GS-202 is a hydrophobic fumed silica treated with polydimethylsiloxane, based on hydrophilic silica with a specific surface area of 200. It is suitable for resin adhesives, finishing agents, inks, and other complex rheological systems.
Item No :
28112200Order(MOQ) :
2TonPayment :
T/TProduct Origin :
CHINAColor :
WHITEShipping Port :
Shanghai/Ningbo/QingdaoLead Time :
45 DaysWeight :
10KG/BAGsize :
10KGCharacteristics
GS-202 is a specialized hydrophobic fumed silica that has been surface-treated with polydimethylsiloxane (PDMS). It is derived from a hydrophilic silica base with a specific surface area of 200 m²/g, a key characteristic that contributes significantly to its performance. This treatment process fundamentally alters the silica's properties, transforming it from water-absorbing to water-repelling, which makes it exceptionally effective in controlling rheology in non-aqueous systems.
This versatile material is particularly suitable for enhancing the performance of resin adhesives, industrial finishing agents, and high-quality printing inks. In these and other complex rheological systems, GS-202 acts as a highly efficient thickener and anti-settling agent. It provides excellent sag resistance, prevents pigment settling, and ensures optimal viscosity stability, thereby improving both the application properties and the final quality of the end products. Its robust performance makes it an indispensable additive for formulators seeking to achieve precise rheological control.
Technical Data Sheet
| UNIT | VALUE | |
| Specific Surface Area | ㎡/g | 110±20 |
| pH | 5.0-7.0 | |
| Drying Loss(2hr. at 105°C) | wt.% | ≤1.5 |
| Ignition Loss(2hr. at 1000°C) | wt.% | 4.0-7.0 |
| Tapped Density | g/dm³ | 45-60 |
| 45μm Sieve Residue Mass Fraction | mg/kg | ≤400 |
| Silicon dioxide mass fraction | wt.% | ≥99.8 |
| Carbon Content | wt.% | 5.0-6.0 |
| Methane Value (M Value) | vol.% | 58-68 |
| Unit Packaging (Net Weight) | kg | 10/180 |
Properties:
1. When applied in grout sealants, it exhibits outstanding thickening and thixotropic properties. In epoxy colored sand, it demonstrates excellent anti-settling and aging resistance.
2. In complex polar systems such as epoxy resins, polyurethanes, and vinyl resins, it also delivers outstanding thickening, reinforcing, and thixotropic properties.
3. In high-strength adhesives, it provides excellent reinforcing performance.
4. In high-density or highly filled ink and coating systems, it offers superior anti-settling and anti-sagging functionality.
Application
Recommended
SK-200S is a hydrophobic fumed silica obtained by treating hydrophilic fumed silica with a specific surface area of 200 m²/g with hexamethyldisilazane (HMDS). It is particularly suitable for powder materials, oil-based systems, and medium- to high-polarity systems.
Read More
GS-380S is a hydrophobic fumed silica derived from hydrophilic fumed silica with a specific surface area of 380, treated with hexamethyldisilazane. It is suitable for powder materials, defoamers, and medium- to highly polar systems.
Read More
GS-272 is a hydrophobic fumed silica derived from hydrophilic fumed silica with a specific surface area of 150, treated with dimethyldichlorosilane. It is more suitable for applications such as coatings and inks.
Read More
GS-274 is a hydrophobic fumed silica derived from hydrophilic fumed silica with a specific surface area of 200, treated with dimethyldichlorosilane. It is more suitable for applications such as coatings and inks.
Read More
GS-200T is a hydrophobic fumed silica based on hydrophilic silica with a specific surface area of 200, treated with special silicone oil and structurally modified. It is suitable for anti-settling in coatings and inks, thickening in resins and adhesives, and reinforcing in silicone materials.
Read More
GS-202 is a hydrophobic fumed silica treated with polydimethylsiloxane, based on hydrophilic silica with a specific surface area of 200. It is suitable for resin adhesives, finishing agents, inks, and other complex rheological systems.
Read More
GS-204 is a hydrophobic fumed silica based on hydrophilic silica with a specific surface area of 200, subjected to deep surface treatment with polydimethylsiloxane and specially modified for enhanced spatial structure. Its outstanding feature lies in its excellent dispersibility, achieving superior dispersion even under low shear conditions, making it particularly suitable for particle-sensitive application systems.
Read More
IPv6 network supported