While some people think that you should avoid oil-based paint over a water-based primer entirely, if the primer is allowed to dry completely, it can work well and produce a great end result.
People use oil-based paints because they allow more time for the artist to adjust them before they set after having been applied. Works made with oil paints are also more resistant to abrasion than other types. And oil paintings tend to have a smoother texture than paintings made with other media.
There are many water-based primers that work well with paint if used this way and allowed to dry properly, then they will work well with your paint and help them bond to the surface that might otherwise fight. Where in the past oil-based primers had to be applied over oil-based paints and latex primers over latex paints, now you can switch between the two if the surface is well prepared.
Typically, latex primers are used for drywall and cork, but there are some notable exceptions. Oil-based primers are also very versatile and can be used on metal, wood, painted or unpainted surfaces, and are ideal primers for exterior or interior walls. Shellac is also best for plastics, plaster and even galvanized metal due to the elasticity of shellac primers. Latex primers are not only suitable for wood, but also for brick, galvanized metal and concrete finishes.
Uses of Alternative Paint Types
Enamel paint is commonly available as exterior and high temperature paint, as well as some interior paints intended for high traffic surfaces such as kitchen cabinets or furniture. This is why oil paints are used for areas such as kitchens, bathrooms, trim and other exteriors, while latex paints are used for interior painting, especially when used by amateur artists.
So the type of paint or preparation you need to use will depend on what you already have. No matter what type of paint you use, you won’t get the same surface adhesion as when you apply the paint to the primed area. Remember that any surface with a glossy finish does not require a second coat.
If there are loose pieces of paint on the surface, remove them with a spatula or similar tool. You will need to dip a cotton swab in acetone to check the condition of the painted surface: the oil will usually remain intact and the latex will dissolve a little. Select the spot on the surface you want to paint, dip a cotton swab or rag in denatured alcohol (acetone works too) and rub it.
Tips for Improving Adhesion of Paint
To ensure good adhesion, remove as much of the shiny surface of the oil coat as possible with sandpaper and use an adhesive primer before applying at least two coats of new water-based paint. Before applying oil primed latex paint, you must first make sure the surface is clean and without any pre-coating. In order for a latex over oil primer to be successful, you must first make sure that the painted surface is dry enough.
Keep in mind that most of the work is in preparation, as once the surface is properly prepared it will be easy to apply paint. When working on previously painted surfaces, it is equally important to know what type of paint was originally used because the two types of paint may not bond properly. It is important for homeowners to determine if their paint on trim, walls, and ceiling is an oil-based or water-based latex.
Experts believe that matte latex paint is best for plastered ceilings and walls in living rooms, bedrooms and dining rooms, as well as ceilings and plasterboard walls in kitchens and bathrooms, if the walls and ceilings are new and unpainted. Paint can be used, historically it has been used in bathrooms, but latex paint has come a long way, oil-based interior paint is rare these days and probably not what most people do – you still want to use (A bit finicky and smelly when used, dirtier when cleaned).
Hydrated Paints Easier to Apply and Let Dry
In general, water-based paints are easier to apply because they are easy to clean, dry quickly, and do not emit high levels of volatile organic compounds, which often require good ventilation and air movement during application. Oil paints provide a smooth, richly colored surface with excellent gloss and durability, but are difficult to process due to their chemical composition.
The better the ingredients in your oil paint, the better it will show up with a water-based primer, but as long as you use a decent plaster-based product, even the cheapest oil paints should work without problems. While you let the primer dry. You can use plaster as a primer or primer for oil paintings, but you should always let the plaster dry completely before you start applying layers of oil paint for the best possible results.
When the paint is completely dry, there will be no more oil on the surface, and even a strong smell will disappear. Most water-based paints and primers begin to dry immediately and are difficult to remove completely. They are water-based and have all the benefits of a water-based product, but they stain and flow like butter, resulting in an incredibly smooth finish.
Lightly sand the oil primer with fine sandpaper to make the surface smooth so that both paints blend. Make sure you use a wire brush for an electric drill to remove paint particles, dust, dirt and soot.
For painting enamel over stain and varnish, a primer with excellent adhesion and high film is required. Many professional painters even prefer latex oil for a smoother, harder surface with no brush marks, gaps or bubbles. When painting various types of wood in wet areas, it is recommended to use acrylic primers instead.
