Resins For Surface Coatings. Alkyds | & Polyesters

: Over 2 million tonnes of unsaturated polyester resins are consumed annually for applications ranging from high-specification automotive components to waterproofing linings for marine and construction sectors. Resins For Surface Coatings. Alkyds & Polyesters [PDF]

: High oil content (>60%), flexible, and slow-drying; primarily used in architectural paints and wood coatings. Resins for Surface Coatings. Alkyds & Polyesters

Alkyds are the dominant binders in commercial oil-based coatings. They are technically polyesters modified with natural oils or fatty acids, which grants them their signature ease of application. : Over 2 million tonnes of unsaturated polyester

: Alkyds are prized for their versatility and durability. However, they are prone to yellowing in interior settings and may lack long-term gloss retention in exterior environments compared to pure polyesters. 2. Polyester Resins: The "Oil-Free" High-Performers Alkyds are the dominant binders in commercial oil-based

: Typically composed of roughly 60% fatty acids (e.g., soybean, linseed, or tung oil), 20% pentaerythritol, and 20% phthalic anhydride.

: Low oil content (<45%), used in high-performance industrial enamels that require baking or chemical cross-linking.