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Εταιρικές υποθέσεις Test Report:Epoxy Resin Silica Microsphere Filler Slurry

Test Report:Epoxy Resin Silica Microsphere Filler Slurry

2026-03-11
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                                              professional additives manufacturer

Experiment Record Form

Test Name: Epoxy Resin Silica Microsphere Filler Slurry Temperature/Humidity:  
Client:   Applicant: Mr Yang Test Date: February 26, 2026    

Objective: Testing viscosity reduction, defoaming, and anti-settling properties of filler slurry for epoxy potting compounds

Pigment Paste Formulation
 40 
692 1.2 
Dispersant 0.2 6912, 6910A, 6911A
Defoamer 0.2 5680A, 5088
Anti-settling Agent 0.2 6710, 4410S
Silica Microsphere 60 Customer
128 Resin 40 Customer          
692 1.2 Customer          
Dispersant 0.2 6912,6910A,6911A          
Defoamer 0.2 5680A,5088          
Anti-settling Agent 0.2 6710,4410S          
Silica Microsphere 60 Customer          
Experimental Method
High-speed stirring at 2000 rpm for 15 minutes for comparison.
Test Results
Test  6710 4410S
6912 6910A 6911A 6912 6910A 6911A
 382123 179552 276233 244006 110493 138117 178266
 375217 377519 379821 195665
Gloss 20°:22.2 60°:93.8 20°: 66.4 60°: 99.4 20°: 38.5 60°:83.1 20°: 16.2 60°: 92.6 20°: 38.9 60°:90.7 20°: 43.5 60°:89.5 20°: 42.2 60°: 92
Anti-settling Soft sedimentation No sedimentation No sedimentation No sedimentation Soft sedimentation No sedimentation Soft sedimentation
Test Blank 6710 4410S
6912 6910A 6911A 6912 6910A 6911A
Pre-Heat Storage Viscosity 382123 179552 276233 244006 110493 138117 178266
Viscosity after 1 day thermal storage   375217 377519 379821   195665  
Gloss 20°:22.2 60°:93.8 20°: 66.4 60°: 99.4 20°: 38.5 60°:83.1 20°: 16.2 60°: 92.6 20°: 38.9 60°:90.7 20°: 43.5 60°:89.5 20°: 42.2 60°: 92
Anti-settling Soft sedimentation No sedimentation No sedimentation No sedimentation Soft sedimentation No sedimentation Soft sedimentation
Defoaming: 6910A demonstrated the best defoaming effect in 4410S, with minimal bubbles around the cup and no surface bubbles.
Testing 4410S
5088 5680A
6910A(0.2%) 6910A(0.4%) 6910A (0.4%)
Viscosity before thermal storage 225591 250912 262422
Viscosity after 1 day thermal storage 264724 375279 271779
Gloss 20°: 58.4 60°:98.5 20°: 70.8 60°:99.1 20°: 60 60°: 93.7
Settling No sediment No sediment No sediment
Defoaming Minimal bubbles around cup, no surface bubbles Surface bubbles present
Test 4410S        
5088 5680A        
6910A(0.2%) 6910A(0.4%) 6910A(0.4%)        
Viscosity before thermal storage 225591 250912 262422        
Viscosity after 1 day thermal storage 264724 375279 271779        
Gloss 20°: 58.4 60°:98.5 20°: 70.8 60°:99.1 20°: 60 60°: 93.7        
Anti-settling No sedimentation No sedimentation No sedimentation        
Defoaming Minimal bubbles around the cup, no surface bubbles Surface bubbles present        

Conclusion

The best results were achieved using 4410S as the anti-settling agent, 6910A as the dispersant, and 5088 as the defoamer.
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