ABOUT PRODUCTS RESOURCES QUOTES/ORDERING  
1-800-762-2478   Facebook Twitter Twitter 


 Abrasion
 Adhesion
 Application
 Color/Gloss
 Density
 Dispersion
 Drum Handling
 Drying Time/Gelation
 Film Flaws
 Film Thickness
 Hardness
 Impact & Flexibility
 Lab Apparatus
 Measuring Instruments
 Moisture/Air/Temp.
 Optical Instruments
 pH & Conductivity
 Publications
 Surface Profile
 Surface Tension
 Viscosity
Home  >>  Products  >>  Hardness  >>  5021 Pencil Hardness Tester
5021 Pencil Hardness Tester

Meets ASTM D 3363

5021 Pencil Hardness Tester

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.

 

Operation

top
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.
  1. Observe the pencil track. Sufficient pressure must have been applied either to cut or damage the coating or to crush the lead pencil point.

  2. If neither coating damage or pencil point crushing is observed, repeat the test until a definite observation is made.

  3. 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.

  4. If crushing of the hardest lead should occur, the coating is therefore extremely hard and is beyond the measuring range of this test.

Pencil Scale

 

Prices

top
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.
Item Number Item Prices
HA-5021 Pencil Hardness Tester Complete with carrying case, 17 pencils of different grades (Pencil leads include: 9H, 8H, 7H, 6H, 5H, 4H, 3H, 2H, H, 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 (not included with tester) 12.50
HA-3416 Wooden Pencil Set Replacement 36.00
HA-3460 JPIA Pencil Set Replacement 161.50



top

Call HAVE QUESTIONS?
    1-800-762-2478
Email PREFER TO EMAIL?
    gardner@gardco.com
  FIND PRODUCTS LEARN MORE ORDERING INFO ABOUT US
  By Category Email Registry How to Order Contact Info
  By Industry Trade Shows Request Quote History
  New Products Test Lab Info Order Form FAQ's
  Monthly Product Articles/Links Sales & Clearance Policies




  © 2018 Paul N. Gardner Company, Inc. | Contact | Policies Facebook  Twitter  YouTube  Blogger