Primers create a strong bond on your wooden surface, but not all are made the same. If you apply the wrong formula, you risk exposing your furniture to premature damage or even rot and mold!
Thus, our woodworkers tested and reviewed the best oil-based primers in the market, to help you decide which one you’ll need for your project.
Reviews of the Top Oil-Based Primers
1. Zinsser 03504 Cover Stain
The Zinsser 03504 Cover Stain Oil-Based Primer adheres perfectly over wood surfaces and has stain blocking formula that hides smoke stains. This product’s formula also doubles as an exterior oil-based primer and dries quicker than other brands.
What we liked most about this stain-blocking primer is how thrifty it was to use, as one gallon of it, can cover up to 300 square feet of wood surface too.
It’s one of the best primers for bare wood, but we recommend that you prep the area especially if it calls for repairing a previously painted surface.
What We Like
- Hides stain efficiently
- Quick drying
- Versatile for indoor and outdoor uses
- Best for beginners
What We Don't Like
- Has an odor when applied at first
- Can cause allergies to sensitive users
2. KILZ Original Interior Oil-Based Primer
For interior priming projects, our top pick is the KILZ Original Interior Oil-Based Primer. This brand gets better over the years and has been a standard-bearer of doing a fantastic job in covering stains, especially on interior surfaces.
It does a great job of patching up holes and mimics a final coat of paint that looks exactly like the former undamaged wall. Not only is the KILZ versatile with different kinds of wall surfaces, but it’s also the formula is unique enough to block pungent smells from seeping into the walls.
While it dries in a little less than an hour, we still suggest letting it completely dry for a day before applying another coat.
What We Like
- Dries in thirty minutes
- Solid color consistency
- Blocks stains
- One of the best oil-based primers for indoors
What We Don't Like
- Strong fumes and odor upon initial application
- Sticky and difficult to clean off
3. Zinsser by Rust-Oleum 3609 Oil-Base Spray Primer
If you’re working on objects of irregular shape or those that have a lot of cracks, and crannies, then this Rust-Oleum primer here is your perfect choice.
It makes application easier, and with its impressive spray mechanism. This version of the Rust-oleum product is best for beginners who are working their way around applying primer on complex-shaped materials.
However, it also has common downsides that you should consider before purchasing. Like all other spray primers, the Zinsser by Rust-Oleum 3609 Primer has a limited quantity and needs to be replaced now and then. Also, be careful of over-spraying to a certain area, and we advise only using this primer on small-scale projects.
What We Like
- Convenient usage
- Powerful spray mechanism
What We Don't Like
- Overspraying
- Few quantities
4. KILZ Adhesion Primer
If you’re looking for the best oil-based primer that has excellent adhesion properties to porous and tough surfaces, the KILZ Adhesion Primer is an option that you should consider.
It has a high adhesion quality that can bond tough materials like vinyl, formica, or glass. We used it on an exterior surface and it displayed an even more secure bond. It has a different formula but isn’t compromised in terms of quality.
We also tested the KILZ Adhesion as a primer sealer, and it worked both in creating slick surfaces, and smooth topcoats. You can apply this through brush, spray, or whichever you fund more convenient.
What We Like
- Best used on difficult surfaces
- Easy to use
- Great clean-up
What We Don't Like
- Requires an additional coat for coverage
- Expensive than the other options
5. Diamond Brite Paint 1 Gallon Industrial Oil Base Enamel Primer in Gray 32900
Another exterior oil-based primer that displayed impressive performance based on our testing is the Diamond Brite 32900 Oil Base Enamel Paint Primer. It provides a durable enamel mimicking glossy surface after the finish.
Self-priming paints tend to adhere less on metal surfaces, but since this is best used in the industrial setting, you’ll be surprised with how bonded the primer will look on your paint project. It’s also a trusted base for exterior paint, due to its fast-drying property.
Although this item carries a higher price tag compared to the alternatives listed, its distinct characteristics justify the cost. Thus making it a worthwhile investment, providing added value and benefits that set it apart from the competition.
What We Like
- Easy to recoat
- Creates glossy surfaces
- Dries quickly and hard
What We Don't Like
- Expensive
- Requires multiple coating
6. Zinsser 272479 Bulls Eye 1-2-3 Plus Spray Primer
Not all priming needs require shine, especially when working on matte-painted surfaces. This is where this Zinsser 272479 Bulls Eye 1-2-3 Plus Paint Primer comes in handy.
