Dry Crack Resistance Tester

A special instrument designed and manufactured according to the provisions of the initial drying crack resistance test in GB9779 "Clad architectural coatings". It mainly uses the determination of the initial drying crack resistance of clad architectural coatings. The instrument uses an axial flow fan to supply air, and the wind speed can be adjusted steplessly.

Model QKL, wind speed 3 +/- 0.3m/s, conforms to GB/T 9779, architectural coatings and putty initial drying anti-crack test, automatic shutdown, visual crazing

According to GB/T9779 design, the wind speed is 3 +/- 0.3m/s, the timing range is 0.01 seconds-99 hours and 99 minutes, the structure includes axial flow fan, wind tunnel, test frame, air volume control device, Timer, anemometer, suitable for Coating and building putty initial drying crack resistance test.

Edge length 150mm, edge angle 30 °, maximum lift 20mm, rising rate 3mm/min, in line with JG/T157-2004, automatic dynamic test, observe the crazing width to 0.02mm

Structural axial flow fan, test wind tunnel, test frame and air volume control device, Timer, anemometer, Timer delay range of 0.01 seconds to 99 hours and 99 minutes, in line with the standard GB/T 9779-88.

GB/T 9779 standard, wind speed 3 +/- 0.3m/s, automatic timing shutdown, visual inspection of crazing, axial flow fan and wind tunnel structure

According to the standard HG/T 4343, the actual concrete cracking cracking situation was simulated, and the ability of the surface coating to resist film damage caused by concrete cracking was measured.

Equipped with a 150mm long top edge with a 30 ° angle, with a maximum lift of 20mm and a rise rate of 3mm/min, it is suitable for dynamic anti-cracking testing of putty and similar materials. Its motor-driven top edge rise system is lightweight for easy evaluation of anti-cracking performance.

Using 100W axial flow fan to supply air, the wind speed can be stepless adjustment, in line with GB/T 9779 standard, suitable for the determination of the initial drying anti-cracking performance of laminated architectural coatings.