
1) Brand name material 
Found on 
https://www.crosswordclues.com/clue/corian

 Corian is the brand name for a solid surface material created by E. I. du Pont de Nemours and Company (DuPont). It is the original material of this type, created by DuPont scientists in 1967.It is composed of acrylic polymer and alumina trihydrate (ATH), a material derived from bauxite ore. Its primary use is as a countertop/benchtop surface, thou...
Found on 
http://en.wikipedia.org/wiki/Corian

this is a compound of natural materials that are combined with acrylic polymer. This is used to help strengthen a range of heard wooden surfaces, making them stronger and more durable.
Found on 
http://www.jardinesjoinery.com/2012/06/jardines-joinery-cheshire-glossary-o
  No exact match found.