AEROSIL® R 208 Silica

AEROSIL® R 208 is a fumed silica after-treated with polydimethylsiloxane.

Principal: Evonik Corporation Silicas

Functions: Reinforcement Agent, Rheology Modifier

Chemical Family: Silicones

End Uses: 1K (1 component) Coating, 2K (2 component) Coating, Solventborne Coating, Toner

Compatible Polymers & Resins: Epoxies (EP)

Labeling Claims: Not Listed In California Proposition 65, Odor-free

Physical Form: Powder

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Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Chemical Name
Function
Reinforcement Agent, Rheology Modifier
Product Code
MITM04245
Single Ingredient
Yes
Synonyms
Dimethyl Silicone Polymer With Silica
Technologies
Product Families

Features & Benefits

Applications & Uses

Coating End Applications
Compatible Polymers & Resins
Ink & Toner End Applications
Markets
Applications
Product Applications

Water-based rust preventatives

Additin®® RC 4955 is a rust preventative package that is designed to be dissolved in mineral oil (grp I or grp II; but also PAO or GTL might be used) and then emulsified with water. The mixture prepared with Additin®® RC 4955 has excellent emulsion stability properties and result in outstanding performance in salt spray test and humidity cabinet. The resulting
protective film is oily with excellent edge protection.

Mixing Instructions
For easier and better emulsion formation it is recommended to heat up the oil phase and the water to about 60 - 65°C. To get a good drying performance parts should be dipped directly into the heated emulsion. When the emulsion cools down it results into a thicker emulsion which means thicker films, and therefore, better performance. If emulsions are used for longer periods (1-2 weeks) the use of a biocide should be taken into consideration.

Processing Information

Addition tothecoating as suppliedor as a predilution ispossible.

Properties

Physical Form

Regulatory & Compliance

Packaging & Availability

Packaging Type
Product Packaging

The product is supplied in multiple layer 10kg paper bags.

Storage & Handling

Storage Conditions

We recommend to store the product in closed containers under dry conditions and to protect the material from volatile substances. The product should be used within 2 years after production.

Other

Apparent Tamped Density
60.0 g/L
Autoignition Temperature (SDS)
752.0 °F
Carbon Content
4.5-6.0 %
Color (SDS)
White
Decomposition Temperature (SDS)
min. 572.0 °F
Density (SDS)
2.0 g/cm³
Dosage (Use Level)
1.0-2.0 %
Dust Explosion Class (SDS)
ST-1
Item Number
Lower Explosive Limit (SDS)
500.0 g/m³
Minimum Explosible Concentration (SDS)
500.0 g/m³
Minimum Ignition Energy (SDS)
1.0-10.0 kJ
Moisture Content
max. 0.5 %
Odor (SDS)
Odorless
Principal
Shelf Life
2.0 yr
Silicon Content
min. 99.8 %
Solubility In Water (SDS)
min. 1.0 mg/L
Specific Surface Area
80.0-140.0 m²/g
pH
4.5-6.0
pH (SDS)
4.5-6.5
Chemical Properties
ValueUnitsTest Method / Conditions
pH4.5-6.0-
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life2.0 yryr
Physical Properties
ValueUnitsTest Method / Conditions
Apparent Tamped Density60.0 g/Lg/L
Moisture Contentmax. 0.5 %%
Specific Surface Area80.0-140.0 m²/gm²/gBrunauer-Emmett-Teller (BET)
Material Composition
ValueUnitsTest Method / Conditions
Carbon Content4.5-6.0 %%
Silicon Contentmin. 99.8 %%as silicon dioxide
Application Information
ValueUnitsTest Method / Conditions
Dosage (Use Level)1.0-2.0 %%
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Autoignition Temperature (SDS)752.0 °F°FVDI 2263
Decomposition Temperature (SDS)min. 572.0 °F°F
Density (SDS)2.0 g/cm³g/cm³at 68°F
Lower Explosive Limit (SDS)500.0 g/m³g/m³VDI 2263
Minimum Explosible Concentration (SDS)500.0 g/m³g/m³VDI 2263 1 m³ standard container
Minimum Ignition Energy (SDS)1.0-10.0 kJkJVDI 2263 1 m³ standard container
Solubility In Water (SDS)min. 1.0 mg/Lmg/L
pH (SDS)4.5-6.5-at 68°F