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 the 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: 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
The initial contact angle of HIREC was 152°.
HIREC maintains highly durable super water repellency in the temperature with humidity test.