On Wednesday, 5 February 2020 11:18:37 UTC, ss wrote:
Burst pipe caused water damage to ceiling, been drying out for last 4
days and the ceiling appears to be intact apart from water mark staining.
I have ordered some stain block which I will use before repainting.
Should i just go with that or should I give the ceiling a clean first
possibly with a mild bleach solution.

Doesn't much matter, unless it's really caked with dirt. Bleach would add salts, not a plus really. Regular alkyd undercoat is enough to block stains in the majority of cases, use satan blocker for when it doesn't.


NT