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

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

 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)

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