Cylindrical Bending Tester
By bending the coated metal substrate under a set radius, it can obtain the ductility and adhesion of the paint film under the bending stress.
The bending instrument is a simple and quick method to measure the elastic coating of the coating. Simply place the coating on the circular axis of the known diameter.
Then check the layers for cracks, peeling or other damage.
Made from anodic alumina
There are 12 stainless steel shaft bars
The test board can measure the width to 50mm
Axis rod diameter: 2, 3, 4, 5, 6, 7, 8, 10, 12, 20, 25, 32mm
Apply paint to metal substrate
Carefully coat the film and dry it to ensure good reproducibility
Experiment, firstly in 1 to 2 seconds the substrate bending test to 180 °
Start with the maximum diameter shaft rod and decrease the diameter test until you can see the coating fracture
Conform to the standard
GB/T 672-2007 paint and varnish bending test - cylinder axis