Since the exterior wall putty plays a very important role in the protection of the exterior wall of the building, its quality is very critical, so JinKeLian designed the QDK automatic dynamic anti-cracking Tester according to the standard JG/T157-2004, which is used to test the following Cement, polymer powder, synthetic resin emulsion or other materials are used as the main binder, and the anti-cracking performance of the external wall putty composed of fillers and additives.
The cutting edge length of QDK automatic dynamic anti-cracking Tester is 150mm, and the measurement accuracy can reach 0.02mm.
The QDK motor drags the ejector rod to move up after deceleration by the gear, and the cutting edge generates an upward force, so that the asbestos cement board gradually produces fine cracks in the specified area and controls the slow expansion of the cracks. Observe the cracking of the putty layer to characterize it. The ability of the putty to resist the propagation of cracks in the base material.

