you wait till the acrylic paint is dry then u use turps to get rid of the clouded varnish :)
Bleach
You'll need to use some lacquer thinner and a wire brush to remove any varnish on brick.
If the acrylic painting has been hanging for a long time, try using a cotton swab and some acetone fingernail polish remover. The polish remover should wipe the marker from the paint without lifting the paint. Take your time and use just the tip of the swab and the marker should lift off into the swab.
Yes, you can use acrylic paint on wooden doors. If there is any peeling paint on the door, you can remove it with sandpaper or a scraper. Also be sure to use exterior acrylic paint if you are painting an exterior door.
You cannot. A glue stain, or any stain will show through clear varnish. It is always better to try and remove all stains or marks before varnishing. Almost every glue has a solvent that will remove it.
use a nail varnish that doesn't contain acetone as the acetone dissolves the acrylic!
To remove varnish from any surface, use Acetone. Acetone is also in nail varnish remover.
Sometimes wood needs to be re varnished or restrained. To remove old varnish, you can use either a paint stripper or sand off the old varnish.
An Acrylic Lens Deoxidizer is designed to remove the cloudy oxidation from plastic headlights. It does not require scrubbing, buffing or tools of any type and it works on contact the Number 1 Acrylic Lens Deoxidizer world wide is Pittman ALR.
you have to brush it
Bleach
You'll need to use some lacquer thinner and a wire brush to remove any varnish on brick.
If the acrylic painting has been hanging for a long time, try using a cotton swab and some acetone fingernail polish remover. The polish remover should wipe the marker from the paint without lifting the paint. Take your time and use just the tip of the swab and the marker should lift off into the swab.
You can remove varnish from tiles by making a paste that contains two parts calcium carbonate, one part trisodium phosphate and some water. Using a putty knife, spread the paste over the varnish and allow to sit for 30 minutes. Use a plastic putty knife to remove the paste and varnish, scraping along the tiles as you go to remove as much of the varnish as possible. Rinse the tiles with warm water and pat dry with a clean, dry cloth.
If they are designed for plastic they should not have any abrasives in them, so they should be safe, However if you are trying to remove cloudy oxidation from your thermoplastic /acrylic/ polycarbonate headlight lens they will not work.
scrub, scrub, scrub...
methylated spirits