Erasers aren’t all the same. From natural rubber to vinyl and modern synthetics, each material affects feel, residue, and precision. Explore how manufacturing works, why friction and adhesion lift graphite cleanly, and when to choose rubber, vinyl/plastic, kneaded, or specialty electric erasers. We also cover additives (fillers, pigments, softeners), allergy-safe options, and simple cleaning/storage tips to keep your erasers performing like new.
Art & Inspiration
Primary & Secondary Colors: Definition, List
Primary and secondary colors are the foundation of color theory. Primary colors—red, yellow, and blue—cannot be mixed from other pigments, while secondary colors—orange, green, and purple—come from blending primaries. This guide explains their definitions, the role of tertiary colors, and how the color wheel connects them. Perfect for artists, designers, and educators, with hands-on mixing techniques (including Gel Press plates) and practical tips for applying colors in art, design, and classrooms.












