Resene Kwila Timber Stain is designed for direct application to new and weathered timber decks and furniture to enhance and restore the timber colour and provide protection against water, fungi, and U.V. light. As a penetrating material, Resene Kwila Timber Stain will regenerate wood fibres exposed by U.V. and weather attack and re-build them into a wood-like material. Exterior. Made in New Zealand.