As mentioned, the resin surface is smooth, which makes it challenging to create an opaque effect on a single stroke of the brush. However, this does help to create semi-transparent effects.
The best paint to use on the resin is acrylic paint. First, make sure to prime the surface. The paint for resin will adhere to the surface, you can also spray a finish to make your project last longer.
If you find any holes, you will need to fill them with epoxy putty. Use spray primer on the resin. Using 400-grit sandpaper smooth the surface lightly and then spray on another layer of primer.
Simply use the acrylic paint and apply it to the resin with a paintbrush. Several layers of paint are required. Seal your resin piece with a varnish spray.
You cannot rush when it comes to painting resin, it requires patience if you want your project to come out the way you want it to. Begin with the main color you will use and paint your first layer.
When you are painting resin, you will need to make sure the paint is dry before adding another layer of resin. Wait about 20 minutes, but to make sure it is dry, lightly touch the paint to see if it is dry.
Do you wish to paint resin models? Resin models can be quite detailed in appearance and require a bit of planning before going ahead and painting them.