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Screening Test Report of Dispersants for White Paint in Hydroxy Acrylic Resin System

2026-06-12

Sanmu 965 resin is a thermosetting hydroxy acrylic resin.

Parameter	Value
Appearance	Water-white to light yellow transparent liquid
Solid content	65±1%
Viscosity (25°C, Gardner)	50–80 S
Acid value	≤5–8 mg KOH/g
Hydroxyl value	56
Solvent	Xylene, Butyl acetate

Viscosity of White Paste in Hydroxy Acrylic Resin System Before and After Hot Storage

latest company case about Screening Test Report of Dispersants for White Paint in Hydroxy Acrylic Resin System 0

Test Method	Store at 60°C for 7 days, measure viscosity change
Test Results	6110A, 6915, 6916, and 6500-50 show good performance in both viscosity reduction and post-thickening control; 6110S shows significant viscosity increase after hot storage
Performance Rating	6110	6110S	6402	6110A	6915	6916	6976A	6500-50
	6	2	6	8	8	8	6	8
8 — Best, 6 — Good, 4 — Fair, 2 — Poor

Gloss of White Paste in Hydroxy Acrylic Resin System Before and After Hot Storage

latest company case about Screening Test Report of Dispersants for White Paint in Hydroxy Acrylic Resin System 1

Test Method	Store at 60°C for 7 days, measure gloss change
Test Results	6110, 6110S, and 6402 show good performance in both 20° and 60° gloss; 6915 and 6916 show good 20° gloss but poor 60° gloss
Performance Rating	6110	6110S	6402	6110A	6915	6916	6976A	6500-50
	8	8	8	4	6	6	4	6
8 — Best, 6 — Good, 4 — Fair, 2 — Poor

L-Value of White Paste in Hydroxy Acrylic Resin System Before and After Hot Storage

latest company case about Screening Test Report of Dispersants for White Paint in Hydroxy Acrylic Resin System 3

Test Method	Store at 60°C for 7 days, measure L-value change
Test Result	The test results show that 6915, 6916, and 6500-50 all deliver good L-value performance
Performance Rating	6110	6110S	6402	6110A	6915	6916	6976A	6500-50
	6	6	6	6	8	8	4	8
8 — Best, 6 — Good, 4 — Fair, 2 — Poor

Dispersant Recommendations for White Paint in Hydroxy Acrylic System

6402 — The "All-Rounder" in the 965 System

Core Advantage:
Best gloss performance. Low initial viscosity, with only a slight increase after 7 days of hot storage; good L-value performance as well.

Overall Performance:
Its gloss (20°/60°), viscosity, and L-value are all among the top performers in the system, with well-balanced and excellent indicators. This dispersant delivers outstanding and stable performance, making it a reliable choice.

6500-50

Viscosity Control:
Viscosity remains stable at approximately 1881 mPa·s after hot storage, ranking among the top performers.

Appearance Performance:
Excellent L-value and gloss performance.

Conclusion:
Overall performance is second only to 6402, making it suitable for applications with high L-value requirements.

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