The Trade 4+ does not require fluid, it uses an impregnated Vapour Mate Pad. These pads work like the Trade 20’s fluid whereby they produce the vapour that keeps the brushes soft and pliable for a prelonged period of time.
What is brush mate top up fluid?
Brush Mate fluid is formulated for use with the BrushMate Trade 20 Paint Brush Storage System. The clear liquid evaporates very slowly, producing a powerful heavier-than-air solvent vapour that fills the container.
Why are Purdy brushes so expensive?
What is a vapour box?
5 products. Tired of buying brushes for every single job? With a specialized vapour box you can keep your brushes in good shape and ready to use whenever you need them. A special liquid on a pad within a tightly closed container will make sure that your brushes will not dry out and harden over time.