W
White Room
I think were splitting hairs now.
Both will work, I use a lot of bathroom paints which tend to be shinier than normal emulsion, and I really do see the difference. Next time you paint just give sealers a go, see what you think.
Going to have a look at what British Gypsum they say about sealers.
Your probably right, either one will do the job and BG move the goal posts as they seem fit at time especially there Thistle Uni-Finish but thats another thread.