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| Wacker HDK T40 |
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| Fumed silica |
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| 112945-52-5 |
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Wacker HDK T 40 is a hydrophilic fumed silica produced by flame hydrolysis of volatile silcon compounds. Wacker HDK T 40 is pure, X-rayamorphous silicon dioxide (SiO2).
* Thichenign and antisettling agent for formulations of liquid systems requiring a high degree of thixotropy : paints and lacqyers, clear polyester varnishes, and epoxy resins. |
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15-35% (HTVsiliconerubber). 0.3-2.5% (plastisols, organosols), 1-2% (cable), 0.3-5% (paint), 1-10% (inks)
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Surface area, m2/g : 400¡¾40
SiO2-Content, % (Dried for 2 hours at 1000'C): >99.8
Tamped Bulk density, g/l : ca. 40
Moisture, 2 hr/105'C, %,(Material when leaving the plant site) : <1.5
Loss on Ignition, 2 hr/1000'C, %,(Dried for 2 hours at 105'C) : <2.5
pH-Value (4% dispersion in water): 3.6-4.3
Sieve Residue, >40micronm, % : <0.04
HCI-Content, (Dried for 2 hours at 1000'C): <0.02
Al2O3-Content, % (Dried for 2 hours at 1000'C): <0.05
Fe2O3-Content, % (Dried for 2 hours at 1000'C): <0.005
TiO2-Content, % (Dried for 2 hours at 1000'C): <0.003 |
| Industrial field |
additive, paint & coating, plastic, polymer, resin, monomer, rubber & additives |
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