Tech Info / HIREC® Shows High Durability in Temperature with Humidity Cycle Test

HIREC®: Super Hydrophobic Coating for Antenna, Radome and Other Public Infrastructure


Temperature with Humidity Cycle Test

The change of the contact angle of a HIREC® coated surface was measured in Temperature with Humidity Cycle Test. The test was done for temperature range from -30°C to 70°C, humidity up to 90% R.H., 12 hours/cycle, and 100 cycles. The test result showed the HIREC® has a stable performance in the temperature with humidity cycle test and has high durability.

Measurement Conditions



Test plate :  HIREC® coated plate
Measurement:  Contact angle (degree)
Cycle time:  12 hours per one cycle
Duration:   100 cycles
Temperature change:  20°C - 70°C - -30°C
Humidity change:   90% R.H. at 70°C, 50% R.H. at 20°C

 



Test Results of Contact Angle Change in Temperature with Humidity Test

 



HIREC® shows no abnormality during 100 cycles in the temperature with humidity cycle test

Initial contact angle of HIREC® was 152°.
The contact angle was stable during the temperature with humidity cycle test.
The contact angle was 149° after the test.

HIREC® maintains highly durable super water repellency in the temperature with humidity test.