When not to use latex paint?

You should not use latex paint in certain situations where oil-based or specialty paint is better. Do not use latex paint on bare wood without primer that blocks tannins, as latex can cause wood tannins and knots to bleed through, especially cedar and redwood, requiring oil-based primer. Do not use regular latex on surfaces that need very hard, durable, glossy enamel like kitchen cabinets, trim, and furniture that gets heavy wear, where alkyd or waterborne alkyd enamel provides harder finish, though high-quality latex enamel can work. Do not use latex paint on metal that is prone to rust without proper rust-inhibiting primer, as water in latex can cause flash rusting, oil-based rust primer is better for bare metal. Do not use latex in very cold temperatures below 50 degrees Fahrenheit, as it will not cure properly, and not in high moisture areas without mildew resistant formula. Do not use latex directly over existing oil-based paint without sanding and priming, as it may peel due to poor adhesion. Do not use interior latex outside, as it lacks UV and weather resistance. So avoid latex on bare wood with tannins, bare metal, existing glossy oil without prep, and when hard enamel needed.