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can you paint latex over rustoleum primer | Spanglers – General Blog News

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can you paint latex over rustoleum primer | Spanglers – General Blog News
can you paint latex over rustoleum primer | Spanglers – General Blog News

What is latex paint? This is just another word used for vinyl styrene paint or water-based acrylic paint. The word latex is used for these types of paints, as they all possess chains of artificial polymers that perform similar to actual natural latex. Acrylic paint is also another name used when referring to latex paints. You may ask, can I use latex paint over oil-based primer? Read further and discover how to do this and how to create a perfect result.

Can You Use Latex Paint Over Oil Based Primer

Yes, you can use latex paint over oil primer, but you cannot apply an oil-based paint over latex. For the latex paint over oil primer to be successful, you need to first ensure that your painted surface is properly dry. This works best, as there appears to be no natural characteristic in the oil-based paint that will prevent the second layer of latex paint from being applied.

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With all water-based paints, water is the agent used to combine the coating and the pigment. On the other hand, with oil-based paint, oil is the agent used. When using oil-based paint you will notice it has a strong smell and has an oily feeling, but after a few days, that will all go away. So, when the paint has fully dried, there is no more oil present on the surface and the smell would have also disappeared.

Like with all painting jobs, surface preparation is important. This means that you will have to sand the surface down, clean it, and then clean it again using a damp clean cloth. Make sure you use a primer coat before you paint with the latex paint.

Not all surfaces need to be primed, but for this paint job, it is essential. Remember, that any gloss finish painted surface does not easily take a second coat of another painting. So, if you intend to apply numerous layers of oil-based paints, it would be advisable to scrape off any paint first.

latex over oil primer

Latex Paint Explained

In the past, the formula for this paint was classified as ‘Latex’. This is because they were originally products of rubber, which existed in various forms. These rubber products make up the resin element of the paint. Over the years this rubber base was slowly replaced with water-based elements. Today, these paints are suitable for all types of painting jobs like walls, ceilings, kitchen tables, and much more. Here are the main varieties of Latex Paint:

  • Vinyl Acrylic
  • Alkyd Modified Latex
  • 100% Latex Acrylic

Out of these, the 100% latex acrylic has proved to be the best of the three because it binds extremely well to surface material and also keeps excellent color.

Vinyl acrylic paint is cheaper than all the others and is preferred for indoor applications, particularly on walls. Lastly, the alkyd modified latex is found to be excellent when applied on exterior surfaces and holds up well against varied weather conditions.

Oil Primer for Latex Paint Explained

A primer is a special paint product that functions as a base coating before the finish coat is applied. The purpose of a primer as a foundation paint is that they adhere perfectly to the surface and their formulation gives a uniform, and smooth quality. Due to their excellent adhesion characteristic, this formulation can guarantee the finished coat will not flake or peel after it has been applied.

There are several different types of primers on the market, but oil-based primers appear to be the most popular. They are used by painters as well as woodworkers because they have proven to be effective and reliable over the years.

The oil-based primers have proven to be reliable on outdoor as well as indoor surfaces. Before you apply the oil primer latex paint, you first need to make sure the surface is clear with no prior coating.

latex paint over oil based primer

How to Paint Latex Over Oil-Based Primer

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Can you use latex paint over oil-based primer? When doing this, it does not have anything to do with the base layer being oil-based, but more that it is merely one paint job over another. We all understand that oil-based paints give a glossy finish, so the main issue here is to concentrate on the gloss finish and not so much on the contents of the undercoat.

No matter what type of paint you may use, you will never have the same adhesion to your surface as when you apply your paint over a primed area. Bear in mind that a lot of the work involved in the preparation, for as soon as you have properly prepared the surface it is easy to apply the paint onto your surface. Now you know the answer to this question, can you use latex paint over oil-based primer?

Remove Any Old Gloss Paint

Using fine-grit sandpaper you can remove all old oil-based paint from the surface, this will ensure better adhesion. Make sure all the shine or gloss has been removed as a glossy finish, like dirt, will prevent your finish coat from properly sticking. If there are any loose pieces of paint on the surface remove it with a putty knife or similar tool. Now that the surface is clean, fill any holes or gaps by using wood filler or wood putty.

Remove Any Debris

If there is any old debris left on the surface, this will have a detrimental effect on the latex sticking properly to the surface. Some projects will allow you to apply latex over latex without the proper cleaning exercise. However, this project is not one of them, as you need to do a deep cleaning of the surface.

You will need to use TSP Heavy Duty cleaner, which you can add to a bucket of water to make sure all debris is removed. This product is available in most home improvement and hardware stores. Simply mix in warm water and apply with a clean cloth. Apply the paint only after the surface has dried out fully.

Clean the Surface With a Clean Cloth

Once the surface has completely dried out, use a tack or any cotton cloth to wipe the surface down. A tack cloth is a cheesecloth that has been impregnated with beeswax and is inexpensive. The sticky surface of the cloth is ideal for lifting off any loose dirt that may still be on the surface. When rubbing with the cloth do not apply too hard pressure, as this will result in the wax coming off the cloth and depositing onto the surface. If this happens, it is then exceedingly difficult to remove the loose dirt.

