The paint film is applied to a sheet metal and bent on shaft rods of different diameters (mm) to determine the flexibility of the paint film.

   The measurement was carried out at 22±1 °C and the relative temperature was not more than 70%.

Equipment & Appliances:

(1) The paint film elasticity tester (as shown in the figure) is composed of seven steel shaft rods of different thicknesses and calibers, which are fixed on the seat frame, and the seat frame can be nailed to the table side of the test bench with screws.

The dimensions of the shaft rods are as follows:

  The length of each shaft rod is 35 mm

  Shaft rod 1 diameter 15 mm

  Shaft rod 2 diameter 10 mm

  Shaft rod 3 diameter 5 mm

  Shaft rod 4 diameter 4 mm

  The shaft rod has 5 cross-sections of 3*10 mm, and its radius of curvature is 1.5 mm

  The axle rod has 6 sections of 2*10 mm, and its radius of curvature is 1 mm

  The axle rod 7 has a cross-section of 1*10 mm, and its radius of curvature is 0.5 mm

（2）Iron plate: thickness 0.2~0.3 mm, size 20*100~150 mm.

Paint film elasticity tester

1、R=7.5m/m steel bar

2、R=5m/m steel bar

3、R=2.5m/m steel bar

4、R=2m/m steel bar

5、R=1.5m/m steel bar

6、R=1m/m steel bar

7、R=0.5m/m steel bar