yes....
Protect your floors with carpenters paper, and paint the walls first. Then, once dry, sand the floors and stain them. If you stain them first, then paint the walls, you risk damaging the floors while painting the walls, and may have to re-sand and stain them again. However, if you are a contractor, really it has to do with the availability of your subs.
Walls are walls, wherever they are. - This problem depends on what the stain is and you haven't said. Possibly easiest to simply repaint the wall - first with a 'stain blocker' such as Zinnser Bull's Eye or Kilz Stain Blocker Primer. -These products work well and ANY paint can be applied over them. -(if the wall is papered, then you should remove paper first.)
Paint stays on the surface and stain soaks into the the surface.
Yes, you can use stain in a paint sprayer for your project.
Unfortunately, because Old English is an oil based product with dark stain in it, you will not be able to remove it from the paneling. However, if you are wanting to paint the paneling, the best thing to do would be to apply a 'stain killer' to the paneling first, such as Kilz, available at your local hardware or paint store. This also works well to block any 'stain' that is on your walls before painting, such as lipstick, ink, pencil, etc. and prevent the stain from bleeding through the new paint.
If you paint over the "weathered" paint, it will chip and cause the stain to come off. Also, the stain needs a clean sanded surface in order for the wood to absorb it. Otherwise, there is no reason to use stain.
Yes, in fact it is even more important to mix stain, than paint as the pigment tends to settle out easier with stain.
You will need to paint the stain with a pickling gel. It is very rough, but it will get the stain off.
The stain keeps bleeding through the paint on the wall because the paint is not able to completely cover or seal the stain, allowing it to show through. This could be due to the type of stain, the type of paint used, or insufficient preparation of the wall before painting.
Yes, weed smoke can stain walls over time due to the residue it leaves behind.
There really isn't a way to remove a paint thinner stain from wood furniture. You must repaint or re-stain the furniture.
no