After using plaster of Paris to create a molded sculpture or mixed media piece, you need to use a specific method to paint it. The absorbent quality of the plaster of Paris can cause paint to soak right in, so you need to prepare the plaster and apply the paint in a certain way.
Prepare and Prime
Once you finish your plaster of Paris sculpture or mixed media project, allow it to cure, harden and dry completely before you begin to paint it. Attempting to paint wet or soft plaster of Paris could result in a ruined art project and a giant mess. Prime the plaster of Paris by applying acrylic gesso to the exterior using a paintbrush. Priming with gesso seals the plaster so it no longer absorbs moisture. Allow the gesso to dry completely, and apply a second coat if necessary.
Apply the Paint
Decorate your plaster of Paris sculpture using acrylic paint. Acrylic dries very quickly and you can apply it in layers, making it the perfect paint for plaster of Paris. Use paintbrushes, cotton swabs, sponges and even toothpicks to apply the acrylic paint however you want, to complete your plaster sculpture. Allow the paint to dry for at least 12 hours before displaying the project.
Dying Your Plaster of Paris
If you want to dye a batch plaster of Paris before you pour it into your mold or apply it to a mixed media project, start by mixing together 1 part water with 2 parts plaster of Paris in a large bucket. Stir the mixture continuously while adding in acrylic or tempera paint -- use as much paint as you want to achieve the color you need for your project. Once it's thoroughly combined, pour or apply the plaster of Paris as usual.
Tips and Warning
Lay down a sheet of painter's plastic or a disposable tablecloth before painting the plaster of Paris sculpture, to avoid getting paint all over your floor or table. Always keep curing plaster out of the reach of children because as it cures it will become very hot.
- Photo Credit DenKuvaiev/iStock/Getty Images
How to Finish Plaster Art Crafts
Plaster casting is a great way to reproduce a high amount of detail in relief, but plaster itself is a fragile material...
How to Make Plaster of Paris for Your Art Projects
Used by arts and craft fans of all ages, plaster of Paris is a useful sculpting, molding and papier mache material. Making...
How to Paint a Plaster Statue
Plaster statues are initially shaped with wire and then thick coats of plaster are applied over the wire frame to form the...
How to Mix Plaster & Paint for Undercoating
Plaster-type products in your undercoat paint give your walls texture and hide flaws. All-purpose joint compound is the best product to use...
How to Paint Plaster Figurines
Plaster figurines come in a variety of shapes and sizes, however, they all have one thing in common, they aren't conducive to...
How to Spray Plaster
There are many different kinds of wall textures available to homeowners. One of the easiest ways to apply plaster to walls is...
Types of Plaster Finishes
Plaster finishes on your walls or ceilings can add a rich dimension to your home. There are many types of plaster available...
Secret Techniques for Acrylic Abstract Paintings
Abstract painting is an art style that is open, expressive and without boundaries. The meaning of such works is solely dependent on...
Plaster of Paris Painting Ideas
Painting and coloring plaster of Paris is a simple process that allows for lots of creative ideas and easy diy projects. Plaster...
Tips on Painting Plaster Molds
Because plaster is a porous material, special care must be taken in painting it. Plaster molds are available for children's crafts, adult's...