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HL-150
HL-150 is hydrophilic fumed silica with a specific surface area around 150㎡ /g, mainly is applied in HTV and RTV Silicone rubber, adhesives and sealants, coatings and paintings
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HL-200
HL-200 HL-200 is hydrophilic fumed silica with a specific surface area around 200㎡ /g, mainly applied in coatings & paintings, film & UPR, HTV&RTV silicon rubber, adhesives and sealants, printing ink...
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In Unsaturated Polyester Resin
In UPR products, fume silica gives high transparency and good physical properties even at a low concentration. This improves quality of its down-stream product.
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In Silicon Rubber
Silicon rubber is ageing-resistant, high and low temperature resistant and electricity-insulated. However, the molecular chain of silicon rubber is soft, the interaction force is weak, so silicon rubber needs to be reinforced before actual usage.
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In Gel Battery
Fumed silica is a white tasteless ultrafine powder material, with thickening, anti-caking, control system rheology and thixotropic effects, in addition to the traditional application, in recent years in colloidal batteries have been widely Applications.
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Group Standard - Determination of Silanol Content on the Surface of Fumed Silica is released
The group standard,  Determination of Silanol Content on the Surface of Fumed Silica (T/FSI 490-2020), is officially released on 30th April,2020 and will be implemented on 30th May, 2020. This standard is set by Guangzhou Huifu Reaserch Institute Co., Ltd., which is a wholly-owned subsidiary of Yichang Huifu Silicon Material Co., Ltd.
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The Medical Properties of Fumed Silica
Fumed silica has great potential in medical application due to its special properties.It can be added into external pharmaceuticals to treat inflammation, eczema, allergic dermatitis, it can also be used as inner adsorbents to treat pancreatitis, intestinal infection,pleurisy,cellulitis, hepatitis, gynecologic inflammation and to decrease side effect in tumour chemotherapy.
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Thickening & Thixotropic Properties of Fumed Silica
Wemaygetconfusedanddonotknowhowtochoosewhenwepickcoatingsforhomedecoration.Thenthesalesmayrecommendabrandwhichiseasytopaintandmakeswalllookedflat,brightandscratch-resistant.Whycoatingshassuchmagicperf
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Yichang Huifu Silicon Material Co, ltd. is an National High-tech Enterprise specialized in fumed silica, a nano powder material. 

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Applications
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In UPR products, fume silica gives high transparency and good physical properties even at a low concentration. This improves quality of its down-stream product.
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Grade Recommendation: HL-150 / HL-300 / HB-151 / HB-152
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Grade Recommendation: HL-150 / HL-200 / HB-151 / HB-152
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For tires, fumed silica can significantly improve the physical and mechanical properties of the rubber compound, decrease rolling resistance, and improve safety performance in raining weather.
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Silicon rubber is ageing-resistant, high and low temperature resistant and electricity-insulated. However, the molecular chain of silicon rubber is soft, the interaction force is weak, so silicon rubber needs to be reinforced before actual usage.
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Grade Recommendation: HL-200 / HB-615 / HB-151/ HB-152
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Grade Recommendation: HL-150 / HL-300 / HB-151 / HB-152
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Grade Recommendation: HL-300 / HL-380 / HB-151 / HB-152
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Product series
HL-150 is hydrophilic fumed silica with a specific surface area around 150㎡ /g, mainly is applied in HTV and RTV Silicone rubber, adhesives and sealants, coatings and paintings
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HL-200 HL-200 is hydrophilic fumed silica with a specific surface area around 200㎡ /g, mainly applied in coatings & paintings, film & UPR, HTV&RTV silicon rubber, adhesives and sealants, printing ink...
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HB-132 is hydrophobic fumed silica which is produced by HL-200 after chemical post-treatment with HMDS (Hexamethyldisilazane).
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HB-135 is hydrophobic fumed silica which is produced by HL-380 after chemical post-treatment with HMDS (Hexamethyldisilazane).
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HB-139 is hydrophobic fumed silica which is produced by HL-200 after chemical post-treatment with PMDS (Polydimethylsiloxane).
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HB-151 is hydrophobic fumed silica which is produced by HL-150 after chemical post-treatment with DDS(Dimethyldichlorosilane).
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HB-152 is hydrophobic fumed silica which is produced by HL-200 after chemical post-treatment with DDS ( Dimethyldichlorosilane ).
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HB-612 is hydrophobic fumed silica which produced by HL-150 after chemical post-treatment with HMDS (Hexamethyldisilazane).
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HB-615 is hydrophobic fumed silica which is produced by HL-150 after chemical post-treatment with HMDS (Hexamethyldisilazane).
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