Primer is needed when there is no existing paint is present. If new drywall
is present then a drywall primer is applied, a paint primer then paint.
Read the instructions on what ever paint you buy. Most new paints say that you don't need to prime over the old paint and they cover better then they use to.
So you follow the instructions on the new paint, it will either recommend priming the walls or it won't. But if you don't use a primer over old paint, you should buy a paint cleaner
that preps the wall for the new paint. This will give the old paint a good surface so the new paint adheres well to it and down the road you don't get bubbling or peeling.
If the ceiling is newly installed, has recently been repaired, is water stained, is a "textured" ceiling or a colour that will require several coats to cover, the answer is YES. In the case of water stain be sure to use a shellac based primer such as Kilz (Kilz2 is not as good).
If you are painting over a flat, white (or pale coloured), old surface that just needs a "brightening up" then NO.
Yes, otherwise you will seal in moisture causing potential rot and mildew.
I believe that you prime than paint than seal. It depends on the paint you are using and what you are painting A lot of the exterior paints used today don't require any undercoat. However if you are painting over a previously painted surface you must keep preparation in mind.
Open celled foam must be sealed prior to painting. The seal is a simple mixture of white glue thinned with water and brushed on.
On the ceiling of the Oval Office is a painted Presidential Seal. Over the fireplace hangs a porthole portrait of the first US President George Washington by Rembrandt Peale painted in 1776.
No, you need to remove the tacky coating before anything will stick properly.
Yes, otherwise you will seal in moisture causing potential rot and mildew.
Yes
I believe that you prime than paint than seal. It depends on the paint you are using and what you are painting A lot of the exterior paints used today don't require any undercoat. However if you are painting over a previously painted surface you must keep preparation in mind.
Well, on the ceiling there is the Presidential seal.
No. You seal the top part of travertine AFTER it's installed.
You need to be sure of what it is before you decide upon removal tactics. Is it a bee hive that is actually in the ceiling or wall, or is it a wasp or hornet nest that is visible and stuck to the ceiling or wall? If it is a bee hive there will be honeycomb involved and that will all need to be removed from the ceiling. Call a professional to smoke out the bees, open up the ceiling, remove the hive, and then seal the hole. If it is just the papery nest of a wasp or a hornet or the mud nest of a mud dauber, those are easy, get some wasp and hornet freeze. soak the nest and let it soak about 24 hours, then knock the nest down. Make sure before you knock it down you don't notice any activity.
Open celled foam must be sealed prior to painting. The seal is a simple mixture of white glue thinned with water and brushed on.
On the ceiling of the Oval Office is a painted Presidential Seal. Over the fireplace hangs a porthole portrait of the first US President George Washington by Rembrandt Peale painted in 1776.
We used paraffin wax to seal the wood before painting it.
Calligraphy, painting, and seal carving
There was an Icecutter named the "Rush" used to keep tabs on illegal seal hunting back in the day. Members of these seal hunters would say "We need to get there before the Rush" The ship was the US Revenue Cutter (USRC) Richard Rush, thereby "We need to get there before the Rush," is quite correct.
Yes, even weatherproof paint will need a top coat. Creating a top coat makes a great seal to keep the paint in, which prevents it from being damaged.