You can indeed colour Builder’s Bog with dry oxides, such as used in concrete etc. Paint tinters may sometimes work, but often will interfere with the chemical cure mechanism, so I never use them.Oil based paint itself can produce paler shades, but any more than about 2 to 5% addition will spoil the end cure too. So called universal tinters for both oil and water based paints contain glycols and will not work well, often being immiscible with Builder’s Bog

Regards,
Stuart Jordan
Managing Director
Chemical Specialties Ltd.
12.9.2016