TQC Sheen Glass Plate (GP20) for Pendulum Hardness Tester

The TQC Sheen Glass Plate (GP20 – 100x100x6mm) is a precision calibration accessory used with the TQC Sheen Pendulum Hardness Tester. This smooth, level glass surface plays a critical role in ensuring consistent, accurate, and repeatable hardness test results—especially for coatings, paints, and liquid-applied materials.

Designed for stability and reliability, the plate acts as a calibration reference to level the instrument prior to testing. It’s essential for preparing the setup to perform valid measurements that conform to industry standards.

How to use the glass plate with the TQC Sheen Pendulum Hardness Tester:

1. Place the instrument on a stable, vibration-free surface.
2. Insert the glass plate onto the sample table of the instrument.
3. Use the integrated spirit level and mirror to visually confirm horizontal alignment.
4. Adjust the rear leveling feet until the spirit level bubble is centered.
5. Lift the sample table to contact the upper supports.
6. Ensure both the glass plate and the pendulum are clean and free of grease or dust.
7. Lower the sample table and place the pendulum on the support rods. Allow it to stabilize before performing the test.

This accessory is commonly used in laboratories and quality control departments within the inks and coatings industry. It supports hardness testing applications for materials such as paint and other liquids.

The glass plate does not come in other sizes and is manufactured for exclusive use with the TQC Sheen Pendulum Hardness Tester. While it is not made from any specialized material and does not conform to a specific test method by itself, it is a required item for properly setting up the instrument and is essential for accurate operation.