Roberson : Cobalt Siccative : 250ml

Cobalt Siccative Is A Drying Agent For Oil And Alkyd Colours. The Chemical Compound Acts On The Oils Surface Accelerating The Forming Of A Film. Extreme Care Must Be Taken Not To Use Too Much, As A Guide 1-3% By Volume Should Be Dropped Into The Colour Before Working In. Warning: Contains Flammable Chemicals Or Substances That Can Ignite.