Thanks for your message.
Yes, correct - hydrogen is the only gas soluble in aluminum and this is the reason for porosity because it gets trapped during solidification.
Hydrogen is in water and oils which means that anti-spatter containing such are not good for aluminum welding. This is something that average welding engineers know and obey.
Until now we didn't have any reports of porosity related to ceramic anti-spatter.
The key is to spray just a thin layer.
As a conclusion:
We are mainly in the aluminum business and I strongly believe that the ceramic spray is safe if applied correctly.
MIG WELD GmbH International