Please can i get help from CR4 experts to correct theses below given painting system which is given below and on more question developed is regarding the differentiating criteria between cyclic temperature condition and constant temperature condition for considering paint system P & Q.
|
PAINT SYSTEM |
Base Material |
TEMPERATURE |
Surface Preparation |
Primer |
Intermediate |
Finish |
Total DFT |
|
A | Un-insulated CS | Ambient to 120
0C | Sa 2.5 (Rz= 50 - 75 µm) | 2-pack Epoxy zinc rich (organic zinc) | 2-pack Eoxy MIO | 2-pack acrylic polyurethane |
275 µm |
| 75 µm | 150 µm | 50 µm |
|
B | Un-insulated CS | 121
0C to 200 0C | Sa 2.5 (Rz= 30 - 75 µm) | 2-pack ethyle zinc silicate (inorganic zinc) | NA | Silicon acrylic coating |
135 µm |
| 75µm | (30µm X 2) = 60 µm |
|
C | Un-insulated CS | 201
0C to 400 0C | Sa 2.5 (Rz= 30 - 75 µm) | 2-pack ethyle zinc silicate (inorganic zinc) | NA | Single pack silicon coating |
125 µm |
| 75µm | (25µm X 2) = 50 µm |
|
D | Un-insulated CS | 401
0C to 540 0C | Sa 2.5 (Rz= 30 - 75 µm) | Single pack silicon coating | NA | NA |
50 µm |
| (25µm X 2) = 50 µm |
|
P | Un-insulated CS Vessels and Cyclic temperature Piping | Ambient to 400
0C | Sa 2.5 (Rz= 50 - 75 µm) | Titanium Modified Inorganic Co-Polymer | NA | NA |
200 µm |
| (100µm X 2) = 200 µm |
|
Q | Un-insulated CS Constant operating temperature Piping | Ambient to 565
0C | Sa 2.5 (Rz= 50 - 75 µm) | Titanium Modified Inorganic Co-Polymer | NA | NA |
175 µm |
| 175 µm |
|
E | Un-insulated SS | (-196)
0 C to 200 0C | (Rz= 30 - 50 µm) | 2-pack epoxy phinolic primer | NA | 2-pack epoxy phinolic finish |
200 µm |
| 100 µm | 100 µm |
|
F | Un-Insulated / Non fireproofed Galvanized steel | Ambient temp. | (Rz= 30 - 50 µm) or mordant /etchning solution | 2-pack zinc free epoxy | NA | 2-pack acrylic polyurethane |
125 µm |
| 75µm | 50 µm |
|
K | Insulated CS Cryogenic services | Up to (-4
0C) | Sa 2.5 (Rz= 50 - 75 µm) | Epoxy phenolic primer | 2-pack Epoxy MIO | 2-pack acrylic polyurethane |
500 µm to 600 µm |
| (300µm to 400µm) | 150 µm | 50 µm |
|
L | Insulated CS Cryogenic services | (-4)
0 C to lower temperature | Sa 2.5 (Rz= 50 - 75 µm) | Silicon base primer (Hi-Temp 1027 Cryogenic type) | 2-pack Epoxy MIO | 2-pack acrylic polyurethane |
| 150 µm | 50 µm |
|
M | Insulated CS | Up to 150
0C | Sa 2.5 (Rz= 50 - 75 µm) | Epoxy phenolic primer or epoxy-novolac (Severe wet environment and critical process) | 2-pack Epoxy MIO | 2-pack acrylic polyurethane |
500 µm to 600 µm / 600 µm to 700 µm |
| (300µm to 400µm) / (400µm to 500µm) | 150 µm | 50 µm |
|
N | Insulated CS | Above 150
0C to 400 0C | Sa 2.5 (Rz= 30 - 75 µm) | Silicon base primer (Hi-Temp 1027 or Thurmaloux 70) | NA | Silicon acrylic coating |
| (30 µm X 2) = 60 µm |
|
O | Insulated CS | Above 400
0C to 648 0C | Sa 2.5 (Rz= 30 - 75 µm) | Silicon base primer (Hi-Temp 1027) | NA | Single pack Silicon based coating |
| (25µm X 2) = 50 µm |
|
P | Insulated CS and SS Vessels and Cyclic temperature Piping | (-196)
0 C to 400 0C | Sa 2.5 (Rz= 50 - 75 µm) | Titanium Modified Inorganic Co-Polymer | NA | NA |
200 µm |
| (100µm X 2) = 200 µm |
|
Q | Insulated CS and SS Constant operating temperature Piping | (-165)
0 C to 565 0C | Sa 2.5 (Rz= 50 - 75 µm) | Titanium Modified Inorganic Co-Polymer | NA | NA |
175 µm |
| 175 µm |
|
E | Insulated SS | (-196)
0 C to 200 0C | (Rz= 30 - 50 µm) | 2-pack epoxy phinolic primer | NA | 2-pack epoxy phinolic finish |
200 µm |
| 100 µm | 100 µm |
|
G | Fireproofed (with concrete) Galvanized stractural steel | Ambient temp. | (Rz= 10 - 15 µm) or mordant /etchning solution | 2-pack poly amide epoxy (for touch of HDG) | NA | NA |
NA |
|
H | Fireproofed (with concrete) Stractural Carbon steel | Ambient temp. | Sa 2.5 (Rz= 50 - 75 µm) | 2-pack poly amide epoxy | NA | NA |
75 µm |
| 75 µm |
To be corrected the industrial coating system