This spray is made up of a coat oil-based formula that has excellent stain-blocking resistance. It does a great job both when used on interior and exterior surfaces. It blocks stains even those scents as harsh as nicotine, and pungent materials.
And with a few coats, the quality of paint and sealing it provides, whether on a painted metal or painted wood is rather commendable. You won’t have to worry about peeling paint as this primer works both as an oil or latex topcoat.
What We Like
- Dries as fast as thirty minutes
- Multi-purpose primer
- Blocks stains efficiently
What We Don't Like
- Requires careful application
- Doesn’t have shine
7. Kilz Odorless Oil-Based Primer/Sealer
Most oil-based primers tend to work best with properly prepared surfaces free of rust, and peeling paints and this one is no exception. The Kilz Odorless Oil-Based Primer/Sealer blocks stains easily and creates a durable protective coating on interior surfaces.
It’s white pigmented and has a high hiding formula that blocks severe stains such as lipstick marks, pens, and even grease and oil stains.
For better bonding, we suggest letting the formula cure for at least an hour before applying the second coat. Despite its quick drying time, you can expect more adhesion with this tip.
What We Like
- Low odor
- Has extensive sealing properties
- Has a high-hiding formula
What We Don't Like
- Hardly available
- Expensive
Oil-Based Primers: Buyer’s Guide
Surfaces
When choosing an oil-based primer, opt for brands that have a high-hiding formula and are compatible with different surfaces. There are oil-based primers that are only suitable for wood, and or metals, and there are also brands that are multi-surfaced.
Application
Depending on the performance of the primer, you’ll have to apply one or more coats, as its coverage will also vary on the application method and area of application.
Working on inside projects and interior surfaces requires interior primers, but if you are painting on an external setting, then opt for a primer that can withstand harsh weather conditions.
Price
Applying oil-based primer on a previously painted drywall can be a little costly, but some primers come at an affordable price for your preference.
Pick one that suits your wall type and budget. The best trick is to apply it on properly prepared surfaces to avoid wasting oil paints.
Drying Time
One vital aspect when choosing an oil-based primer is the drying time. Depending on your timeline of finishing the project, choose a brand that has a drying time you can work your way around with.
How Long Do You Wait for Oil-Based Primers to Dry?
Generally, some brands promise 30 minutes of drying time. While this is partially true, letting the primer dry for at least 24 to 48 hours is still more advisable. This way, you can ensure a better bond between the primer and the wall.
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Coverage
Modern primers now have solved the common dilemma with paints when used to cover up stains. More often than not, paint looks cheap when used as a cover-up on different materials.
There’s also a tendency for the stains to still show through since it looks different than the other colors and textures on the wall. Oil-based primers do an effortless job of covering up the stains from their base material itself.
However, as much as primer can set a good coverage, it isn’t meant to repair other damages such as structural ones.
Therefore, always ensure that you fix all other problems before starting your paint job. Using primer to cover up wet drywall or furniture pieces, will only cause extreme damage to your project.
Smell
Before starting any paint job, always consider the smell both of the paint, and the primers that will be used. Some primers can lock the smells that have seeped into your walls.
Smell-fighting primers are suitable for homes that house pets or smokers, as they can absorb and accumulate such smell.
Different primers vary in smell, so you might want to check the primer’s label if you’re sensitive to strong fumes, or hesitant to on a smelly task.
Products with low-smell formulations are higher in cost, but it’s the best option to make application easier and more convenient on your end.
It’s more possible to work with smelly primers on exterior surfaces, but if you’re painting inside, always wear protective masks.
Stain Blocker
Oil-based primers with stain-blocking properties are getting more traction now, as it makes the job of repainting, or covering up more efficient.
Not only do oil-based primers with stain-blocking properties hide watermarks or imperfections, but it also seals the area preventing future stains from showing.
Prevention from Rust
For rust-prone areas or walls, choose an oil-based primer that has a rust protection formula. It’s also important to consider rust-resistant oil-based primers as exterior primers, and when priming metal.
Paint Workability
Even the best primers differ in texture and formula, so the rule of thumb is to choose one which will best complement your surface area and patience on application.
It will be difficult to apply on a porous surface if you have a very thick oil primer, so it’s better to use a spray primer like that of the Rust-Oleum.
Color
Oil-based primers come in different colors, from white to gray and beige, however not all brands cater to an array of colors, so this is where it’s gonna be tricky for you.
Choose a color that will not bring the undershade of the main paint coat. The best oil is the one that will do a great job hiding stains rather than highlighting it.
