… example, ebonite) in all forms, including waste and scrap; articles of hard rubber. …
Explanatory notes
… example, ebonite) in all forms, including waste and scrap; articles of hard rubber. Hard rubber (for example, ebonite) … and high levels of fillers, for example, coal, clays and silica. In the absence of fillers, pigments and cellular … is a hard, brownish‑black (or sometimes red) material which is relatively inflexible and inelastic and can be …