You have likely heard throughout your life that oil-based
paints cannot be mixed with other types of paint. At the same time, you may have been told that you can use latex paint on top of an oil-based primer. Both of these beliefs are true, which may at first sound confusing. The facts, once broken down, are far less confusing than they first appear. Oil-based paints have been used for centuries, and despite numerous innovations, a few facts have remained prominent in the artistic world. The first of these is that
oil paints take a long time to dry. Modern oil paints dry much faster, however, they still dry at a different rate than latex or acrylics. Furthermore, if you were to use an oil paint over latex, the new paint will expand and contract at a different rate than the underlying layer, causing it to crack. Latex will not properly stick when applied directly on top of an oil-based layer without preparation, and may easily crack or peel. There are many reasons to use latex paint over an
oil primer, and the results are a strong, lasting surface. As a general rule, latex primers are used for drywall and soft woods, although there are a few notable exceptions. Oil primers and paints take longer to dry and require additional ventilation, meaning a blend of latex and oil can reduce time and discomfort without sacrificing durability. While some brands of primer are able to work universally with both oil and latex paints, there are
certain times when an oil-based primer is more efficient than a latex primer. These instances include: Oil-based primers take at least eight hours to dry. You may have to lightly sand the primer over smooth wood surfaces with 180-grit sandpaper to provide an easier bonding surface. Be sure to wash away any dust caused by the sanding and allow the area to dry before adding your paint. As a general rule, two evenly applied layers of latex paint will be required over the primer. Allow between two and four hours for each layer to dry. A room will take approximately 16 hours of drying time between the primer and two layers of latex. This does not include the drying time after cleaning, nor the time required for the painting process itself. However, you may spread the project over a period of days, so long as the job is completed within two weeks of applying the primer. Additional ResourcesToday’s Homeowner offers a guide further discussing the differences between oil, latex, and shellac-based primers. Matt is a professional painter who owns and operates his own painting business, specializing in interior and exterior house painting.
The product in question Does Kilz Oil-Based Primer Block Stains Well?I have used Kilz oil-based primer many times in my painting career to seal over tough stains on drywall that would otherwise bleed through latex paint. The primer bonds really well with latex paint while sealing the surface to prevent annoying stains from leaking into the top coat. I use Zinsser Cover Stain primer the most because I can use it for my exterior projects too, but for interior priming, Kilz Original is another excellent option that does what it's supposed to do. The primer also sands very easily into a fine powder when fully dry, which takes about one to two hours. In this article, I cover some of the pros and cons using this primer over the years. Oil Primer Smells NastyLike most oil primer, this stuff smells horrible, even the low VOC addition. A painting respirator is definitely needed if you're spraying and rolling it on walls and ceilings. The odor is very strong and intoxicating if you don't wear a mask. Ventilation is important. I always open windows and set up a fan for air circulation when using solvent-based products indoors. Most people reach for water-based primer to bypass the strong odor of oil-based coatings, but water-based products don't always do the job. There is a newer and less smelly water-based product called Kilz Max that's supposed to perform similarly to the original oil-based version, but I haven't personally used that product yet. Most water-based products are ineffective for covering water stains on drywall. I do know that Kilz 2, a water-based primer, doesn't work well for covering tough stains, and it won't work at all for covering water stains. Oil primer smells bad, but it always seals surfaces the best to prevent stain bleed-through. Priming Nicotine StainsKilz (oil-based) has worked really well for me in the past for priming nicotine stains. Painting over smoke-stained walls is difficult without primer because nicotine seeps right through paint if the surface isn't primed first. I've used this product several times on walls and ceilings covered in brown stains from smoking. The primer was applied without even washing the drywall first, and the stains never bled through the paint. Using a latex primer over nicotine stains usually doesn't work. While there are some water-based products that claim to seal out smoke stains, I recommend using oil primer because it's worked for me every time without fail. You can also use alcohol-based, BIN shellac primer, which works great too, but Kilz Original is the cheaper alternative and does the same thing. Brushing and RollingOil primer is very messy, and Kilz is no exception. The consistency of the material is thinner than latex paint and sprinkles everywhere when brushing and rolling. If you're rolling this product, the flooring beneath must be carefully protected. Wearing a long sleeve shirt is a must too otherwise your arms will be covered in sprinkles. The best roller sleeve to use with this product is one that's lint free. I use the soft woven rollers from Sherwin Williams, which are lint-free. Purdy White Dove rollers are great too, but they cost more and are pretty much the same as the one from Sherwin Williams. Kilz works well as a surfacer for priming bare wood indoors. Latex semi-gloss paint sticks well to it, and it sands nicely after it fully dries. Oil-Based Kilz for Priming CabinetsIn the past, I have used Kilz primer (oil-based) for priming stained cabinets too. Water-based primer should never be used on cabinets, in my opinion, unless the surface is already painted with latex paint and in good condition. The paint dries too soft, and it usually doesn't seal the surface like oil does. This product works well on sanded oak cabinets. Oak holds a lot of tannin that bleeds into paint very easily without good primer underneath. Two coats works best, sanding between coats, to ensure a solid seal for paint. I prime all of my cabinets with two coats of BIN shellac primer because it levels better than oil primer and dries with the same hardness, if not harder. BIN also dries faster, typically in less than one hour for the next coat. On cabinets, if I had to choose between Kilz and Cover Stain, I would choose Cover Stain for a step up in quality, but either one works fine. Never use Kilz 2 on cabinets. Questions & AnswersQuestion: I understand that the basic rule of thumb is to avoid layering oil based paint over latex paint. However, I just painted Killz restoration interior primer over old paint in a failed attempt to lock the tar/nicotine tar from bleeding through. So my question is very specific. Since Kilz Restoration Primer is uniquely different from other latex primers (acts like a shellac type paint), can I layer Kilz oil based primer over Kilz Restoration Interior Primer? Answer: Kilz Restoration primer, formerly Kilz Max, is a water-based product that can be top coated with oil-based and latex paint. My concern is how well the Kilz Restoration, or the layer underneath that, is bonding with the surface. If the latex primer's scratching off easily with your fingernail, or rubbing off, I would strip it off and prime with oil primer. If the only issue is the bleed-through, priming with oil-based primer will stop the nicotine bleed-through and work fine over the latex underneath. © 2018 Matt G. lw crim on May 14, 2020: 18 months ago i used Zinsser primer on bath wood then painted with good latex paint. Now I need to do it again. This time I am using Kilz original interior primer which is oil based. Will apply 2 coats of primer before painting. Can I use this kilz as a sealer after I have painted? Thanks Can an oil based primer be used over latex paint?Yes, you can use oil based primer over latex paint only if the surface is prepared properly. Clean and sand the latex-painted surface well before applying the oil-based primer. Otherwise, oil based primer will not adhere properly to latex paint and lead to cracking or peeling.
What happens if you put oilSometimes it can be difficult to determine if it? s safe to apply oil paint over latex paint, but we assure you, overtime it will ruin your surface. Due to the flexible qualities of latex paint and the brittle characteristics of aged oil paint, it can eventually split and crack the painted surface.
Can you put oil based primer over waterYou can use an oil-based primer on top of a water-based primer. You can use oil-based primer on water-based paint.
What is the best primer to use over latex paint?Oil-based Primer
These primers work with both oil paints and latex paints, making them very versatile and applicable to a wide variety of surfaces. Wood (painted or unpainted), steel and other metals, and surfaces with existing paint, such as interior and exterior walls are ideal surfaces for oil-based primers.
|
Can you use kilz oil based primer over latex paint
Related Posts
Copyright © 2024 ko.wiewird Inc.
