glasspaper

noun

strong paper coated with powdered glass or other abrasive material for smoothing and polishing

verb

to smooth or polish with glasspaper

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Examples from the Web for glasspaper

Historical Examples of glasspaper

He even went to the length of occasionally buying a few sheets of glasspaper with his own money, as Crass had told Hunter.
The Ragged Trousered Philanthropists
Robert Tressell