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| 5021 Pencil Hardness Tester |
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The Pencil Tester is an effective method to test coatings for their hardness and resistance to scratches and wear. The test method allows the use of pencils which have a known hardness grade to be moved over the surface to be tested at a fixed angle and pressure.
These pencils, when passed for a specified number of times on the coating will also allow a wear factor to be determined which is related to the hardness of the pencil used.
Using this Pencil Tester, it is possible to evaluate coatings on a vertical plane. The pressure or weight applied relates to pencil lead crushing and therefore can be used for vertical coating evaluation to achieve repeatable results. |
| For this test, pencils of increasing hardness values are moved over the surface in a precisely defined way until one lead damages the surface. Surface Hardness is defined by the hardest pencil grade which just fails to damage the surface. |
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- Observe the pencil track. Sufficient pressure must have been applied either to cut or damage the coating or to crush the lead pencil point.
- If neither coating damage or pencil point crushing is observed, repeat the test until a definite observation is made.
- If scratching or damage of the surface occurs, proceed with the next softer pencil grade and repeat the testing process until a pencil lead grade is found which crushes and does not damage the coating.
- If crushing of the hardest lead should occur, the coating is therefore extremely hard and is beyond the measuring range of this test.
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Prices subject to change  Prices listed in US dollars for domestic shipments within US, Canada, & Mexico only Export orders require quotations - click here for a quote For more info call us 1-800-762-2478 or 954-946-9454. |
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| Item Number |
Item |
Prices |
| HA-5021 |
Pencil Hardness Tester Complete with carrying case, 17 pencils of different grades (Pencil leads include: H, 2H, 3H, 4H, 5H, 6H, 7H, 8H, 9H, F, HB, B, 2B, 3B, 4B, 5B, 6B) |
$195.00 |
| HA-5023 |
Same as above with JPIA Certified Pencils |
319.00 |
| HA-3468 |
Pencil Sharpener |
12.50 |
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