Durium

Durium is a highly durable synthetic resin developed in 1929. It was used in phonograph record production, as well as in the casting process for metallic type and in the aeronautics industry.

For other uses, see Durium (disambiguation).

Origin

It is a resorcinol-formaldehyde resin, the result of research by Hal T Beans, professor of chemistry at Columbia University.[1]

Properties

The resin is flexible, tasteless, odorless, fire and waterproof. It is highly resistant to heat and was heated to 230 °C (446 °F) in production of records. It is fast-setting, reducing the production cost of items made from it.

Applications

Being resistant to fire and water, the resin was used as a substitute for varnish on aeronautical parts.

It was commercialized by Durium Products Company (renamed Durium Products, Inc., from 1931) as the medium for Hit of the Week records, from 1930 to 1932. The resin was bonded to a cardboard substrate and, being much lighter than its predecessor shellac, was sold at newstands for only 15 cents per disc.[2]

gollark: ```rust if stack.len() < 2 { eprintln!("DOMAIN ERROR"); } else { let a = stack.pop().unwrap(); let b = stack.pop().unwrap();```I think you could abuse option combinators for this instead, though.
gollark: Apart from the `unwrap`s this seems reasonable.
gollark: How rustaceoformic.
gollark: <@356107472269869058> How has your rustaceoformic programming gone?
gollark: Oh, I was worried you were talking about me, but not actually that worried since I checked search and there wasn't anything so it was probably just (in that hypothetical world where you were talking about me) you lying for unknowable purposes.

References
  1. "UNBREAKABLE DISKS MADE OF NEW RESIN; Phonograph Records, Flexible and Cheap, Use Durium, Product of Dr. H.T. Beans. UNHURT BY HAMMER BLOWS Compound Which Withstands Heat of Molten Lead Expected to Find Many Industrial Uses". The New York Times. 4 January 1930. Retrieved 30 March 2018.
  2. "Science: Durium Records". Time Magazine. 17 February 1930. Retrieved 30 March 2018.
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