According to GB / T 30790-2014 (ISO 12944), from weakly corrosive indoor or inland (C2 and C3) to strongly corrosive industrial and marine environments (C4 and C5), the appropriate coating is recommended depending on the service life and the valve protective coating system.
System 1: Carbon steel surface, in the chemical industry, oil refining, marine and other atmospheric environment
Coating Products |
Dry Film Thickness Microns |
Applicable Environment (GB / T 30790) |
|
Option One |
H06-1-1 high solid epoxy zinc-rich primer |
80 |
Corrosive atmosphere environment C4 C5I and C5M |
H53-6 high solid epoxy mica iron rust-proof paint |
100 |
||
BS52-12 Acrylic polyurethane top coatings |
80 |
||
Option Two |
H53-30 Epoxy zinc phosphate antirust paint |
150 |
|
B52-12 Acrylic top coatings |
80 |
System 2: Non-carbon steel non-ferrous metal surface, such as stainless steel, galvanized parts, aluminum and other surfaces
Coating Products |
Dry Film Thickness Microns |
Applicable Environment (GB / T 30790) |
H53-10 non-ferrous metal epoxy primer |
50 |
Atmosphere environment C3 C4 C5I and C5M |
H53-6 high solid epoxy mica iron rust-proof paint |
80 |
|
BS52-12 Acrylic polyurethane top coatings |
80 |
System 3: Epoxy coal tar coating
Coating Products |
Dry Film Thickness Microns |
Applicable Environment (GB / T 30790) |
HL52-3 Epoxy bitumen high build primer coatings |
125 |
Buried or soaking Im1 Im2 Im3 |
HL52-3 Epoxy bitumen high build topcoat coatings |
125 |
System 4 : High performance epoxy coatings
Coating Products |
Dry Film Thickness Microns |
Applicable Environment (GB / T 30790) |
H53-16 High performance epoxy high build primer |
150 |
Buried or soaking Im1 Im2 Im3 |
H52-15 Epoxy high build coatings |
150 |
Note: Used in European countries where bituminous coating are forbidden
System 5: Solvent-free epoxy coatings
Coating Products |
Dry Film Thickness Microns |
Applicable Environment (GB / T 30790) |
H52-20 solvent-free epoxy primer |
200 |
Buried or soaking Im1 Im2 Im3 |
H52-20 solvent-free top coatings |
200 |
Note: Used in countries and areas with stringent environmental requirements and in European countries where bituminous coating are forbidden
System 6: High temperature environment: 160 ° C
Coating Products |
Dry Film Thickness Microns |
Applicable Environment (GB / T 30790) |
HS61-160 Epoxy polyurethane heat resistant corrosion protective primer |
80 |
160 ° C |
HS61-160 Epoxy polyurethane heat resistant corrosion protective coatings |
80 |
System 7: High temperature environment: 400 ° C
Coating Products |
Dry Film Thickness Microns |
Applicable Environment (GB / T 30790) |
WE61-400 Heat resistant corrosion protective paint primer |
60 |
400 ° C |
WE61-400 Heat resistant corrosion protective coatings |
50 |
System 8: High performance anticorrosion system
Coating Products | Dry Film Thickness Microns | Applicable Environment (GB / T 30790) |
WH06-1-1 water-based epoxy zinc-rich primer | 80 |
Corrosive atmosphere environment C4 C5I and C5M |
WH53-6 water-based epoxy mica iron rust-proof paint | 80 | |
WBS52-12 water-based acrylic polyurethane top coating | 80 |
System 9: Highly decorative primer-finish coating
Coating Products | Dry Film Thickness Microns | Applicable Environment (GB / T 30790) |
WBS918 water-based acrylic polyurethane primer-finish coating | 100~120 | General atmospheric environment C2 C3 |
System 10: Anticorrosive primer-finish coating
Coating Products | Dry Film Thickness Microns | Applicable Environment (GB / T 30790) | |
Option One |
WH998 water-based epoxy primer-finish coating |
100~120 |
General atmospheric environment C2 C3 |
Option Two |
water-based acrylic primer-finish coating |
100~120 |
System 11: water-based alkyd system
Coating Products | Dry Film Thickness Microns | Applicable Environment (GB / T 30790) |
SC06-1 water-based alkyd prime | 60 |
General atmospheric environment C2 C3 |
SC04-42 water-based alkyd enamel paint | 60 |
System 12: water-based acrylic acid
Coating Products | Dry Film Thickness Microns | Applicable Environment (GB / T 30790) |
SB52-12 water-based acrylic top coating | 80 |
General atmospheric environment C2 C3 |
SB52-12 water-based acrylic top coating | 80 |