You do not need to waterproof it - that is why it's purple
You prime it with drywall primer.
Cutting drywall before you snap it .
When I've used Advantage on my dog, the veterinarian has suggested washing the dog two days before applying even though the preparation is waterproof.
A statue can be waterproofed by using Linseed oil. Before applying the oil be sure to sand the statue first with a fine grit sandpaper.
No, you need to dry the surface (chest) before applying the AED pads, as they can slip off or become ineffective.
The poly shield goes directly onto the frame before drywall.
yes If you dont prime new drywall, then there is a chance that the orange peel texture maynot cover all unpainted surfaces and you may have to repaint due to the obsorbtion of the paint in the drywall. It also helps seal the surface of the new drywall and makes for a better and more uniform finish.
You need a level surface so you would want the joints to be done & dry. HOWEVER you really shouldn't put tile over drywall. Cement board, HardiBacker or green board, but never drywall.
# I have been in the business since 1959, and the first time we used it was in 1976 in Anchorage AK. The trouble with it is it is water resistant, not waterproof. That means that after a period of time usually a few years, the water penetrates, and if you didn't use felt paper before installing drywall it was a waste of time, plus you cannot use it for ceiling use.
Usually, there is drywall under the wallpaper. It is not difficult to remove the wallpaper (by steaming, or another method) to get to the basic drywall. Then, you can texture it and then paint it.
Never heard of that before. The drywall may be very dusty, or the primer iwas not mixed totally.
Be certain that the surface dew / moisture has completely evaporated before applying.