The Masterpiece markers from Molotow have patented Flowmaster pump-valve tips that use a patented capillary-action technique that ensures a constant ink flow.
The black cocktail Speedflow ink is a nitrogen-based paint that has a visco-plastic coating with a light copper shimmer. It is highly opaque, UV- and weather-resistant, fast drying, abrasion resistant and suitable for both indoor- and outdoor-use.
Coversall cocktail ink with synthetic bitumen has a pitch black, permanent, visco-plastic coating and is alcohol-based, high-covering, UV- and weather-resistant, quick-drying, abrasion resistant and therefore perfect for indoor- and outdoor-use. It is refillable with most inks and paints, but the alcohol-based Coversall and Speedflow refill cocktails will give the best results.