CertainTeed Corp.’s expanded line of decorative and solar post caps feature a metallic finish with a polyvinyl chloride base that offer the appearance of metal without the unwanted side effect of corrosion. The new metallic finishes include Antique Brown, Antique Copper, Antique Gray, Antique Gold and Patina. The post caps install easily to fence and railing posts and coordinate with 4-in. by 4-in. and 5-in. by 5-in. posts.