epoxiesa re compatiblew ith the following materials at 2008 F( 938 C) unless
otherwise noted:
Acids
Acetic, 10% to 1508 F(668 C)
Benzoic
Butyric
Fatty acids
Hydrochloric, 10%
Oxalic
Rayon spin bath
Sulfuric, 20% to 1808 F( 828 C)
Bases
Sodium hydroxide, 50% to 1808 F(828 C)
Sodium sulfide, 10%
Trisodium phosphate
Magnesium hydroxide
Salts, Metallic salts
Aluminum
Calcium
Iron
Magnesium
Potassium
Sodium
Most ammonium salts
Alcohols, Solvents
Methyl
Ethyl acetate,t o1508 F( 668 C)
Ethyl
Naphtha
Isopropyl, to 1508 F( 668 C)
Toluene
Benzene, to 1508 F( 668 C)
Xylene
Miscellaneous
Distilled water
Sea water
Jet fuel
Gasoline
White liquor
Diesel fuel
Sour crude oil
Black liquor
Epoxies are not satisfactoryf or use with:
Bromine water
Chromic acid
Bleaches
Fluorine
Methylene chloride
Hydrogen peroxide
Sulfuric acid above 70%
Wetchlorine gas
Wetsulfur dioxide
Refer to Table 4.5 for the compatibility of epoxy with selected corrodents,
and Reference [1] for am ore comprehensive listing.
Epoxyr esins must be curedw ith cross-linkinga gents (hardeners) or
catalysts to developt he desired properties. Cross-linking takesp lace at the
epoxy and hydroxylg roups that are the reaction sites. The primary types
of curing agents used for linings are the aliphatica mines and catalytic
curing agents. Epoxies (aminec atalyst) are widely used because curing of
the epoxies takes place at room temperature. Highe xothermic reactions
develop during the curing reaction, which limits the mass of material that
can be cured. Amine-cured coatings exhibit good resistance to alkalies,
and fair to good resistance to mild acids, solvents, and dry foodp roducts.
Theya re widely used for hopper car linings and nuclear containment
facilities. The maximum allowable temperature is 2758 F( 1358 C).
Catalytic curing agents requireatemperature of 2008 F(938 C) or higher to
react. These baked epoxiese xhibit excellent to acids, alkalies, solvents,
Corrosion of Linings and Coatings
86
CAT8247—CHAPTER 4—17/10/2006—14:33—SRIDHAR—XML MODEL B–pp. 69–174
otherwise noted:
Acids
Acetic, 10% to 1508 F(668 C)
Benzoic
Butyric
Fatty acids
Hydrochloric, 10%
Oxalic
Rayon spin bath
Sulfuric, 20% to 1808 F( 828 C)
Bases
Sodium hydroxide, 50% to 1808 F(828 C)
Sodium sulfide, 10%
Trisodium phosphate
Magnesium hydroxide
Salts, Metallic salts
Aluminum
Calcium
Iron
Magnesium
Potassium
Sodium
Most ammonium salts
Alcohols, Solvents
Methyl
Ethyl acetate,t o1508 F( 668 C)
Ethyl
Naphtha
Isopropyl, to 1508 F( 668 C)
Toluene
Benzene, to 1508 F( 668 C)
Xylene
Miscellaneous
Distilled water
Sea water
Jet fuel
Gasoline
White liquor
Diesel fuel
Sour crude oil
Black liquor
Epoxies are not satisfactoryf or use with:
Bromine water
Chromic acid
Bleaches
Fluorine
Methylene chloride
Hydrogen peroxide
Sulfuric acid above 70%
Wetchlorine gas
Wetsulfur dioxide
Refer to Table 4.5 for the compatibility of epoxy with selected corrodents,
and Reference [1] for am ore comprehensive listing.
Epoxyr esins must be curedw ith cross-linkinga gents (hardeners) or
catalysts to developt he desired properties. Cross-linking takesp lace at the
epoxy and hydroxylg roups that are the reaction sites. The primary types
of curing agents used for linings are the aliphatica mines and catalytic
curing agents. Epoxies (aminec atalyst) are widely used because curing of
the epoxies takes place at room temperature. Highe xothermic reactions
develop during the curing reaction, which limits the mass of material that
can be cured. Amine-cured coatings exhibit good resistance to alkalies,
and fair to good resistance to mild acids, solvents, and dry foodp roducts.
Theya re widely used for hopper car linings and nuclear containment
facilities. The maximum allowable temperature is 2758 F( 1358 C).
Catalytic curing agents requireatemperature of 2008 F(938 C) or higher to
react. These baked epoxiese xhibit excellent to acids, alkalies, solvents,
Corrosion of Linings and Coatings
86
CAT8247—CHAPTER 4—17/10/2006—14:33—SRIDHAR—XML MODEL B–pp. 69–174