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A very robust mechanical unit for determining the elasticity, adhesion and elongation of dried paint on sheet metal.

The frame has a bending lever, with height adjustable rollers and a sliding vice for the sample. Thanks to its design, the instrument can be adapted to the diameter of the mandrel used.

The coated specimens, up to 70mm (2.75") wide, and 80mm (3.15") or 100mm (3.93") long (for a mandrel 2mm / 0.08" or 32mm / 1.25" diameter respectively) are bent perfectly and regularly on decreasing mandrels until cracks can be observed.

Each instrument is supplied with a kit of 14 stainless steel mandrels with diameters of:

Metric Version: 2, 3, 4, 5, 6, 8, 10, 12, 13, 16, 19, 20, 25 and 32mm.

Imperial Version: 0.08, 0.12, 0.16, 0.20, 0.24, 0.31, 0.39, 0.47, 0.51, 0.63, 0.75, 0.79, 0.98, 1.25 inches.

Test method:

Elcometer 1506 Cylindical Mandrel Bend Tester

1. Insert the appropriate Mandrel.

(If not carried out as a "pass/fail" test start with the largest diameter. Use successively smaller mandrels until the coating cracks)

2. Move the Handle with the Bending Piece to the front of the apparatus.

3. Slide the Clamp of the Test Panel Holder so it becomes visible between the Mandrel and the Bending Piece.

4. Insert the test panel and turn the Handwheel to clamp it firmly.

5. Slide the Clamp of the Test Panel Holder until the test panel just touches the Mandrel.

6. Turn the Handle until the Bending Piece just touches the test panel.

7. Lift the Handle without jerking over 180° in 1 to 2 seconds.

8. Remove the test panel from the apparatus.

9. Immediately after testing examine the test panel for cracking or detachment. Use a x10 magnifier glass if needed.