C-4A PAINTING CONTRACTOR -
MATERIALS
Protection,77Decoration,77Function77-77answer--
The77basic77purposes77of77paint77and77coating77materials.
Moisture77-77answer--
Resistance77to77____________77or77the77controlled77passage77of77moisture77through77v
arious77surfaces77constitute77perhaps77the77greatest77protective77function77of77paint.
Abrasion-resistant77-77answer--
____________77paints,77for77instance,77protect77walls77and77surfaces77from77unnecess
ary77mars77and77scratches77in77homes,77offices,77and77high77traffic77places77such77as77
hospital77corridors.
Antifouling77paints77-77answer--
______________77are77used77on77ship77hulls77to77prevent77the77growth77of77barnacles.
Intumescent77paints77-77answer--
___________77paints,77which77swell77into77a77protective77layer77of77insulating77foam77w
hen77heated77to77a77certain77level,77protect77industrial77steel77from77extensive77damage7
7in77the77event77of77a77fire.
Pigment77-77answer--
Finely77ground,77natural77or77synthetic,77inorganic77or77organic,77insoluble77particles77w
hich,77when77dispersed77in77a77liquid77vehicle77to77make77paint,77ay77provide,77in77additi
on77to77color,77many77of77the77essential77properties77of77a77paint77--
77opacity,77hardness,77durability,77and77corrosion77resistance.
Resin77-77answer--Binder77Component
Solvent77-77answer--
A77liquid,77usually77volatile,77which77is77used77in77the77manufacture77of77paint77to77dissol
ve77or77disperse77the77film-
forming77constituents,77and77which77evaporates77during77drying77and,77therefore,77does
77not77become77part77of77the77dried77film.
, Additive77-77answer--
Any77substance77added77in77small77quantities77to77another77substance,77usually77to77im
prove77its77properties.
The77binder77and77solvent77together77-77answer--
__________77constitute77a77vehicle77for77dispersed77pigment77particles
Resin77-77answer--Binder77is77also77known77as
Water77-77answer--Sometimes77called77the77universal77solvent.
Solvents77-77answer--
The77purpose77of77__________77,77in77every77case,77is77to77dissolve77or77suspend77soli
d77paint77constituents77and77to77reduce77viscosity77enough77so77that77the77paint77can77b
e77applied77to77a77surface77by77brush,77roller,77spray,77or77other77means.
Hydrocarbon77Solvents77-77answer--
__________77are77obtained77from77petroleum77or77coal77tar77sources.
Petroleum77Hydrocarbon77Solvents77-77answer--
__________77are77derived77from77the77distillation77of77crude77oil.
Hydrocarbon77Solvents77-77answer--may77be77classified77as77aliphatic77or77aromatic.
Aliphatic77hydrocarbons77-77answer--
__________77are77nonpolar,77which77means77they77do77not77exhibit77an77attraction77to77
other77liquids77or77solids.77Examples77of77aliphatic77hydrocarbon77solvents77include77mi
neral77spirits,77VM&P77(varnish77makers77and77painters)77naptha,77and77other77material
s77such77as77hexane77and77heptane.
Aliphatic77hydrocarbons77-77answer--
They77are77generally77the77least77expensive77of77all77solvents,77and77are77considered77t
he77least77toxic77of77the77solvent77classes.
Naphthenic77Hydrocarbons77-77answer--
Are77aliphatic77hydrocarbon77solvents,77but77they77have77a77cyclical77ring77molecular77st
ructure.
Aromatic77hydrocarbons77-77answer--
Are77solvents77made77of77compounds77that77contain77the77benene77ring77structure.
toluene77(toluol)77and77xylene77(xylol)77-77answer--
The77most77common77aromatic77hydrocarbon77solvents77are77_________.
Turpentines77-77answer--
are77actually77hydrocarbon77solvents,77but77they77are77categorized77separately77becaus
MATERIALS
Protection,77Decoration,77Function77-77answer--
The77basic77purposes77of77paint77and77coating77materials.
Moisture77-77answer--
Resistance77to77____________77or77the77controlled77passage77of77moisture77through77v
arious77surfaces77constitute77perhaps77the77greatest77protective77function77of77paint.
Abrasion-resistant77-77answer--
____________77paints,77for77instance,77protect77walls77and77surfaces77from77unnecess
ary77mars77and77scratches77in77homes,77offices,77and77high77traffic77places77such77as77
hospital77corridors.
Antifouling77paints77-77answer--
______________77are77used77on77ship77hulls77to77prevent77the77growth77of77barnacles.
Intumescent77paints77-77answer--
___________77paints,77which77swell77into77a77protective77layer77of77insulating77foam77w
hen77heated77to77a77certain77level,77protect77industrial77steel77from77extensive77damage7
7in77the77event77of77a77fire.
Pigment77-77answer--
Finely77ground,77natural77or77synthetic,77inorganic77or77organic,77insoluble77particles77w
hich,77when77dispersed77in77a77liquid77vehicle77to77make77paint,77ay77provide,77in77additi
on77to77color,77many77of77the77essential77properties77of77a77paint77--
77opacity,77hardness,77durability,77and77corrosion77resistance.
Resin77-77answer--Binder77Component
Solvent77-77answer--
A77liquid,77usually77volatile,77which77is77used77in77the77manufacture77of77paint77to77dissol
ve77or77disperse77the77film-
forming77constituents,77and77which77evaporates77during77drying77and,77therefore,77does
77not77become77part77of77the77dried77film.
, Additive77-77answer--
Any77substance77added77in77small77quantities77to77another77substance,77usually77to77im
prove77its77properties.
The77binder77and77solvent77together77-77answer--
__________77constitute77a77vehicle77for77dispersed77pigment77particles
Resin77-77answer--Binder77is77also77known77as
Water77-77answer--Sometimes77called77the77universal77solvent.
Solvents77-77answer--
The77purpose77of77__________77,77in77every77case,77is77to77dissolve77or77suspend77soli
d77paint77constituents77and77to77reduce77viscosity77enough77so77that77the77paint77can77b
e77applied77to77a77surface77by77brush,77roller,77spray,77or77other77means.
Hydrocarbon77Solvents77-77answer--
__________77are77obtained77from77petroleum77or77coal77tar77sources.
Petroleum77Hydrocarbon77Solvents77-77answer--
__________77are77derived77from77the77distillation77of77crude77oil.
Hydrocarbon77Solvents77-77answer--may77be77classified77as77aliphatic77or77aromatic.
Aliphatic77hydrocarbons77-77answer--
__________77are77nonpolar,77which77means77they77do77not77exhibit77an77attraction77to77
other77liquids77or77solids.77Examples77of77aliphatic77hydrocarbon77solvents77include77mi
neral77spirits,77VM&P77(varnish77makers77and77painters)77naptha,77and77other77material
s77such77as77hexane77and77heptane.
Aliphatic77hydrocarbons77-77answer--
They77are77generally77the77least77expensive77of77all77solvents,77and77are77considered77t
he77least77toxic77of77the77solvent77classes.
Naphthenic77Hydrocarbons77-77answer--
Are77aliphatic77hydrocarbon77solvents,77but77they77have77a77cyclical77ring77molecular77st
ructure.
Aromatic77hydrocarbons77-77answer--
Are77solvents77made77of77compounds77that77contain77the77benene77ring77structure.
toluene77(toluol)77and77xylene77(xylol)77-77answer--
The77most77common77aromatic77hydrocarbon77solvents77are77_________.
Turpentines77-77answer--
are77actually77hydrocarbon77solvents,77but77they77are77categorized77separately77becaus