Test principle
It is used to test shoe upper material of leather, synthetic leather, cloth,etc. anainst water
penetration, which is taken the specimen immersing in water and flexing by a constant speed
waterproof tester for leather products is used standard steel ball placed in the interrior ofleather, and in this way to do water-proof and twist testing. Testing before need to set the number of reverse and automatically shut down when the number arrive, the machine is equipped with a sensor, when the water infiltrate into the interior of leather, it will automatically stop counting time, and display the time of twist.