AZEK exteriors products stand out in quality, durability and beauty AZEK Trim and Moulding products use engineered polymer to resist the tests of time and weather. Choose from our inspired collection to add elegant details in a variety of exterior applications. All AZEK Trim and Moulding products have consistent structural density in their polymers, allowing for easy milling and continuously smooth surfaces. The precise, sealed edges on all four sides of every board provide a uniform aesthetic throughout. Manufactured in a crisp semimatte white, AZEK Trim and Moulding adds beauty to any home or project. Protected by UV inhibitors, each board resists fading or yellowing. They’re also easy to clean thanks to the sealed edges on all four sides. Paint in vinyl-safe paint for a personal touch.