Chemical darkener for producing an antique black patina on silver and gold. Apply to clean metal surface with a bristle brush or immerse entire object. Rinse well with water and dry. To achieve desired finish, buff with rouge. Not recommended for use on thinly plated silver. When using on gold, preheat metal before applying solution. Product does not expire, however; they can deteriorate over time. Always store product at room temperature and in tightly, closed original container. Do not mix used product with fresh. It is always advisable to test silver blackener in a small inconspicuous area to make sure that it does not adversely effect or damage the surface being treated. 

Also available in a 1 pint bottle (210-1432).