Additive

AEROSIL® R 812

Name: AEROSIL® R 812 - Sample
Brand: Evonik
Availability: InStock

AEROSIL® R 812 is a fumed silica after-treated with organosilane (HMDS) with high specific surface and marked hydrophobia.

PNG

Product information

Effects

Powder Fluidization

Rheology Control

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Type

Additive

Sub type

Rheology control

Sustainability

Contains no biocide

Life Cycle Assessment available

Markets

Technologies

High solids (solventborne)

Powder

Solventborne

Solventfree

Waterborne

Manufacturer

Availability

Country

Check the substance migration limit for your formulation.

Key benefits

highly recommended for 2K PU
high transparency therefore especially recommended for automotive clear coats
highly efficient

Technical data

Property	Value
carbon content	2.0 - 3.0 %
loss on drying	<0.5 %
pH-value	5.5 - 8.0
SiO₂ content	>99.8 %
specific surface area (BET)	230 - 290 m²/g
tamped density	Approx 60 g/l

carbon content

2.0 - 3.0 %

loss on drying

<0.5 %

pH-value

5.5 - 8.0

SiO₂ content

>99.8 %

specific surface area (BET)

230 - 290 m²/g

tamped density

Approx 60 g/l

Properties

Anti-settling

4/5

Anti-sagging

4/5

Corrosion resistance

5/5

Recommended addition level

As supplied calculated on total formulation: 1.0 - 2.0 %.

Processing instructions

Addition to the coating as supplied or as a predilution is possible.

Handling & storage

When stored in an original unopened packaging, the product has a shelf life of 24 months from the date of manufacture. We recommend to store the product in closed containers under dry conditions and to protect the material from volatile substances.