Precipitated Silica

Leading manufacturer of precipitated silica High purity good price

 Application performance of ZC Series silica Matting agent

excellent transparency no haze formationfilm full of good, smooth fell, hard-wearing and high quality surfacerecoating of paint film adhesion are not affectedhigh shear stability, resistance to over-grindingminimal impact on the mechanical properties of the film, such as hardness or flexibilityno impact on the curing propertiessmall negative impact on the film’s weather abilityno hard precipitates formed in storage.

item	ZC-305	ZC-705	ZC-750	ZC-750Y	ZC-770
Heating Loss%	≤4	≤4	≤4	≤8	≤8
Ignition Loss%	≤4	≤7	≤7	≤13	≤7
5%Aqueous Suspension)	3.0-4.0	6.0-7.0	6.0-7.0	6.0-7.0	2.0-3.5
Oil AbsorptionValue(cm3/g)	3.0-4.5	2.0-3.5	2.0-3.5	2.0-3.5	2.0-3.5
Medium particle size(D50)µm	4.2-5.2	4.2-5.2	5.0-6.0	5.0-6.0	7.2-8.2
BET Special Surface Area(m2/g)	320-400	250-350	250-350	250-350	250-350
SiO2(Dry Basis)%	≥99	≥99	≥99	≥99	≥99
Whiteness%	≥96	≥96	≥96	≥96	≥96
Pore Volume(ml/g)	2.2±0.1	2.2±0.1	2.2±0.1	2.2±0.1	2.2±0.1
FE(ppm)	≤200	≤200	≤200	≤200	≤200
Grind(µm)	≤20	≤21	≤23	≤23	≤26

Precipitated Silica