Teak Plus is a quality controlled, biodegradable chemical product formulated for use in the marine industry. It restores the bright, natural luster to teak wood surface and trim.Teak Plus is applied after the teak wood has been cleansed with its companion product, Teak Minus. Use a soft brush or "doodle bug" pad to apply. Apply Teak Plus, lightly scrubbing prior to rinsing.