[s-cars] What ceramic seal does...

[CyberPoet]

Ceramic sealer (probably Quick Seal brand, the most common) is a
combination of ceramic micro-fibers and copper slivers of various
sizes, designed to flow through the holes and deposit themselves there,
interweaving to fill the hole over time as the fluid passes through it.
Note that the ceramic parts are microscopic (below the point of being
visible with the naked eye). This interwoven solid becomes a permanent
seal. If the loss is gone I would immediately flush your oil system &
do a full oil & filter change (since the loss was such that the
materials which didn't hit the weave passed into the oil, capable of
scoring the cylinders), and flush the cooling system (to remove any
excess, which over time will build-up on the water pump and interior of
the radiator passages).

Cheers!
=-= Marc Glasgow