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Hydrophobic Fumed Silica HB-615

HB-615 is hydrophobic fumed silica which is produced by HL-150 after chemical post-treatment with HMDS (Hexamethyldisilazane).
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Product description
Parameters

Characteristics

HB-615 is hydrophobic fumed silica which is produced by HL-150 after chemical post-treatment with HMDS (Hexamethyldisilazane).

 

Applications

Elastomers, HTV&RTV silicone rubber, SLR

Coatings & Printing ink

Adhesives and Sealants

Negative Toners

Powder Coatings

Properties

Reinforcing filler for elastomer

High hydrophobicity and stable thixotropy

Anti-settling,anti-sagging, anti-thixotrophy in coating and ink

Improving the homogeneity and stability of pigment

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) - 5.5~7.5 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) % 1.0~1.7 GB/T 20020

 

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ABOUT US

 

Hubei Huifu Nanomaterial Co.,Ltd. is an National High-tech Enterprise specialized in fumed silica, a nano powder material. 

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