To determine the properties of the waterproof material by placing a number of clean steel ball beads on the test material and by stopping the count of water permeation due to twists and turns and by sensitive measurement.

Product specification

* number of test pieces: 1~4

* specimen size: 4 "x 4"

* specimen load: 135 + 5(g)

* test displacement: ° to 30 ° + 1

* test speed: 90 plus or minus 5 c.p.

* counter: LCD, 0~ 999999,4 sets

* motor: 90W

* volume: 49*45*45cm

* weight: 55kg

* power supply: 1 volt, AC220V, 2 A