If you prefer to remove the paint entirely as opposed to painting over it use a paint scraper to peel off the remaining unwanted paint.
Best way to get paint off acrylic sheeting.
Scrape off excess paint and starting at the outer edge of the stain apply acrylic paint and varnish remover.
Rinse the surface off with plain water afterwards then dry it with a clean cloth.
Acrylic medium makes a great glue decoupage for adhering papers for collage.
Gently scrape away the paint as it softens.
Cleaning the acrylic plexiglas most likely will be necessary though because smudges probably will occur while removing the film.
When applying cleaner use a non abrasive lint free or microfiber cloth that won t scratch the surface.
Acrylic sheeting can be damaged by harsh solvents and cleaners.
Strip the paint if you want to remove it entirely.
For tough grease oil or tar residue use commercial grade hexane or kerosene.
Place the paint scraper s blade at the bottom of the unwanted paint apply pressure to the blade and slide it under the unwanted paint peeling the paint off.
Use an after wash to remove any paint stripper residue.
Some acrylic paints darken as they dry.
Make sure that you do not touch this side of the acrylic again with your bare hands.
It may take two or three coats until there is a solid coat of primer paint.
Use a commercial plastic cleaner or mild soap and water to remove dirt and debris.
The problem with more than one coat is allowing paint to dry without immediately removing the tape once you remove tape off dried spray paint it is likely to peel the paint along with the tape.
Wear cotton gloves when handling tracing and painting the acrylic sheet.
If the paint has dried up this concern becomes even more serious.
Even with the use of paint remover the task is not easy and requires you to be very careful.
Alternatively you can paint on the primer with a brush.
Hold the spray can 12 inches away from the plastic sheeting and sweep the can back and forth across the surface spraying evenly along the surface until there is an even coat.
Using a specific product called novus 1 developed for cleaning and polishing will restore luster to the plexiglas surface.
Repeat using the remover sparingly until.
Clean the side of the acrylic sheet that s facing up with rubbing alcohol.
You can find it alongside the paint strippers in home improvement stores.
The alcohol removes fingerprints and readies the acrylic for the paint.
You can clean acrylic paint off of your hands with soap and water.
It is a chemical compound which breaks down the paint so that it can be easily scraped away.
So choose a high performing acrylic enamel spray paint or simply look for a paint designed to bond with plastic.