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发布时间:2019-08-13 00:00:00
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HB-612

HB-612 is hydrophobic fumed silica which produced by HL-150 after chemical post-treatment with HMDS (Hexamethyldisilazane).
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Product description

Characteristics

HB-612 is hydrophobic fumed silica which produced by HL-150 after chemical post-treatment with HMDS (Hexamethyldisilazane).

 

Applications

RTV silicone sealants,especially electronic potting and Liquid glue

Adhesives and Sealants

Coatings & Printing ink

Powder Coatings

Properties

Thixotropy and reinforcement in RTV silicone sealants, the hydrophobic

feature gives RTV silicone sealants a long shelf-life

Rheological control of RTV silicone rubber

Anti-settling,anti-sagging and thixotropy agent

Free flow aid and anti-caking aid for powders

 

Physical & Chemical Data

Properties Unit Typical Value Testing Method
pH value in 4% dispersion H2OEthanol=1:1 - 5.5~7.5 GB/T 20020
Loss on drying(2 hours at 105℃) % ≤0.7 GB/T 20020
Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃) % ≤2.0 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) % 0.7~1.3 GB/T 20020

 

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