Tannin Warning: Kwila’s superior strength and stability are attributable to its tannin-rich properties, resulting in low shrinkage and minimal surface and end splitting. Tannin is a naturally occurring substance in timber which will leach the first few times it is exposed to moisture, staining timber, paved areas and other nearby surfaces. Objects left on the timber surface will also draw tannin out, creating surface marks. A thorough and regular hose down during the first few days will assist in flushing excess tannin away and minimising subsequent staining. To prolong this product’s life and maintain its premium look apply a timber oil containing UV stabiliser within 2 weeks of installation. The surface should be washed and cleaned using a stiff bristle brush then allowed to dry prior to applying a minimum of 2 coats of timber oil.