My CCR Instructor does that whenever he goes to Dahab, he’s actually there right now teaching another instructor friend mod2 so I‘m sure he brought a lot with him— probably with like 20 Kilos of it in his room
Most of the (ccr) clientele actually at the host dive shop (Planet Divers) also bring their own Sofnolime
Where in Egypt are you going to dive?
What airport do you land at?
How much Sofno do you expect to need (with buffers) for the dives you’ll do?
The main worries would be checking it in (proper labeling before you fly according to where you fly from..), and the extra weight
if you fly into Hurghada or SharmElShikh almost noone will check you
If you fly to Cairo, some probability customs will wanna have a short chat with you, you play cat and mouse with them and once you tell them you are here to dive they’ll let you go without import charges (not a guarantee tho)
I haven’t done it (sofno) myself, but basing on my experience flying (as an Egyptian, so less „curtesy“ from customs than “tourists“) with my dive equipment from Germany to Egypt