Polyurethane

Used in classic balustrades and to replicate colonial and federal era columns, rails and moldings, these products are completely impervious to rot and decay, and retain their appearance for years. Examples of their use can be seen in Just Decks' photos of classic porch porticos, balustrades, balconies and other "period" work. Common brands such as "Fypon" and "Chemcrest" have seen competition from plastic molding and millwork products such as "Azek". Often these products are used together to create unique architectural designs.