TeakWonder BRIGHTENER, cfz. lt. 4 is a lightening that serves to eliminate any shading from teak that may persist even after the application of the TeakWonder CLEANER. The application of the TeakWonder BRIGHTENER is not always necessary, but its use on "lived" surfaces, which have remained a bit dark and shaded despite the cleaning treatment, has an effect that may even seem miraculous: teak immediately reacquires the natural shade of the one just sanded, without removing precious millimeters of essence. The application should be done on the blanket still wet by rinsing the TeakWonder CLEANER, sprinkling with a modest amount of TeakWonder BRIGHTENER, but taking care to distribute it evenly to avoid a mottled result: the clearing of the teak is immediate, on contact. As soon as the application is finished, rinse the deck again with plenty of fresh water. The product is neither caustic nor aggressive and does not damage the rubber of the coments, paints or hardware. Once dry, the surface is ready for the application of the protective TeakWonder DRESSING & SEALER. Clean any leaks on non-teak surfaces. The yield of the product is 8-10 m2 / l, depending on the condition of the wood.