TABLE 8.3
Continued
Resistance
To
Coating
Type UV Weather
A
cid Alkali Moisture
Salt
Solutions Comments
Silicones, water
repellent in
water or solvent
R R
N N
R U
sed on masonry
surfaces
Silicones, water
based aqueous
emulsions of polyvinyl
acetate, acrylic or styrene–
butadiene latex
R R
N N
May flash
rust as
a primer on steel.
Not chemically
resistant
Polyesters, organic acids combined with polybasic alcohols.
Styrene is
a reaction diluent
PR
R R
N M
ust be applied
with
special equipment. Not suitable for
use with
most aromatic solvents
Coal tar
N N
Weak
Weak
R U
sed on submerged or buried steel
R R
Asphalt. Solids from crude oil
refining in aliphatic solvents
R R
Weak
R
Weak
R
R W
eak
R
Used in above ground
weathering
environments and chemical
fume
atmospheres
Zinc-rich metallic zinc in an
organic
or inorganic vehicle
Provides galvanic
protection
as
a primer
Acrylic-resin water
emulsion
base
R R
Weak
R
Weak
R
Limited penetrating power.
May
flash rust as
a primer over bare
steel. Not suitable for
immersion
service. Soluble in ketones, esters,
aliphatic chlorinated hydrocarbons, and
aromatic hydrocarbons
Note: R,
resistant; N, not
resistant; PR, poor
resistance.
Corrosion of Linings and Coatings
498
CAT8247—CHAPTER 8—17/10/2006—14:20—SRIDHAR—XML MODEL B–pp. 487–507
Continued
Resistance
To
Coating
Type UV Weather
A
cid Alkali Moisture
Salt
Solutions Comments
Silicones, water
repellent in
water or solvent
R R
N N
R U
sed on masonry
surfaces
Silicones, water
based aqueous
emulsions of polyvinyl
acetate, acrylic or styrene–
butadiene latex
R R
N N
May flash
rust as
a primer on steel.
Not chemically
resistant
Polyesters, organic acids combined with polybasic alcohols.
Styrene is
a reaction diluent
PR
R R
N M
ust be applied
with
special equipment. Not suitable for
use with
most aromatic solvents
Coal tar
N N
Weak
Weak
R U
sed on submerged or buried steel
R R
Asphalt. Solids from crude oil
refining in aliphatic solvents
R R
Weak
R
Weak
R
R W
eak
R
Used in above ground
weathering
environments and chemical
fume
atmospheres
Zinc-rich metallic zinc in an
organic
or inorganic vehicle
Provides galvanic
protection
as
a primer
Acrylic-resin water
emulsion
base
R R
Weak
R
Weak
R
Limited penetrating power.
May
flash rust as
a primer over bare
steel. Not suitable for
immersion
service. Soluble in ketones, esters,
aliphatic chlorinated hydrocarbons, and
aromatic hydrocarbons
Note: R,
resistant; N, not
resistant; PR, poor
resistance.
Corrosion of Linings and Coatings
498
CAT8247—CHAPTER 8—17/10/2006—14:20—SRIDHAR—XML MODEL B–pp. 487–507