Do I need to scrap wall before painting?

Related posts:

1. Why is Squid Game so violent? Why is Squid Game so violent? Violence in the show looks very lifelike, but it is figurative and allegorical. It mirrors people who run into a dead end after failing to survive the competitive society. If there are teenagers who watched this show, we can discuss current issues of our...
2. Will a diamond melt in lava? Will a diamond melt in lava? To put it simply, a diamond cannot melt in lava, because the melting point of a diamond is around 4500 °C (at a pressure of 100 kilobars) and lava can only be as hot as about 1200 °C....
3. Does Beyond Good and Evil 2 exist? Does Beyond Good and Evil 2 exist? Beyond Good and Evil 2 is an upcoming......
4. Does a second coat of paint use less paint? Does a second coat of paint use less paint? It took us half the time to do the second coat. The decorator thinks a tin will be 80% empty after a first coat. Whereas a tin would only be 10% empty if a new one is opened for a second...
5. Valkyrie Profile: Lenneth Comes To PlayStation Consoles In September In conjunction with revealing the release dates for Valkyrie Elysium, Square Enix also announced it’s......
6. How do you paint a perfect straight line? How do you paint a perfect straight line? 11 Tips to Paint Perfectly Straight Lines Use an Angled Brush. If you are going to try to paint a straight line with just a brush, be sure that it is an angled brush. Don't Put Too Much Paint on the Brush....