The motor is water proof/ water resistance?
All motor parts (beside the bearings) are made of stainless steel or coated; even the stator is coated with electrical varnish for durability.
The motor can handle splashes of water without any problems, only the bearings can suffer, the motor is not waterproof.
For extra protection we suggest to add protective cover (assuming the motor is mounted outside and it Vulnerable to a weather conditions).
We have customers that uses our motors with success on an open frame for years without any additional protection.