Paint tins talk about drying, but there are really three stages. Touch dry simply means the surface is dry to the touch. The film is still fragile at this point: it has only just begun the full drying and curing process. Recoat time is when the next coat can go on without dragging or lifting the first. Cured is when the whole film has reached its full hardness, adhesion and scrub resistance. In normal conditions our paints are touch dry in about 30 minutes and ready to recoat in one to two hours. Curing takes much longer: on our self-priming paints, full adhesion builds over seven days, and the film carries on hardening after that. The gap between “feels dry” and “is hard” is where most disappointments happen: pictures go back up, a chair is pushed against the wall, a mark is scrubbed off a week later, and some of the finish comes with it.
Water-based paint is a dispersion of tiny binder particles, with pigment, in water. Drying happens in two phases. First evaporation: the water leaves quickly, while slower co-solvents stay behind for a while on purpose. Then coalescence: as the last liquids leave, the soft binder particles are pushed together and fuse into one continuous film. That fusing and hardening carries on well after the surface feels dry. Temperature and humidity matter. Cold slows everything down, and in very humid conditions water leaves the film more slowly, which can stall the process. Good ventilation and a steady, comfortable room temperature help paint dry and cure as it should.
Plan your project around the cure, not just the drying. Recoat when the tin says, not before, or the second coat can lift the first. Then treat the finish gently while it cures: no scrubbing, no ordinary masking tape on fresh paint (a tape designed for freshly painted, delicate surfaces, such as the Q1 sensitive tape we sell, is fine), no heavy objects on new shelves or cupboard tops, and space around freshly painted doors and furniture so nothing sticks. Kitchens, bathrooms, cupboards and radiators deserve extra patience because they take the most wear. If you are painting a radiator, let it stay cold while it dries and cures as the product guidance says. And if paint still feels tacky long after it should, the cause is usually cold, damp, thick coats or a problem with the surface underneath; our problem-solving guide on tacky paint covers what to check.
Our times assume normal conditions. Film thickness, temperature, humidity and ventilation all change how quickly paint dries and cures.
