vulcanite
Cured rubber compound
Vulcanite is hard rubber made by heating natural rubber with sulfur—a process called vulcanization.
The material was widely used in the 19th and early 20th centuries for combs, fountain pen barrels, denture bases, and electrical insulation.
It's largely been replaced by modern plastics but still appears in specialized applications.
Hard vulcanized rubber
- thermosettingHardens permanently when heated
- rigidUnable to bend
- moldableCapable of being shaped
- polishableCapable of being shined
mottled · lustrous · non-conductive · heat-resistant · acid-resistant · waterproof · turnable · carvable
Writing instruments with internal reservoirs
- combsToothed grooming tools
- electrical insulationMaterial blocking current escape
- denturesRemovable artificial teeth
- billiard ballsNumbered spheres for cue sports
chess pieces · buttons · handles · scientific instruments · photographic equipment · musical instruments · bowling balls · jewelry
Early thermosetting synthetic resin
- celluloidTransparent flammable synthetic material
- caseinDairy phosphoprotein for industry
- shellacResinous wood coating
- natural rubberElastic polymer from plants
latex · papier-mâché · horn · tortoiseshell
Yellow combustible element
- curingRestoring health or preserving
- cross-linkingBonds joining parallel chains
- heatTransferred thermal energy
- moldingDecorative architectural edging
pressing · calendering · extrusion · machining · turning · polishing · finishing · Charles Goodyear
Old valued collectible
- vintageQuality from past eras
- VictorianOf a prim era
- EdwardianOf early twentieth-century Britain
- patinaSurface film from aging
oxidation · restoration · collectors · memorabilia · period pieces · historical artifacts · museum pieces
Able to withstand use
- resilientAble to recover quickly
- hardFirm or demanding
- rigidUnable to bend
- insulatingPreventing heat or electricity passage
non-conductive · chemical-resistant · acid-resistant · waterproof · wear-resistant · tough · sturdy · long-lasting
Removable oral prosthesis
- false teethArtificial replacement teeth
- prosthesisManufactured replacement body part
- palateOral cavity ceiling
- impressionEffect on the mind
dental mold · fitted · comfortable · hygienic
ebonite
Hard vulcanized rubber
- thermosettingHardens permanently when heated
- rigidUnable to bend
- moldableCapable of being shaped
polishable · mottled · lustrous · non-conductive · heat-resistant · acid-resistant · waterproof · turnable · carvable · opaque
fountain pens
Writing instruments with internal reservoirs
- combsToothed grooming tools
- electrical insulationMaterial blocking current escape
- denturesRemovable artificial teeth
billiard balls · chess pieces · buttons · handles · scientific instruments · photographic equipment · musical instruments · bowling balls · jewelry · mouthpieces
bakelite
Early thermosetting synthetic resin
- celluloidTransparent flammable synthetic material
- caseinDairy phosphoprotein for industry
- shellacResinous wood coating
natural rubber · latex · papier-mâché · horn · tortoiseshell
sulfur
Yellow combustible element
- curingRestoring health or preserving
- cross-linkingBonds joining parallel chains
- heatTransferred thermal energy
molding · pressing · calendering · extrusion · machining · turning · polishing · finishing · Charles Goodyear · Hancock
antique
Old valued collectible
patina · oxidation · restoration · collectors · memorabilia · period pieces · historical artifacts · museum pieces
durable
Able to withstand use
insulating · non-conductive · chemical-resistant · acid-resistant · waterproof · wear-resistant · tough · sturdy · long-lasting · polishable
dental plate
Removable oral prosthesis
- false teethArtificial replacement teeth
- prosthesisManufactured replacement body part
- palateOral cavity ceiling
impression · dental mold · fitted · comfortable · hygienic
- vulcanized rubberHeat-treated elastic polymer
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