Capacity
Some primers are huge in volume and can cover even up to 400 square feet of the wood surface. Yet this metric will still depend on the surface you’re applying the primer.
If you’re working on a porous wood, then the surface will absorb the primer right away, making you need to apply more, thus lesser surface capacity to cover. A spray primer however has a smaller capacity than traditional primers.
Why You Should Use Oil-Based Primers? + Key Advantages
Oil primer paints are a favorite amongst professionals because of how substantial it is in any paint job.
Make sure to prep the surface correctly to make the oil-based primer adhere properly, and seal imperfections and visible pores. The first coat should be done properly to create strong bonding between the wall and the primer, as well as the primer and the paint.
Oil-based primers are also good bases compared to water-based primers. Here are some other perks of using it:
- Creates an even finish when used to fill small pores and imperfections.
- Coats wood surfaces
- Allows paint to dry faster
- Seals exterior projects effortlessly
- Fends off mold and mildew from growing onto wood surfaces
Despite these advantages, you’ll need a lot of ventilation when working with oil-based primers as it may be a little difficult to handle. It’s also a necessity to wear a mask to prevent inhaling toxins.
Different Types of Primers
Oil-Based Primers
Oil-based primers are best used as sealants on interior and exterior surfaces. There are products that are labeled as an “interior and exterior primer” that can seal both porous surfaces.
There are also ones that properly prepare glossy surfaces, depending on their type. Generally, these are more expensive since it has properties that absorb into the wood fibers.
Water-Based Primer
Water-based primers are made up of water-soluble resins and have lower VOC (Volatile organic compounds) levels, so it has fewer fumes and is less harmful than other primer paint.
A water-based primer creates more accent on colored surfaces, and even a single application can create a gloss on the area.
Latex Primers
Latex primer is a water-based primer, that has latex resin as its primary binder. It’s formulated to improve the binding of latex-based paints, which are popular for their quick-drying properties.
Using latex primer with latex paint improves adhesion and durability making these two the perfect combination.
Shellac Primers
Another type of primer that’s versatile is the shellac primer. This primer is made up of a special resin that emanates from a female lac bug [1].
Shellac primers seal odors and block stains, making them very much effective when applied on walls or surfaces that are affected by smoke and water damage.
Tips & Tricks for Applying Oil-Based Primers
Oil-based primers make every surface look incredibly flawless, even damaged ones. One culprit to why it won’t create the bond as strong as it promised is due to some necessary application tips that you might have missed:
- Ensure that the oil primer paint is well-combined. Often, when left for a long, it will cause the oil to separate from the formula.
- Grab another container to pour the mixture, so you can sift the dirt out.
- To thin out the primer, use a paint thinner or mineral spirits. Do not mix with water.
- Use a high-quality brush when putting primer on oil paint. A low-quality brush will shred and the sheddings can stick to the painted surface.
- Let each coat dry properly before applying another coat.
What Type of Primer to Use on Top of Oil-Based Paint?
When deciding on which primer to use, keep in mind that you can only plaster oil-base primed walls with the same primer kind or on oil-based paints, or it won’t bond properly. Using an oil-based primer on oil-based paint promises a greater bonding capacity.
However, if you’re dealing with latex paint, any type of primer such as an oil-based one will stick to create a great adherence. A latex bonding primer is also advisable if you are priming paints atop a matte surface.
FAQ
Are fumes of oil-borne primers harmful?
Oil-borne primers naturally have volatile scents that may prompt short illnesses such as nausea, skin irritation, and headaches.
It also contains solvents that are highly flammable such as turpentine and mineral spirits which can immediately create flammable vapor, and spark a flame. Therefore, we recommend working with oil-based primer paint on a well-ventilated area to avoid triggers of ignition.
Can you use oil-based primers on top of latex primers?
Generally, you can use oil-based primers on top of latex primers but it’s important to check the adherence before proceeding with the entire thing.
To check, dab an oil-based primer atop the latex and wait for a few minutes to see whether it will crack or peel. If not, then it means it’s safe to use such brands together.
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Our Top Pick For an Oil-Based Primer:
Zinsser 03504 Cover Stain
Any of those that we’ve included in this list of the best oil-based primer products speaks true to its qualities.
But what impressed us during the testing stage, was finding all the key factors we’re looking for in an oil-based primer: stain-blocking properties, quick drying and thrifty, and affordable in just one with the Zinsser 03504 Cover Stain.
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