is a water inlet valve water resistive by design?
The solenoid of the valve will be partially resistive but will also be inductive as it is a coil. This is pretty much irrelevant to your problem.
The solenoid coil is potted and, provided the potting is not cracked, is completely waterproof apart from the 1/4&quot; spade terminals. If the outside is dry and the terminals are dry then it's ready for action.

Sorry, I've re-read your question by &quot;water resistive&quot; you meant resistant to water. I took it to mean electrical resistance for some reason.