Performance Studies of Kemwerke's Bio-based Resin in 2K Polyurethane Paint
Polyurethane systems have long been well established as a durable and premium coating choice for metal surfaces. Conventional 2-component polyurethane (2KPU) systems typically use acrylic or polyester polyols derived from petroleum-based oils.
To show comparative performances of Kemwerke’s coconut oil derived Bio-based polyol versus traditional acrylic/polyester polyol-based coatings, tests were conducted particularly in the automotive refinish, offshore and industrial applications
Project Case #1
On automotive refinishing applications Kemwerke BioRes 407XL showed high gloss and non-yellowing property on paint medium.
Specifically, the Auto-Refinish Kemwerke BioRes 470XL which was used as the binder in this 2K- Polyurethane primer exhibited good adhesion, good sandability, and smooth finish to touch as inspected by a coating Inspector
Project Case #2
On offshore pipeline & industrial applications, Kemwerke 407XL exhibited superior saltwater resistance and weatherability. Kemwerke BioRes 407XL performed well in 2KPU coatings for a number of metal surface applications that are subject to highly corrosive environments. Third-party tests have been conducted to compare its performance against commercially-available acrylic/polyester polyol-based 2KPU, which conventionally uses petroleum-based resins.
As part of the company’s R & D efforts to improve its product line-ups, performance tests are continuously conducted

