"Encapsulant" Natural Recordings by Native Speakers
A material used to encapsulate or surround another substance, often to protect it from chemicals, moisture, or other external factors. Examples include plastics, resins, or waxes used to encapsulate electronics, pharmaceuticals, or food products.
Encased refers to being surrounded or enveloped by something, often in a protective or confining manner. It can also mean to put or place something within a container or casing, such as wrapping a gift in a box or encasing a hard drive in a metal casing.