Silly Putty

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Silly Putty


[Binney & Smith] A bouncing, rubbery polymer developed in 1943 by James Wright at General Electric. Silly Putty is made from oil silicone oil polymerized by the addition of boric acid. Peter Hodgson gave the bouncing rubber the name Silly Putty in 1950 when he introduced it at the International Toy Fair in New York. Binney & Smith purchased the rights to the product in 1971. To celebrate its 50th anniversary, Silly Putty was put on display in the Smithsonian Institution.

Synonyms and Related Terms

Potty Putty (Br.); Tricky Putty

Hazards and Safety

May leave silicone oil residue on contacted surfaces.



Additional Information

Silly Putty: Website

Sources Checked for Data in Record