I have some black dry mould from an ongoing ventilation problem which has now been solved. I have been told that a product used to be available called Zinzan. I take it that this is the znisser range now. Could you advise if I am correct and which products I would need to carry out remedial work to get a brilliant white ceiling. 5th Nov 2023
Zinzan is not a brand we are aware of, but assuming this is for a plastered internal ceiling we would suggest any mould is treated with Zinsser Mould Killer & Remover.
Prime affected areas with Zinsser B-I-N and redecorate with Zinsser Perma-White Interior.
This can be mixed to many RAL, NCS or BS colours in a matt or satin finish.