. to BMW GS 97034-9)
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Spring 0 - 3 N
Hadness Test Pencil
Order number: 101-0429.01.32
Spring 0 - 3 N blue marked
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Spring 0 - 10 N
Hadness Test Pencil
Order number: 101-0429.02.32
Spring 0 - 10 N red marked
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Spring 0 - 20 N
Hadness Test Pencil
Order number: 101-0429.03.32
Spring 0 - 20 N yellow marked
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Test tip (Ø 3 mm) for scratch inclination test acc. to BMW GS 97034-8
Hadness Test Pencil
Order number: 101-0428.05.32
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Test head „C“ (movable/retrofit) for models 318/318 S, for using the Clemen test tip
Hadness Test Pencil
Order number: 101-2109.01.32
Attention: Requires a Clemen test tip as well as a chucking adapter (rolling – for fixing and vertical guidance of the Hardness Test Pencil) and handle (anti-slip grip)
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Test tip acc. to Clemen (R 1.0 mm)
Hadness Test Pencil
Order number: 101-0218.02.32
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Special head (for use Model 318 in connection with film applicator COATMASTER 510)
Hadness Test Pencil
Order number: 101-0769.01.32

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Chucking adapter (rolling) for fixing and vertical guidance of the Hardness Test Pencil
Hadness Test Pencil
Order number: 101-1972.01.32



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Handle for the chucking adapter
Hadness Test Pencil
Order number: 101-1969.02.32
Handle for the chucking adapter adaptable anti-slip grip made of aluminium with engraved grid pattern, with freely rotating axis for constant force application. When using Model 318 C, the rotation function has to be locked.
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Hardness Test Pencil, Model 318 C (Clemen)
Hadness Test Pencil
Order number: 101-0314.01.31
Hardness Test Pencil, Model 318 C (Clemen) incl. test tip acc. to Clemen (R Ø 1 mm), chucking adapter (rolling – for fixing and vertical guidance of the Hardness Test Pencil), handle (anti-slip grip) and 3 springs


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