- published: 03 May 2015
- views: 74608
A coating is a covering that is applied to the surface of an object, usually referred to as the substrate. In many cases coatings are applied to improve surface properties of the substrate, such as appearance, adhesion, wetability, corrosion resistance, wear resistance, and scratch resistance. In other cases, in particular in printing processes and semiconductor device fabrication (where the substrate is a wafer), the coating forms an essential part of the finished product.
Coating and printing processes involve the application of a thin film of functional material to a substrate, such as paper, fabric, film, foil or sheet stock. This article discusses what is frequently termed 'roll-to-roll' or 'web-based' coating. A roll of substrate, when wound through the coating machine, is typically called a web.
Coatings may be applied as liquids, gases or solids. Coatings can be measured and tested for proper opacity and film thickness by using a drawdown card.
Coating processes are classified as follows:
Those who lived, went back running
Her light steps approached the door
ChouTfs house stands before her
Long has she waited for this
Harried steeds
Their owners stumbled
To report that her malevolence
Too strong to conquer
Guan De Gun was summoned
Slayer of Demons, feared in all Hells
TgSubmit to my sword now and
TgI shall grant you a quick deathTh
Chiong Kui Ya was called upon
Upholder of Order, Ghost Destroyer
TgRun all you want, like all othersTh
TgExecution is inevitableTh
Care not whether I live or die
But thy judgement shall not be unjustified
Why have you all turned a blind?
ChouTfs obliquity absurdly connived.
Thy escape, infraction of the Laws of Hell
Your slaying of entire troop just increases the anger of us
Damned Demon Natao shall be unmercifully punished.
You all shall rue the moment you stepped forth
How Noble your Godship no matter.
For his soul gnaws at mine, my hunger
You shall not stop me for nonsensical reason.
Blades flashing, quicker than the eye
She parried with her own, slicing
Spells hurled, seeking to envelop
She absorbed, and responded tenfold
Both Heaven and Hell under-mined her
Legions died in their attempts to conquer
fallen bodies Natao gladly stepped over
To despoil ChouTfs life at sight and grab his soul to hell
Grab your soul to hell
Hateful, Grab your soul to hell
Hateful, Grab your soul to hell