Assuming you mean 'drywall', the answer is YES. The porosity of the plaster joints is very different from the paper areas, and you must have a primer coat to seal the surface. Otherwise you'll have a blotchy paint job.
If you are using wallpaper direct to the wallboard, then the primer in this instance would be a coat of glue size. [Your name for it may differ, but it is basically just a coat of the wallpaper glue.]
To finish the walls. Without plaster, the finish would be Plasterboard, which isn't smooth, and has gaps. Therefore could not be painted.
'Closing in' is done after you've applied your plaster. Basically going over it all with the trowel to 'Close it in' or 'seal' it.
They are put on the end of power tools to smooth surfaces such as wood and metal. Normally done before painting is done on the object.
Marble dusting a pool, otherwise known as plastering your pool, should be done by a professional, so please call a proffesional to do it for you as you need it to be done right.
You can't without sanding it. -I have done this but it's very tricky and means sanding with finer and finer grades of Wet 'n Dry till 1200, then plastic polish after that.
Depends on the gang. If it's a Plasterer and a Labourer, then I'd say upto 100m. THough it'd be a long hard day
It is not too hard to start floor standing. With the right equipment, it can be easily done. It can save you a ton of money!
the prime ministers job is to get the job done
If you are talking about plaster and are plastering the spa only then ususally the cost is a flat cost to have done estimated $1000-1400
this can be done by the prime factorization method 5x43
It would be a good idea if you were to specify the country that you are talking about, however this has already been categorized as being about Canada so that was done for you. And the answer is, senators in Canada are appointed by the Prime Minister.
you need to go slow while clear coating it.