pods for primates : a catalogue of surfboards in australia since 1900
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  glossary e 
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E Glass
Elephant Gun
see Gun.
elliptical rail
oval shaped rail, in cross section.
Egg
short (sub 7ft), round nose, round tail double ender with wide point about centre.
Extremely common design 1969 – 1972 (Wayne Lynch / Nat Young), it still has some application up to and including 1999 e.g. some mini-mal designs.

epoxy resin
a two part thermosetting resin, mostly used in boat and sailboards.
Stronger, harder and with better lamination than polyester resins, epoxy is not used in standard surfboard construction because of price and quality of finish.
Some application in wood veneer type boards and molded boards, e.g. Pro Circuit Boards.
1998 saw introduction of expoxy Surftech models, initially in longboard designs.
2002 saw addition of shortboards to the range.
Unlike polyester resin, epoxy does not react with polystyrene foam. 
exothermic reaction
chemical reaction, triggered by the addition of the catalyst, that produces heat as a byproduct.
Applies to both polyester and epoxy resins.
Initially (1949) resins were set by exposure to the sun, a particular difficulty in trying to cure the lapped rails. 
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home catalogue history references appendix