About Kommerlin Boards

The KOMA® Celuka Process
In the KOMA Celuka process, special extrusion tooling allows for the cooling of the outer surface of the material while creating an intended cavity inside the profile. This cavity allows inward expansion of the cellular material, resulting in a trimboard with a hard, smooth outer surface and a strong cellular core. This process results in the hardest, most durable surface of any PVC building product available.

All KOMA cellular PVC trim products come shrink-wrapped in tight, thick, 2mm specialty polymer blend film that resists puncturing, tearing and zippering and is UV-stabilized for extended storage.

You’ll notice an immediate difference upon delivery with no mars, dents or scratches on the product. Builders also love the KOMA difference as they nail, glue, drill, rout, and cut our PVC trim boards using regular tools.

While KOMA exterior PVC trim products are UV-resistant and do not require paint for protection, best practices would include painting to help clean-up installation marks and improve mildew and dirt resistance. The special proprietary sanded surface of KOMA Trim provides excellent adhesion for high quality 100