China Best Fumed Silica EC R272 in Printing Inks Supplier

Fumed Silica EC R272 in Printing Inks

EC R272 is a kind of hydrophobic fumed silica, treated with DDS (Dimethyldichlorosilane). It's high purity white colloidal powder.

Item NO.:
EC R272
EINECS No:
238-878-4
CAS No.:
10279-57-9
Chemical Formula:
SiO2

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Fumed Silica EC R272 in Printing Inks

Physical Properties

EC R272 is hydrophilic fumed silica with a specific surface area of 300m2/g. It is a kind of high purity white colloidal powder.

Properties

• Used as thickening, thixotropic, reinforcement in RTV silicone rubber

• Rheology control of adhesive

• Used as anti-settling, thickening, anti-sagging agent in coatings, inks

• Improvement of free flow and anti-caking characteristics of powders

Specifications

Properties	Target Values (Spec Limits)
Appearance	White Powder
BET specific surface area m2/g	90-130
Heating Loss at 105 °C 2h wt.% Max	0.5
Igniting Loss wt.% (2h at 1000 °C, based on materials dried for 2h at 105 °C) Max	2.0
pH Value in 4% dispersion	3.8-5.0
SiO2 (based on ignited material) % Min	99.8
Tamped density (based on material dried for 2h at 105 °C g/L	40-60
Carbon conten (based on material dried for 2h at 105 °C wt.% Max	0.6-1.2

Application

• HTV and RTV silicone rubber

• Adhesives and sealants

• Paints, coatings and pigments

• Printing inks

• Cable compounds and gels

Fumed Silica EC R272 in Printing Inks

1. Package: 10kg/PE bag

2. Storage: Kept in a low temperature, dry and ventilated place, avoid direct sunlight.

3. Shelf life: One year in ventilating, cool and dry area.

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