Now You are Ready to Paint

Now that the surface is thoroughly clean and dry, you can begin to paint. Do not use excessive amounts of paint on the brush. Then begin painting slowly with even strokes, constantly maintaining a wet edge. When painting, use only a high-quality paintbrush to ensure the best results. You can give the surface a second coat after two hours.

latex paint over oil primer

What Surfaces are Coated with Oil-Based Paints

In the USA, oil-based paints have almost been completely phased-out since 2005. So, we may then ask the question, what then has latex paint over oil primer got to do with us in 2020? If you have bought an old house, or if you are still living in an old house, then your house certainly will have oil-based paints as latex paints were only instituted in the 1940s.

Even if your house is fairly new, there may be areas where oil-based paints were used seeing that they were not banned. You are still able to buy oil-based paints today but in smaller quantities. Many professional painters still prefer oil-based paint today, as it gives you a much smoother and harder finish. Here again, is the answer to, can you paint latex over oil primer.

How do you tell what surfaces in your home has been painted with oil-based paints? Once the paint has been on the surfaces for a length of time, it no longer feels or smells like an oil-based paint. All oil-based paints have the property of self-leveling. Once you have applied the paint, it flattens and levels by itself and leaves no gaps, holes, bubbles, or brush marks. Window and door frames painted with oil-based paint leaves a hard and smooth glass-like finish. So, what types of structures or areas require a smooth, durable finish coating?

  • Baseboards
  • Window trims
  • Door casings
  • Fireplace mantels
  • Crown moldings
  • Shelves
  • Kitchen cabinets

Types of Primers

All primers are characterized subject to their main components. A primer is a compound consisting of various substances such as shellac, water, and oil which form the basis of paint. Let us now consider a few of the more common types of primers used.

oil primer latex paint

Latex Primers

If you are looking to get your drywalls ready for a painting project, then Latex Primers are your best choice. Latex Primers are fast drying and usually dry fast by 3 to 4 hours. They are different from oil-based paints, as they appear much less brittle and provide you with an exceptional finish on surfaces that are hard to paint like pinewood. Not only is it good to use on wood, but it can also give you a great finish on brick, galvanized metals, and concrete surfaces.

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If your walls or surfaces have been marked or stained by smoke, pens, or crayons, latex primer does an excellent job of blocking out those marks. Although it is fairly effective for this, it is still not as good as oil-based or shellac-based primers for blocking out those stains.

Latex primers are water-based, and as such, they include low or no levels of volatile organic substances, which makes them excellent for the environment. Another advantage of this type of primer is they are easy to clean up and only requires water and a little soap to make an end to any nasty spills.

Latex primers are also much cheaper and will resist peeling, flaking, yellowing, and much more. However, when it comes to painting various types of wood that are found in damp areas, we recommend that you use acrylic primers instead.

Oil-Based Primers

Oil-based primers have been on the market for decades. They are extremely popular and work great with latex or oil paints. These primers are also very versatile and can be used on metals, wood, on surfaces that have been painted or unpainted, and is also an ideal primer for exterior or interior walls.

Most of the oil-based primers are excellent for covering up stains and prevent them from showing after you have applied the new topcoat of paint. Stains they block include nicotine, water, and ink. The oil-based primers are excellent when applied to bare wood, as the properties of the formula allow the primer to seal off the porous surfaces of the material easily. When used on certain types of wood such as cedar and redwood, it stops the wood from releasing tannins that are harmful to the environment.

One major disadvantage of the oil-based primer is its drying time, as it takes a long time to cure completely. Most of the oil-based primers take around 24 hours to dry and during this time it is releasing toxic (VOC) fumes that are harmful to plants, pets, and, of course, humans when inhaled over long periods. Furthermore, when cleaning your applicators and brushes you need to use solvents or thinners that also emit toxic fumes.

When using oil-based primer, it is not recommended you apply it to any masonry surfaces. A great benefit of using an oil-based primer is that once it has dried properly, you are left with a durable and smooth finished surface.

Shellac Primers

Shellac primers have been used for hundreds of years and are said to be the best primers when used to seal off stains caused by rust, smoke, or water damage.

Similar to the water-based primers, these primers are excellent when used to seal wood surfaces and stop bleeding and tannins from escaping. They have an elastic property that makes them an excellent choice for use on plastic, metals, or plaster surfaces.

A major advantage of using shellac primers is that they are extremely fast drying and can be dry within an hour. Therefore, they are perfect for use on projects that need to be completed in a short time. When it comes to cleaning up you will need to use denatured alcohol.

Safety Precautions

As many primers and paints emit toxic fumes when applied, they can be hazardous to one’s health if exposed over long periods. Always be careful and work outside or in a well-ventilated space allowing the air to circulate. We also recommend that you wear protective equipment like masks, gloves, and goggles.

Can you paint latex over oil primer? Yes. If you are going to paint a lighter color over a darker color, it is always advisable to prime the surface. A coat of primer is always a necessity when you paint with semi-gloss or eggshell paints, as they tend to leave an uneven finish if not primed.

If you have walls that only need minor repairs, then you can prime only the spots or areas where the damage is found. If you have walls that need to be patch plastered, we recommend you use True EasyCare Ultra-Premium Interior Primer/Sealer.

Using latex paint can provide amazing results through a unique finish. When using this paint, it is important to understand the priming process, and how it can be used over an oil-based primer. Happy painting!

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