Do I have to Prime before I paint?

Do I need to Prime? Most likely the answer to that question is ...no actuality. Priming is needed for two main reasons. Adhesion and coverage. So if your painting project is a simple repaint of you bedroom walls and ceiling with out a strong color change Priming is not really needed.
The paint on the walls before you start is likely a flat, or and eggshell/satin finish. Sometime even a semi-gloss. Todays paints will bond to these finishes with out the time and additional expense of priming.

Coverage is the most likely problem you could have in an repaint. One hint that could help is that "the darker the color the better it covers " is NOT the case! As a matter of fact very dark colors often require additional coats. I will not bore you with the details but it's the way paint is tinted today.

One clue you can use to determine how well your color selection will cover is look at the "base" of the paint that is used to make your color selection, The "Base" is the paint before any tint is added to it to make your color selection. A "deep" or an "ultra deep" base paint will have coverage issues, regardless of what the final color you have selected is. In that case 2 or more coats could be needed.

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How to paint a door different color on each side

So the kids used crayons on your walls? You can fix that.

The kid's found the crayons and have just made an art project of their bed room walls. Clean it off? Sorry there is a 99% chance this is a waste of time. Your going to have to repaint and do a better job of hiding the crayons. Step one is lightly sand the crayon marks on the wall. This not to remove all of the crayon marks but simply get some of it off so the texture of the crayon marks do not show through your fresh paint. You will need to prime. If your facing a project as large as pictured you will need to prime the entire wall. Some latex primers will seal the marks out but ask the paint supplier for their recommendation for sealing crayon marks. It is a possibility you will need to use a oil based primer. Oil based primer/sealers are the best for this job but do present there own set of problems. The smell is likely #1 on the hassle's of oil based primer/sealers,#2 slow drying times and clean up. So do some work and find a latex primer/sealer that will do the job...

Oil or latex paint for that DIY PROJECT.

Oil-based paints offer superior durability and smooth finishes, while latex paints excel in ease of use, quick drying, and environmental friendliness—each has distinct advantages depending on the project. When choosing paint for a home project, understanding the strengths of oil-based and latex-based paints can help you make the best decision for your needs. Both types have unique properties that cater to different surfaces, environments, and user preferences. 🛢️ Advantages of Oil-Based Paints 1. Exceptional Durability and Hard Finish Oil-based paints form a tough, smooth surface that resists wear and tear. This makes them ideal for high-traffic areas, trim, doors, and cabinetry where frequent cleaning or contact occurs 9F742443-6C92-4C44-BF58-8F5A7C53B6F1. 2. Superior Adhesion They adhere well to surfaces that might challenge latex paints, such as chalky walls, stained wood, or previously painted surfaces. This makes them a go-to for restoration or repainting jobs 9F742443-6C92-4...

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