Ronseal is a British wood stain, paint and preservative manufacturer, known for the phrase "Does exactly what it says on the tin".

[3] Known as Roncraft, it became a separate sales division of Izal in 1970 and was bought three years later by the Sterling Drug Company.

In 1989, Sterling was bought by Eastman Kodak until the multinational photographic company sold all of its do it yourself business to the New York-based investment bank Forstmann Little & Co. in 1994.

Forstmann Little & Co. included Ronseal within its Thompson Minwax Holding Corp. business, which it sold in 1997 to Sherwin-Williams.

[4] Sherwin-Williams purchased the Polish woodcare company Altax in February 2009, and integrated it into the Ronseal unit.