Specialty coatings for painting purposes are designed to provide specific benefits, such as improved durability, protection, and aesthetic enhancement. Here are some common examples of specialty coatings for painting purposes:

1. Primers: Primers are used to improve adhesion and provide a smooth surface for the paint. Some primers are specifically designed for waterproofing or to block out stains, tannins, or odors.
2. Epoxy coatings: Epoxy coatings are a two-part system that provides a hard, durable finish that is resistant to chemicals and abrasion. They are commonly used in high-traffic areas or in applications where a waterproof finish is required.
3. Urethane coatings: Urethane coatings are a type of polymer that provide a hard, durable finish that is resistant to chemicals and UV light. They are often used in industrial or commercial applications where a high-performance coating is required.
4. Alkyd coatings: Alkyd coatings are a type of oil-based paint that provides a hard, durable finish that is resistant to chemicals and abrasion. They are often used in industrial or commercial applications where a high-performance coating is required.
5. Chalk paint: Chalk paint is a type of water-based paint that dries to a matte, velvety finish. It is often used in furniture and decorative painting applications and can be easily sanded, distressed, or waxed to create a unique, shabby-chic look.

When choosing a specialty coating for painting purposes, it’s important to consider the specific requirements of the application and to follow the manufacturer’s instructions for application. Additionally, it’s a good idea to test the coating on a small, inconspicuous area to ensure you are happy with the finish before applying it to the entire surface.