Derivan Flocculation Medium can be used to make acrylic paint clean up easy and safer for the environment and is the same Medium they use to clean their waste water. Improper disposal can be harmful and lead to chemicals finding their way into the soil or waterways. Something we all want to avoid. Derivan has created this cleaning medium to make the task of clean up and disposal quick and convenient especially for large quantities of paint such as during workshops or in classroom spaces. Perfect for bringing your paint-wash-up water to almost 100% clean. (We suggest only pouring the clean water out into the garden on non-edible plants).

It is used by adding about three tablespoons of Floc agent to a 9-litre bucket of wastewater. This then needs to be stirred thoroughly for 5-10 minutes, then left for at least 3 hours. What should happen is the particles of pigment, acrylic resin etc, will bind together into a thick sludge and will either sink to the bottom or float, leaving almost clear water which can be poured off (through a cheesecloth or other course fabric). The sludge is then left to dry and disposed of into landfill.

Each colour is different, and therefore their formulas are different - and therefore, their chemical make-up is different - and their wastewater will be different. So the description and ratios above for Flocculation Medium to wastewater may vary considerably (by multiples). Some fine-tuning will be needed each time - adding more Floc agent, stirring for longer, and leaving to settle for longer are all variables that will change from batch to batch.