Two side-by-side cellphone PCB’s are immersed into water. The Repellix coated PCB (right) appears silvery,
as if a force field were pushing the water away. What we are observing is the reflection of light from the air/water meniscus layer surrounding the Repellix coated board.
As the Repellix board is removed, it remains completely dry, in contrast to the uncoated PCB which wets from the immersion.
Different angles show the effect from alternative viewing conditions.
In an independent test, Repellix was compared with a vapor deposited C10 fluorosilane hydrophobic self assembled monolayer (SAM) coating on silicon. The contact angles were noticeably different, with Repellix offering the highest angle. The static water contact angles were: Untreated silicon= 58o, the C10 SAM= 110o and Repellix= 147o. The Goniometer images for the advancing and receding contact angles showed Repellix to have superior performance with a 1 degree hysteresis while the SAM exhibited a delta of 37 degrees.
Repellix is an exciting new technology that offers:
While retaining the ability to
Without the extra costs of: