WOCA Antique Wood Lye is used for lye priming of unfinished or newly sanded wooden floors or woodwork. WOCA Antique Lye is developed to provide an ammonia-smoked aspect to oak wood. This product is user-friendly but corrosive and should be handled with caution during application. Since the product reacts with the tannic acid in the oak, the colour after application may vary depending on the concentration of tannin in the wood. However, it creates a very unique colour and Vintage appearance.