1 of 2 people found the following review helpful
Kitchen wall is now a blackboard!,
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This review is from: Ronseal OCBBP250 One Coat Blackboard Paint 250ml (DIY & Tools)
Painted this on top of a kitchen wall in order to turn it into a blackboard. Wall is about 3 meters long, 1.5 meters high (it's half the wall). Did some quick sanding of existing paint then painted on top. Needed two coats, result is great and kids love it! Bought 3 jars of paint and used 2 of them to complete the job. So I would estimate that one jar would give you about 2 square meters worth of coverage, or something along those lines.