Buchholz Indentation Hardness Tester

Caltech India offers BGD 510 Buchholz Indentation Hardness Tester. It is a reliable test method for evaluation of indentation resistance of plastic deformable coatings. A beveled disc with a sharp edge is applied onto the test surface under a constant 500g. Test load provided by a steel block holder. The trace left after 30s. Load is measured with a 20X magnification illuminated microscope. The length of the indentation is inversely proportional to the hardness.

The Buchholz indentation test is a popular type of coating evaluation method that is used to determine the hardness of a coating, otherwise known as its ability to resist indentation.

This test requires a special piece of equipment that is known as a Buchholz indentation tester. The indentation left by the tester is measured to determine the hardness of a coating.

BGD 510 Buchholz Hardness Tester is a simple-to-use gauge for carrying out an indentation test on a single coating or multicoat system of paint, varnish or related product. The length of the indentation produced is indicative of the residual deformation of the coating. This indentation test is not suitable deformation of the coating.

To perform the test, a Buchholz indentation tester is used on a coating sample. The tester consists of a sharp tool made out of metal. This sharp tool is impressed upon the coating sample using a constant load. A timer ends the load application. The combination of the load and the sharp tool creates an indentation in the coating.

After the indentation is made, a microscope with graduations displayed on the viewing lens is then used to measure the size of the depression made by the sharp tool. The observed measurement is then found in a table that equates the size of the depression to a hardness value.

Prior to testing it is absolutely critical to ensure that the tester is properly calibrated. This includes both the load being applied and the edge condition of the sharp tool that makes the indentation in the coating. A dull tool could give a false hardness reading when performing a Buchholz indentation test.

• Stainless steel block
• Circular tool is a double cone block
• Circular tool and support of hard metal
• Marking triangle for precise positioning.
• 20x magnification with graduated scale to measure indentation length.

Standards: It complies with ISO 2815, BS 3900 E9, DIN 53153, ECCA T12 – 1985, ENISO NF 2815, NF T 30-052

Main Technical Parameters:

• Indentation load: 500±5g
• Indenter diameter: 30±0.2mm
• Indenter width: 5±0.1mm
• Indenter angle: 60°±0.5°
• Microscope magnification: 20X
• Accuracy of indentation reading: 0.1mm

Ordering Information:

BGD 510

Buchholz Indentation Hardness Tester

In India, we have various customers from Mumbai, Delhi, Bangalore, Chennai, Hyderabad, Ahmedabad, Kolkata, Surat, Pune, Jaipur, Lucknow, Kanpur, Nagpur, Visakhapatnam, Indore, Bhopal, Patna, Vadodara, Ghaziabad, Ludhiana, Coimbatore, Madurai, Nashik, Srinagar, Aurangabad, Dhanbad, Allahabad and Ranchi in India.