Interlux Sikkens Cetol Marine Light Wood Finish Interlux Sikkens Cetol Marine Light with Next Wave UV-absorbing technology is a durable translucent protective wood finish for use above the waterline on interior and exterior woods. Next Wave technology is the next generation of Cetol Marine from Sikkens with a unique UV-absorbing package, which is specialty resins and advanced UV absorbers that provide greater protection, durability and longevity. Cetol Marine Light provides a flexible breathable