Water Resistance Performance Comparison: Anjeka6072, 6208, and 578 in Various Formulation Systems

1. Viscosity Reduction Effect

Prepare a water-based resin-free pigment paste and compare the viscosity reduction performance of different dispersants.

2. Effect on Gloss

Add the resin-free pigment paste into different resin systems (water-based alkyd resin, styrene-acrylic emulsion, polyurethane dispersion, and epoxy emulsion) to prepare finished paints.
Apply the paints on test panels using a drawdown bar. After drying, measure the gloss.

3. Effect on Blistering After Water Immersion

After the coated panels are dried, immerse them in water for 7 days. Observe and record the blistering area on the panel surface.

4. Effect on Adhesion After Water Immersion

After water immersion, perform a cross-cut test on the coated panels using a cross-cut tester, followed by tape pull-off.
Observe and record the area of coating detachment.

Water-Based Resin-Free Pigment Paste Testing

Preparation Method

After preparing the formulations, add an equal amount of glass beads. Place the mixture in a shaker and shake for 2 hours.

Fineness (μm)                                                                 6072                             578                               6208

Water-Based Resin-Free White Paste                            ≤15                               ≤15                                ≤15

Water-Based Resin-Free Black Paste                             ≤15                              ≤15                                 ≤15

In both black and white resin-free pigment pastes, Anjeka6072 achieved lower viscosity compared to 6208 and 578, indicating superior viscosity reduction capability.
 

Preparation of Gray Paste

The gray paste was prepared by mixing the white paste and black paste in a ratio of 10:1 (white : black) until a homogeneous mixture was achieved.

Mix the water-based resin, water, and gray paste in proportion until homogeneous to obtain the gray paint.

Apply the paint on a sanded tinplate panel at a wet film thickness of 200 μm.

Gloss Test After Panel Drying

Conclusion

Anjeka 6072 exhibits gloss performance comparable to 6208 and superior to 578 across different resin systems, with the exception of the styrene-acrylic emulsion system, where it performs slightly less favorably than Xianchuang 578.

Overall, Anjeka 6072 has a minimal impact on gloss.

Panel Performance Test After 7 Days of Water Immersion

Water-Based Alkyd Resin System
	6072	578	6208
Blistering Area	20%	20%	20%
Cross-Cut Adhesion Test           Detachment Area	<1%	<1%	＜1%

Water-Based Alkyd Resin System: No significant difference in water resistance was observed among the three dispersants, with all showing less than 1% blistering and detachment areas.

Styrene-Acrylic Emulsion Syste
	6072	578	6208
Blistering Area	30%	20%	30%
Cross-Cut Adhesion Test           Detachment Area	15%	15%	15%

Styrene-Acrylic Emulsion System: 6072 exhibits water resistance comparable to 6208, but slightly inferior to 578.

Polyurethane Dispersion System
	6072	578	6208
Blistering Area	20%	30%	20%
Cross-Cut Adhesion Test           Detachment Area	＜1%	5%	＜1%

Polyurethane Dispersion System: 6072 exhibits water resistance comparable to 6208 and superior to 578.

Epoxy Emulsion System
	6072	578	6208
Blistering Area	10%	30%	10%
Cross-Cut Adhesion Test           Detachment Area	＜1%	5%	＜1%

Epoxy Emulsion System: 6072 demonstrates water resistance comparable to 6208 and superior to 578.

Anjeka Water-Based Dispersant 6072

Excellent Viscosity Reduction Effect                                 Minimal Impact on Gloss                                              Superior Water Resistance