Because of the exceptional adhesion of this product, sanding may not be necessary for most clean, paintable surfaces. Sanding or dulling with an abrasive cleaner is recommended on glossy, extremely hard surfaces for maximum adhesion. Stains from heavy water, smoke, ink, pencil, grease, etc.
Unfortunately you will still likely need to sand at least some, as you will need to promote adhesion, typically this will allow most primers to stick to your surface. You can use a bonding primer directly over the top of it with no sanding, but you may need multiple coats of primer.
Sanding after applying primer will help you keep the surface as smooth and flat as possible, eliminating any leftover bumps, dents, brush marks, etc. And that sometimes happens if you didn't' check it well before priming. Consequently, it'll help you to achieve a bright final coat and that's not dull.
DRY & RECOAT
Allow more time at cooler temperatures. Dries to the touch in 30 minutes and dries to handle in 1 hour. Apply a second coat or topcoat at anytime. For two part epoxies, wait two hours before topcoating.
Here are some examples of how a primer should be used on different surfaces, depending on condition: One Coat—New drywall, raw wood, subtle color changes. Two Coats—Damaged drywall, stained walls, rusty metal. Three Coats or More—Wood paneling, bold color changes.
Dries to the touch in 30 minutes. May be lightly sanded and/or topcoated after 1 hour. For two part epoxies, wait 6 hours before topcoating. Allow more time to dry at cooler temperature and higher humidity.
On hard, slick, glossy, or otherwise hard to paint surfaces, after preparing the surface, apply a test area of this primer, allow to dry properly and test for adhesion. Because of the exceptional adhesion of this product, sanding may not be necessary for most clean, paintable surfaces.
(Note: Bonding primers are not recommended for use over peeling paint).
Stix creates an extremely hard finish that can be topcoated with many products. After thoroughly cleaning and abrading the doors and drawer fronts, we apply a minimum of two coats of Stix, hand sanding between each coat, followed by a minimum of two topcoats of pigmented (tinted) catalyzed lacquer.
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. The body will look smooth and mostly intact.
When sanding, do a first pass with 100-150 grit sandpaper then finish with a second pass of 180-220 grit sandpaper. Remember, the higher the “grit" number, the smoother the finish.
After the primer has dried for 20 or 30 minutes, the tape can be removed. Although it's possible to go right ahead and sand the car (dry) and follow with the paint, it's a good idea to allow the primer to cure for several days, or even a couple of weeks if possible.
Primer should be sanded before you apply the paint. A primer is used to help cover up the existing color of your wall. It is applied to create a blank, neutral surface before you coat your wall with your chosen paint color.
A bonding primer or an oil-based primer is recommended for surfaces with peeling paint issues. Follow the manufacturer's instructions for the specific primer you're using. If there are any visible cracks, holes, or imperfections on the surface, use a suitable filler or spackling compound to repair them.
KILZ Concrete & Masonry Bonding Primer is specially formulated to optimize the adhesion of masonry coatings. With proper application, this product provides a sound foundation for coatings with excellent resistance to water, alkali and efflorescence.
Not all bonding primers are self-leveling. If you've selected one that is not, sanding is a necessity to create a smooth surface for your paint or topcoat.
It is specially formulated to bond to a variety of challenging substrates and reduces the need for sanding dense and glossy surfaces – making it an ideal primer choice for painting tile, glass, Kynar®, and vinyl.
We recommend using Zinsser Bulls Eye 1-2-3 for glossy surfaces like varnished wood. Zinsser Bulls Eye is a 'bond coat' primer that's great for hard-to-stick surfaces as it offers excellent adhesion without sanding.
Dry and recoat times are based on 70°F (21°C) and 50% relative humidity. Allow more time at cooler temperatures. Dries to the touch in 30 minutes and dries to handle in 1 hour. Apply a second coat or topcoat at anytime.
Tip: Sherwin-Williams encourages you to use Extreme Bond Primer when painting kitchen cabinets to help you achieve the look you want. This high-quality primer promotes a superior finish by ensuring the topcoat spreads evenly and sticks as intended.
Extreme Bond Primer is a high quality, waterborne, acrylic bonding primer that promotes adhesion on a wide range of hard to paint surfaces with only a one coat application. Designed for coating hard, slick, glossy non-porous surfaces with minimal surface preparation (not designed for floors).
Can You Wait Too Long to Paint After Priming? Generally speaking, you should paint within a couple of weeks after priming. Some primers can be left for up to 30 days, but that's pushing it.
600 to 800 Grit – This sandpaper grit range is perfect for sanding surface imperfections in the primer, prior to paint application. It is recommended to start at the low grit end and work your way up to 800 grit. 1000 to 1200 Grit – When you need to remove base coat imperfections, this grit range will do the job.