As a general rule, if you don't sand the wood before painting, the applied paint may peel off after a while. However, this will only happen if the new paint was applied to an already painted or sealed surface. If the paint is applied directly to untreated raw wood, it does not need to be sanded. If the finish of the part you are painting is damaged or splinters in any way, always sand it first.
If you try to paint over that, your new paint job will start to peel off almost as soon as you paint it there. Use a fairly fine sandpaper, you just want to remove the shine and give it a wrench so that the new paint sticks. If you scratch or scratch the surface, you'll need to apply an undercoat and flatten it. Yellowing is a known problem with low-VOC oil paints that came on the market in recent years.
It's not specific to Dulux. If you can expose painted surfaces to sunlight, even opening hallway doors during the day, it will help the yellow to fade. The outer surfaces do not suffer as they are usually exposed to sunlight. Water-based glitter isn't as tough or bright in my opinion, but it doesn't have the problem of yellowing.
Dulux has released paint with a new formula that supposedly does not yellow. In the Dulux Trade range, it is sold in cans with blue lids. I've literally painted countless pieces of furniture and cabinets over the past 20 years and RARELY sanded the finish before painting. USE A CHALK PAINT This is, without a doubt, the most common and well-known way to paint just about anything without sanding.
When you paint furniture and don't sand it before priming and painting it, you run a greater risk of the paint chipping and peeling. I suggest that you sand the glossy surface (until it looks dull and scratched, it doesn't need to be sanded completely) and then ask your local paint store (Sherwin Williams or Benjamin Moore, for example) which primer paint and lacquer would be suitable to combine. Many items you're likely to spray paint won't even be made of wood, but I still recommend using some sandpaper or a sand sponge to scratch the surface before painting it. It is recommended to lightly sand furniture before spray painting, as light sanding will create a better surface for the spray paint to adhere to, resulting in a better and stronger painted surface.
Even just lightly sanding the furniture removes that rough surface that could make the painted surface look bad, which is why I choose to sand lightly between each coat of paint and primer. No, it is not necessary to sand wooden furniture before painting it, however, sanding creates a better surface for the paint to adhere to and creates a durable and durable painted furniture. I didn't like the look, so I sanded %26 and repainted it with Rustoleum 2x Cover latex paint in satin espresso mixed with Behr satin paint in a darker brown. If the part you're painting has rough spots, such as let's say you're painting new wood, then you should sand those stains gently before painting as well.
However, paint can adhere to unsanded surfaces and remain durable, without sanding it increases the risk of paint peeling off the part. The idea of “preparing furniture for painting” is to create a surface where the paint adheres and, at the same time, is durable so that it lasts against normal activity. Sanding is one of these preparation steps.
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