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Hydrophobic Fumed Silica HB-630
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Product serial number
Category
Hydrophobic fumed silica
Quantity
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+
Stock:
1
Product description
Characteristics
HB-630 is hydrophobic fumed silica which is produced by HL-380 after chemical post-treatment with HMDS (Hexamethyldisilazane).
Applications
Elastomers, HTV silicone rubber and LSR
Coatings & printings ink
Defoamer
Carbon Powder for Printer
Properties
High reinforcement and transparency in HTV and LSR
High hydrophobicity and stable thixotropy
Anti-settling and anti-sagging agent in coatings and printing ink
High anti-foam property
Free flow aid and anti-caking aid for powders
Physical & Chemical Data
| Properties | Unit | Typical Value | Testing Method |
| pH value in 4% dispersion（H2O：Ethanol=1:1） | - | 5.5～8.0 | GB/T 20020 |
| Loss on drying(2 hours at 105℃) | % | ≤0.5 | GB/T 20020 |
| Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃) | % | ≤4.0 | GB/T 20020 |
| Silica Content(Based on ignited material) | % | ≥99.8 | GB/T 20020 |
| Tamped Density（Based on material dried at 105℃ for 2 hours） | g/dm³ | 40～60 | GB/T 20020 |
| Carbon Content (Based on material dried at 105℃ for 2 hours) | % | 2.5～4.0 | GB/T 20020 |
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Time of issue:2019-08-14 00:00:00
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