CM-3380 Water based Epoxy Resin Product User Manual
characteristic:
High gloss, excellent fast offline packaging performance, and good adhesion on metal surfaces
Purpose:
Preparation of anti-corrosion water-based self drying and low-temperature baking series mixed paint, enamel paint, and motor shell coating
nature:
Appearance: Brownish yellow viscous liquid
Solid content% (120 ℃, 2h） ：67±2
Viscosity, rotational viscometer, cps：40000-100000
Type: Water based epoxy ester
Application reference
1. The resin has been neutralized, and when making clear varnish, use dimethyl ethanolamine to adjust the pH value to 9 or above;
2. Self drying, oxidation crosslinking type, requires the use of a drying agent, with an addition amount of about 3% of the resin content;
3. Water dispersible resin, which can participate in slurry grinding;
4. The resin based paint process is similar to solvent based paint, but attention should be paid to changes in pH value and the impact of pigments on the resin
CM-3380 formula for water-based silver powder baking paint
| Clearcoat to water conversion process |
ratio |
| CM-3380 resin |
35 |
| Dimethylethanolamine |
1.6 |
| Anti settling wax slurry |
2.0 |
| Ethylene glycol butyl ether |
5.0 |
| isopropanol |
7.0 |
| deionized water |
23.2 |
| BASF 3772 leveling agent |
0.2 |
| 625 amino resin |
7.0 |
| Phosphate ester adhesion promoter |
2.0 |
| After soaking, add it to the varnish and disperse it |
| Water based passivated aluminum silver paste |
7.5 |
| Ethylene glycol butyl ether |
3.0 |
| deionized water |
6.0 |
| BYK-192 dispersant |
0.3 |
| Tego 270 Wetting Agent |
0.2 |
| total |
100 |
Project (150 ℃, 20 minutes)
Adhesion Level (Aluminum Alloy): Level 0
Adhesion Level (without polishing the tinplate): Level 0
Adhesion Level (Electrophoretic Base): Level 0
Bending: ＜ 1mm
Pencil hardness: 2H
Impact: 50cm forward and backward impact
Alcohol resistant wiping: 300 times without any abnormalities
Resistant to xylene immersion: no abnormalities after 120 hours
Resistant to cyclohexanone wiping: 300 times without any abnormalities
Water resistance (under ventilated conditions, 25 ℃, air humidity<75H, 7d): ≥ 168 hours (no foaming, no peeling)
Boiling resistant water: 3h
Neutral salt spray resistance: ≥ 144 hours (no foaming, no peeling)
Repainting ability: 3 coats, 3 baking grids without peeling paint
CM-3380 Low temperature baking (matte black) reference formula
| workmanship |
ratio |
| carbon black |
2.5 |
| Ultrafine barium sulfate |
15 |
|
basf6208
|
0.7 |
| water |
21.2 |
| A-200 gas silicon |
0.5 |
| TEGO 901W defoamer |
0.1 |
| Total: 40, above ground |
|
CM-3380
|
26 |
|
DMEA
|
1 |
| CM-001 drying agent |
0.9 |
| BCS |
4 |
| water |
25.6 |
| Anti flash rust agent |
0.5 |
| Composite anti rust filler |
2 |
| total |
100 |
Project
Dry (under ventilated conditions, 25 ℃), surface dryness ≤ 1h: 40min, finger pressure drying ≤ 12h: 2h, hard drying ≤ 72h: 48h
Hardness: ≥ HB
Adhesion: ≤ Level 1
Initial water resistance (self drying under ventilated conditions for 24 hours, 25 ℃): ≥ No bubbles or detachment within 72 hours
Water resistance (self drying for 7 days under ventilated conditions, 25 ℃): ≥ 168 hours without foaming or peeling off
Salt spray resistance: ≥ Corrosion at the marked area within 120 hours should be ≤ 2mm, and there should be no bubbles or wrinkles at the unmarked area
Recommended solution for 3380 resin topcoat (white)
| Grinding process |
ratio |
| CM-3380 resin |
15 |
| Dimethylethanolamine |
0.3 |
| Ethylene glycol butyl ether |
3 |
| isopropanol |
3 |
| 001 drying agent |
0.8 |
| deionized water |
10 |
| Formax 755W dispersant |
0.2 |
| 810 defoamer |
0.1 |
| titanium dioxide |
20 |
| M-5 gas silicon |
0.5 |
| deionized water |
24 |
| Anti flash rust additive |
0.3 |
| Dilution process |
| CM-3380 resin |
15 |
| Dimethylethanolamine |
0.9 |
| deionized water |
0.3 |
| Polyurethane Associative Thickener |
7.4 |
| Anti flash rust agent |
appropriate amount |
| Formax270 Wetting Agent |
0.1 |
| total |
100 |
Reference formula and instructions for water-based white topcoat
Water based white topcoat, no anti rust pigment filler, substrate: tinplate/cold-rolled sheet; After drying for 2 days and baking at 80 ℃ for 3 hours, various indicators were tested.
Process description: 1 Put 1-5 into the dispersing cylinder in order and stir evenly. Then add 6 materials and mix them evenly with high-speed water. After measuring the pH value>9, put 7-12 materials into high-speed dispersing and grinding.
2. Grind the above materials with a sand mill and control the speed and temperature. The temperature should not exceed 50 degrees Celsius, and grind to a fineness of less than 30 microns.
3. Add 13-14 ingredients in sequence and stir evenly, then add 15 and stir evenly before adding 1-12 slurry. Adjust the viscosity with 16 and add 17 and stir evenly before packaging.
4. This formula contains 41% solid content, with a color to base ratio of P/B ≈ 1
CM-3380 Basic Performance Testing Indicators
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