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Notes from the Lab: Archive

Aging additive mediums.

This is an archived post from June, 2016.

Retarders belong to Tri-Art’s collections of mediums classified as additives. Additives completely evaporate over time from the paint film and have no lasting effect on the final finish of the paints.

These products will naturally age and appear amber in tone. The aging or amber colouration will not affect the performance or alter the colour they are mixed with.