Westlake Royal Building Products

We do offer mouldings that are specially formulated for heat bending, but not all cellular PVC trim and mouldings apply. For example, Royal S4S Trimboard is not recommended for bending, but SurEdge and Precision Cut trim can be bent into a reasonable radius.

Cellular PVC is a thermoplastic polymer, which means it becomes pliable or bendable when exposed to certain temperatures, returning to a solid state when cool. Because of its nature, some cellular PVC profiles can be reheated and reformed; however, variations in batches, profile geometry, and density or weight of the profile mean some experimentation will be required to perfect this skill.

For best results, don’t bend any cellular PVC trim greater than 6” wide.  Please see the Royal Installation Handbook for detailed instructions regarding bending PVC.

Yes - the closest off the shel match for our P546 White trim is Sherwin Williams off-the-shelf exterior latex Resilience (Satin) 6404-13530 Extra White. This is a very close color match and is readily available.

Please refer to the RTM Installation Handbook for details on Painting PVC.

Yes! For dark colors, with a light reflective value (LRV) of 56 or lower, it is imperative that an approved solar reflective coating is used. These paints are typically referred to as solar reflective, or heat reflective coatings for vinyl. Failure to use the proper coatings specific to dark colors will result in heat distortion and buckling to any Cellular PVC.

There are well known coatings manufacturers that offer solar reflective coatings that are safe to use on vinyl and Cellular PVC trim & mouldings:
• PPG Paints - SidingSafe® Technology
• Sherwin-Williams - VinylSafe® Technology
On dark colors light reflective value (LRV) of 56 or lower, it is imperative that an approved solar reflective coating is used.

Yes, we recommend a non-corrosive metal such as galvanized, stainless or coated screw for exterior applications.

Yes – PVC can be routed using standard woodworking routing equipment and/or with a CNC router. For best results use multiple flute carbide-tipped bits.

See RTM Installation Handbook for detailed instructions on Cutting, Routing and Milling PVC.

PVC cannot be used as a structural product in load-bearing applications. PVC boards must always be supported by wood or other structural materials.

Yes, follow the manufacturer’s recommendations.

Our product is perfect for ground contact application and below grade installation requirements.

Yes. Our mouldings are waterproof and do not promote the growth of mold or mildew.

No, we do not recommend painting the flex.