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发布时间：2019-08-13 00:00:00

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Hydrophilic Fumed Silica HL-300

HL-300 is hydrophilic fumed silica with a specific surface area around 300㎡ /g， mainly applied in coatings & paintings, silicone rubber and Other elastomers, film & UPR, adhesives and sealants.

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Hydrophilic fumed silica

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Product description

Characteristics

HL-300 is hydrophilic fumed silica with a specific surface area around 300㎡/g.

Applications

Coatings & Paintings

Silicone rubber and Other elastomers

Film & UPR

Adhesives and Sealants

Printing ink

Properties

Reinforcing filler in elastomers

Anti-settling, thickening and anti-sagging agent

Rheology and thixotropy control in liquid systems

Free flow aid and anti-caking aid for powders

High tear resistance

Excellent transparency in unsaturated polyester resins

Physical & Chemical Data

Properties	Unit	Typical Value	Testing Method
Specific Surface Area（BET）	m2/g	300±25	GB/T 20020
pH value in 4% dispersion	-	3.7～4.5	GB/T 20020
Loss on drying(2 hours at 105℃)	%	≤2.0	GB/T 20020
Loss on ignition(2 hours at 1000℃ based on material dried for 2 hours at 105℃)	%	≤2.5	GB/T 20020
Sieve Residue(45μm)	mg/kg	≤250	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

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