According to the national standard GB9779, the initial drying crack resistance testing machine is mainly suitable for the initial drying crack resistance test of architectural coatings and indoor and outdoor architectural putty under the condition of specified wind speed.
TR 5261 – Initial Drying Crack Resistance Tester
1. How it works
The wind tunnel is equipped with a test plate frame parallel to the direction of air flow, after starting the axial fan, the wind speed is controlled within 3±0.3m/s with an air volume control device, the coated test plate is placed on the test plate frame in the wind inspection tunnel, and the drying control time is adjusted according to the requirements of the product standard.
2. Structure
The testing machine is mainly composed of axial fan, test wind tunnel, test piece holder and air volume control device, timer, anemometer, etc.
