Water based primer is usually used for walls and ceilings where there is new work and preparation is required, and oil based primer is primarily used for doors, windows, metal or woodwork.
That answer is also dependent on what surface you are working on. I would recommend an oil based primer on woodwork with a higher tannin percentage. Specifically exterior millwork like Cedar or Redwood. A water based primer is more appropriate for composites as opposed to real wood.
Painting is a popular and rewarding way to spruce up a room or outdoor space, but the fumes from oil-based paint primer can be dangerous. Some of the paint fumes' side effects include headaches, dizziness, nausea, and even more severe health problems.
As mentioned above a short-pile 'flock' type roller is the best for applying oil-based paints (if the satinwood is water-based or 'quick-dry' it will still be fine). You should then 'lay-off' the paint to achieve a flat finish without the stipple texture from the roller.
Ditto on the oil based primer over oil based paint. And yes, you'll still need to sand before priming, especially on oil base, until the surface is evenly dull.
Under optimal conditions, these BEHR® primers listed below are ready for topcoat after one hour. Once completely dry, apply one to two coats of the desired BEHR water-based topcoat. Allow two hours of dry time in between coats.
Sanding the primer before painting is not just a recommendation; it's a critical step in the preparation process for painting a car. Skipping this step can lead to a less than satisfactory finish and potentially compromise the paint's durability and appearance over time.
Natural bristle is the best choice for oil-based paints, varnishes, shellac, alkyd enamels, oil stains and oil-based polyurethanes. The highest quality bristles come from mainland China. Experienced, traditional painters will say there's nothing like the finish that a China bristle can provide for oil-based coatings.
Before applying latex paint over oil-based primer, make sure to sand and clean the surface thoroughly. This will create a suitable surface for the latex paint to adhere to. Additionally, it's recommended to use a latex primer in between the oil-based primer and the latex paint for improved adhesion and durability.
Many painters “break in” a roller cover by priming it with water or thinner. In our lab we never prewet a cover before painting. If you choose to, you must spin it out with five or six strong pumps so it is only lightly damp. Then take even more moisture out by blotting the cover with a paper towel.
While primer is an important step, it's not always necessary. You don't need to use a primer if your paint project has all of these conditions: You're painting drywall surfaces that are smooth, clean, and don't need repair. Surfaces were previously painted with latex in a flat or eggshell finish.
Oil-based primers are ideal for painting wood and metal surfaces, as they seal porous surfaces and provide excellent adhesion.
Water based primers - These primers tend to be sometimes easier to use than shellac and oil-based primers, they also have less odours and are environmentally friendly.
The glossy surface of oil-based paints makes it so difficult for any other paint to bond. That's why, if you apply water-based paint straight to oil-based, it will flake and crack as the water-based paint pulls away. So, to get oil-based ready to paint over, you need to take away a lot of that gloss.
After priming, allow to dry 4 hours, test a small area for bleeding by applying the topcoat before painting the entire project. If the stain bleeds through, apply a second coat of primer and allow to dry overnight and retest before topcoating. Use Multi-Purpose Latex Primer over solvent sensitive stains.
Oil-Based Primers: Oil-based primers are highly durable and provide excellent adhesion to the cabinet surface. Additionally, they are great for sealing off any moisture or stains on the cabinet surface, which is crucial for preventing mould or mildew growth.
Latex paints will not stick to oil based paints. The exception is that an oil based primer may accept any kind of top coat paint. For that reason, an oil based primer is recommended to be applied over any oil based top coat, then a water based paint may be used as a top coat.
They are Sherwin Williams Extreme Bond Primer, and Behr Bonding Primer. These top two primers were the very best at bonding in both the 24 hour test and the 38 day test.
Dries to the touch in 30 minutes. Can be recoated or topcoated in one hour with latex or oil-based paint.
If you used oil-based paint, you'll be cleaning your brushes with mineral spirits or turpentine.
Natural fiber roller covers made with mohair or a blend of polyester and lamb's wool are usually recommended for oil-based paints, varnishes and stains. Synthetic fiber roller covers, on the other hand, are most often recommended for applying latex paints. Check your state and local codes before starting any project.
Purdy® Clearcut® Elite™ paintbrushes offer the ultimate performance and cut-in ability with a stiffer bristle formulation for thicker coatings. Great for Low VOC and latex paints and primers, the ultra-stiff nylon- and polyester-blend bristles that provide clean and straight lines for years.
Technically, yes, you can do that. Some circumstances don't require sanding the existing paint and primer before repainting. If you choose this route, the car's surface might show minimal damage like puncture holes, body scratches, dents, and cracks.
Oil-based primers take 8 hours to dry, and you can lightly sand over the primer to make the surface as smooth as possible.
Why Wet Sand? The purpose of wet sanding is to get an even surface finish after dry sanding. Dry sanding shapes the surface, while wet sanding removes the large scratches left by dry sanding.