Why do you need to sand before painting?

Answer 1

When you sand a spot on a wall you remove the paint that area, causing the surface to absorb the your top coat at a different rate than the rest of the wall. To reduce or eliminate this problem always prime any area after you sand in order to seal the spot.

Answer 2

Yes. Although the paint may appear to look good without sanding it will not adhere properly. By scatching the surface with sanding you make give the surface a better chance of holding the paint.

Answer 3

There are very few paints that should be sanded after painting.

Most good quality paints will not have any stickiness, although latex takes somewhat longer to fully harden than some other materials.

Urethane and polyurethane and certain varnishes may retain some tackiness after coating. Light sanding with steel wool or sandpaper (220 or 320 grit) can remove some of the tackiness. It will also remove the gloss.

Answer 4

to make it more smooth. you cant paint on bumby wood and you might need to sand the wood if you are going to stain the wood to make it look more neater

Answer 5

Because if you sand afterward, you'll sand all the varnish off, and if you don't sand at all, then you've got a rough piece of wood with chunks sticking out all over it.

Answer 6

yes?

Answer 7

Using a pressure washer to remove paint is definitely beats the old garden hose, scrub brush and TSP cleaning method, a task so slow that many people just skip it. Connect the pressure washer to the outdoor faucet through an ordinary garden hose, attach a nozzle (see “Selecting the Best Nozzle,” below) and start the engine. Wear goggles to keep paint chips and dirt out of your eyes, and clothing that can get soaked. You WILL get wet. Spread old sheets or painter’s cloths on the ground and over shrubbery to catch paint chips.

Pressure washers look like the ultimate squirt gun, but they aren’t toys. Don’t point them at anyone or try to rinse your hands or feet. They can tear your skin right off.

Finally, make sure you get a Telescopic Spray Wand from bestcargurus  to help reach high areas. A Telescopic Spray Wand extends the range of your pressure washer by up to 18 feet. Allowing you to reach those spots that you couldn’t reach before. Reach your sidings, windows, gutters and more! Clean areas you could never reach before!