To remove stains from acrylic paint off of craft/artwork, you can try the following methods:
Water and mild soap: Start by gently wiping the stain with a damp cloth or sponge soaked in warm water. Add a small amount of mild dish soap to the cloth and continue to dab at the stain, being careful not to scrub too vigorously as it could damage the artwork. Rinse the cloth frequently and repeat until the stain is lifted.
Isopropyl alcohol: Moisten a clean cloth or cotton ball with isopropyl alcohol (rubbing alcohol) and dab at the stain. Blot the area gently, changing to clean parts of the cloth as needed. Be cautious and test a small, inconspicuous area first to ensure that the alcohol doesn't cause any adverse effects on the artwork.
Acetone or nail polish remover: Acetone or nail polish remover can be effective in removing dried acrylic paint stains. However, they can also have strong solvents that may cause damage to certain surfaces or artwork. It's crucial to test a small, hidden area first and proceed with caution. Apply a small amount of acetone or nail polish remover to a cloth or cotton ball and gently dab at the stain. Blot and repeat as needed, ensuring you work in a well-ventilated area.
Commercial paint removers: There are specific commercial paint removers available that are designed to remove dried acrylic paint stains. Follow the instructions on the product carefully, and test it on a small, inconspicuous area before applying it to the stained artwork. Be mindful of the surface and materials you are working with to prevent any damage.
Remember to handle any cleaning agents with care, work gently, and test on a small, hidden area before applying them to the stain. If the stain persists or if you are unsure about the appropriate method to use, it may be best to consult a professional art restorer or conservator for guidance.