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Polyfill® 203 Alumina Trihydrate is expertly tailored for thermoset plastic and CASE applications demanding high loading levels. This intermediate product empowers compounders to attain maximal loading while maintaining acceptable physical properties. The heightened loading levels facilitated by Polyfill® 203 amplify flame retardancy and smoke suppression, leveraging increased H2O molecule availability.

Chemical Name: Alumina Trihydrate (ATH)

Chemical Family: Aluminum Compounds

Functions: Flame Retardant, Smoke Suppressant

Compatible Polymers & Resins: Epoxies (EP), Polyvinyl Chloride (PVC)

Knowde Enhanced TDS

Identification & Functionality

Chemical Family
CASE Ingredients Functions
Composite Materials Functions
Industrial Additives Functions
Plastics & Elastomers Functions

Features & Benefits

Materials Features

Applications & Uses

Compatible Polymers & Resins
Industrial Additives End Use
Plastics & Elastomers End Uses
Plastics & Elastomers Processing Methods

Properties

Physical Form
Typical Physical Properties
ValueUnitsTest Method / Conditions
Median Particle Size13.0Microns
Particle Size (Retained on 325 Mesh)6.0%
Particle Size (Retained on 200 Mesh)0.4%
Oil Absorption26.0mil/110g
Specific Gravity2.42
Bulk Density (Loose)0.49lb./ft³
Bulk Factor0.0495gal/lb
Free Moisture0.5%
Brightness (L*)98.0
Chemical Properties
ValueUnitsTest Method / Conditions
Aluminum Oxide Content (Al₂O₃)64.9
Silica Content (SiO₂)0.01
Ferric Oxide Content (Fe₂O₃)0.009
Soluble Soda (Na₂O)max. 00.050
Total Soda Contentmax. 0.300
Loss on Ignition (H₂O)34.6
Note

*Performed on HunterLab UltraScan Pro unit.

Regulatory & Compliance

Certifications & Compliance