Silicone Rubber Grade Low Iron Precipitated Silica A7791

White powder form,with low iron raw materials. It is high reinforced ultrafine Silica with strict purifying technology specialized use for high temperature vulcanized silicone rubber.

Item NO.:
A7791
EINECS No:
238-878-4
CAS No.:
7631-86-9
Chemical Formula:
SiO2.nH2
Surface BET (m²/g):
150-180
Properties:
Transparency, good reinforcing

Inquiry now

Product Detail
Packaging and Transportation

Silicone Rubber Grade Low Iron Precipitated Silica A7791

Medium Partical Size: 10-14um and BET specific surface area 150-180 m²/g

Chemical Properties

White powder form,with low iron raw materials. It is high reinforced ultrafine Silica with strict purifying technology specialized use for high temperature vulcanized silicone rubber.

It can be dissolved by NaOH,HF Other kinds of acid, water and organic solvents cannot dissolve the product. Resistance to high temperature, no combustion,good insulation, odourless properties.

Specifications

Items	Specification
Appearance	White Powder
BET specific surface area m2/g	150-180
Salt As Na2SO4% Max	0.7
SiO2 % Min	98
Heating Loss at 105°C 2h% Max	4.0-8.0
Ignition Loss at 1000°C % Max	7.0
pH Value (10% aqueous suspension)	6.0-7.0
DBP absorption Value cm³/g	2.0-2.7
Total Fe mg/kg Max	200
Medium Size (D50)µm	10-14

Application

A7791 is used widely for high temperature vulcanized silicone rubber.

A7791 has high transparent, good anti yellowing effect, high hardness effect, and better reinforcement effect.

SiO2, Precipitated Silica, White Carbon, Silicon Dioxide, Conventional Silica Powder, Amorphous Precipitated Silica, Micro pearl precipitated silica

Silicone Rubber Grade Low Iron Precipitated Silica A7791

1. Package: 10 kg/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.

Leave A Message

If you are interested in our products and want to know more details, please leave a message here, we will reply you as soon as we can.

Tags :

Related Products

High Anti Yellowing Silica 800 in Silicone Rubber

White powder precipitated silica by selection of raw materials, with low iron raw materials. It can be dissolved by NaOH, HF. Other kinds of acid, water and organic solvents cannot dissolve the product. Resistance to high temperature, no combustion, good insulation, odourless properties.

Silicone Rubber Grade 779 Precipitated Silica

Resistance to high temperature, no combustion, goodinsulation, odourless properties.

Precipitated Silica for Silicone Rubber

In the silicone rubber industry, Precipitated Silica not only has better tensile strength and wear resistance, but also has good transparency, no whitening and no deformation when stretched.

Mercapto Silane Crosile® 189

Silane Coupling Agent Crosile® 189 is a colorless clear liquid with light typical odor and easily soluble in ethyl alcohol, acetone, benzene, toluene etc. Insoluble in water. 3-Mercaptopropyltrimethoxysilane is a bifunctional organosilane possessing a reactive organic mercapto and a hydrolyzable inorganic methoxysilyl group.

CR 244 Chloroprene Rubber in Chloroprene adhesives

CHLOROPRENE RUBBER is A xanthogen or dodecyl mercaptan modified polychloroprene rubber with fast crystallization rate and high bonding strength at room temperature. The density is 1.23. It is similar to Denka' s A range such as A-90 and Du Pont' s neoprene AD range such as AD-20.

Amino Silane Coupling Agent Crosile® 602 N-[3-(Dimethoxymethylsilyl)propyl]ethylenediamine

Amina Silane Coupling Agent Crosile® 602 N-[3-(Dimethoxymethylsilyl)propyl]ethylenediamine is a colorless or pale yellow transparent liquid, soluble in many common organic solvents such as ethanol, aether, toluene, dimethylbenzene etc. Easily hydrolyzing after damped.

HC 52110 Aliphatic modified Aromatic hydrocarbon Resin

HC 52100 copolymer Resin is a kind of C5 modified with aromatic resin with good compatibility with EVA resin. Low odors (Lowest PAHS), better compatibility with EVA and SIS, SBS. Improve product's initial viscosity and peel strength.

Silane Coupling Agent Crosile189 3-Mercaptopropyltrimethoxysilane in Rubber Industry

Silane Coupling Agent Crosile®189 is 3-Mercaptopropyltrimethoxysilane is a water-white to light straw liquid. It is a mercapto-functional silane that finds use as a coupling agent in polysulfide and polyurethane caulks and sealants.

Categories