I need a 40 square meter wall with Lecablock painted and want it as cheap as possible because I see the wall once every 10 years. Thought about painting directly on the wall but the blocks absorb paint so I need some plaster on it. Is it possible to mix up a thin slurry and brush it on and then paint, or do I need to plaster at a specific thickness? As I said, I see the wall once every 10 years and only use the house to store old things that we don't know if we'll need within 10 years.
