Barcol Hardness Tester

This convenient tool is used for testing the hardness of aluminium, copper, brass and a number of other materials including plastics and fibreglass. It can be used on fabricated parts as well as raw material.

Features
Easy to use - No training or experience required
Repeatable - Consistently accurate results each time
Versatile - Can be used in any position and in any space that will allow for the operators hand.
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Sward Hardness Rocker (Sward Type)

The hardness of organic coatings is compared by counting the number of oscillations made by these wheel type rockers on the test panel.

Results are expressed as a percentage of number of oscillations made on plate-glass standard which represents 100%.

Supplied with draught-proof plastic hood.

Complies with ASTM D2134
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Pendulum Hardness Rockers


Internationally approved for examining surface hardness, these instruments consist of a pendulum which is free to swing on two points resting on the coated test panel.

An electronic counter records the number of swings made by the pendulum between two angles of displacement. Both Koenig and Persoz types are supplied with an acrylic draught excluder and digital counter.
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Wolff-Wilborn Pencil Tester

The purpose of scratch hardness tests is to determine the resistance of coating materials or lacquers to scratch effects on the surface.

In the Wolff-Wilborn Test, twenty pencils in the range of grades from 9B to 9H ( ISO 15184 / BS 3900 - E19 ) are used, each being moved over the surface under a fixed pressure and angle to the surface. The degree of hardness of the pencil which damages the surface is taken as a measurement of scratch hardness e.g. '3H' hardness.

Complies with ASTM D3363, ECCA-T4-1, BS 3900-E19, ISO 15184
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Scratch Testers

Specifications allow for use of either the (preferred) mechanised or hand operated apparatus. A test panel is clamped to a slide which slowly withdraws the panel while a needle scratches the surface. Tests are conducted either on a ‘go/no go’ basis using a single specified load or by increasing the load to determine the minimum load at which the coating is penetrated.

Complies with BS 3900;E2, ISO 1518

Also available, loop stylus version BS 3900 : E17/ISO 12137-1

N.B. Other specifications available ASTM D5178,D2197
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