In contrast with inorganic, organic fillers can contain various functional groups allowing them bonded with an organic polymer that leads to strength rising of the plastics. Moreover, organic fillers have low density, hardness and abrasibility and increased stability to settling in liquid systems, such as paints, varnishes, coatings, etc. Besides, organic fillers made from natural polymers are biodegradable. Nano-powders show excellent extender properties for emulsion paints and coatings contained mineral pigments. Introduction a low amount of the nano-extenders into SAR-based paint compositions permits replacing a significant amount of TiO2-pigment without changing in paint opacity value. However, due to lower specific weight and better compatibility with organic polymer binder nano-cellulose is more effective extender than nano-clay. So, the organic nano-filler imparts to plastics some peculiar properties, such as light-weight, increased strength, reduced hot-conductivity, selective water permeation, barrier against oxygen transmission and raised biodegradability. Moreover, this nano-filler improves properties of polymer based emulsion paints and coatings. Wide application of the organic nano-fillers can create new nano-materials having unique characteristics and properties.