Sandpaper

Sandpaper or glasspaper are generic names used for a type of coated abrasive that consists of sheets of paper or cloth with abrasive material glued to one face. Despite the use of the names neither sand nor glass are now used in the manufacture of these products as they have been replaced by other abrasives. Sandpaper is produced in different grit sizes and is used to remove small amounts of material from surfaces, either to make them smoother (for example, in painting and wood finishing), to remove a layer of material (such as old paint), or sometimes to make the surface rougher (for example, as a preparation for gluing ). For the sake of clarity it is common to use the name of the abrasive when describing the paper, e.g. "aluminium oxide paper", or in the case of 3M's dark-grey Wetordry it is called "silicon carbide" paper.

History

The first recorded use of sandpaper was in 1st-century China when crushed shells, seeds, and sand were bonded to parchment using natural gum. Sandpaper was originally known as glass paper, as it was coated with particles of glass rather than sand. Glass frit has sharp-edged particles and cuts well whereas sand grains are smoothed down and do not work well as an abrasive. Cheap sandpaper was often passed off as true glass paper; Stalker and Parker cautioned against it in A Treatise of Japaning and Varnishing published in 1688. Glass paper was manufactured in London by 1833 by John Oakey, whose company had developed new adhesive techniques and processes, enabling mass production. A process for making sandpaper was patented in the United States on June 14, 1834 by Isaac Fischer, Jr., of Springfield, Vermont. In 1921, 3M invented a sandpaper with a waterproof backing, known as Wet and dry. This allowed use with water, which would serve as a lubricant to carry away particles that would otherwise clog the grit. Its first application was automotive paint refinishing.

Podcasts:

PLAYLIST TIME:

Sandpaper

by: FOZZY

A Cat-scratch
A whiplash
A witchhunt in black,
Sandpaper!
Sandpaper tears up my skin,
Grinding the state I'm in,
Millstone, my heart it scrapes,
Grabbing the soul it bleeds within,
Abrasive wounds that never heal,
Bleeding emotions are hard to feel,
Evasive sounds of true bliss calling,
Mauling your Paramour's kiss revealed...
Something happens when the dark meets the light,
Something happens when you start up the fight,
Something happens when the sun turns to grey,
Something happens when you scare the monsters away!
A Cat-scratch
A Whiplash
A witchhunt in black,
Sandpaper!
Flash paper burns to the bone,
Melting away with out a moan,
Blow torch my brain away,
There's nothing left for me to pray,
Eroding all that I become,
Taking and breaking all that I've won
Decoding thoughts within my mind
Bleeding and feeding what I might find...
Something happens when the dark meets the light,
Something happens when you start up the fight,
Something happens when the sun turns to grey,
Something happens when you scare the monsters away!
Something happens when the dark meets the light,
Something happens when you start up the fight,
Something happens when the sun turns to grey,
Visions happened that scare us away!
Something happens when the dark meets the light,
Something happens when you start up the fight,
Something happens when the sun turns to grey,
Something happens when you scare the monsters away!
A cat-scratch,
A Whiplash,
A witchhunt in black,
Sandpaper...
Sandpaper!
A cat-scratch, A whiplash,
A witchhunt in black,
Sandpaper...




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