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Gupotim A -21 is a thermally conductive, electrically insulating aluminum oxide filler.

Functions: Filler

Chemical Family: Aluminum Compounds

Features: Electrically Insulating, Excellent Filling Properties, Good Abrasion Resistance, Thermally Conductive

End Uses: Caps, Film, Hoses

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Chemical Family
Plastics & Elastomers Functions

Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses
Mission

Pastes, gap fillers, potting compounds, foils, films, caps, ceramics, laminates, hoses, adhesives and tapes, compounds, elastomers, thermoplastics, thermosets, resins, ...

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Cilas D 102.0μm
Cilas D 5012.0μm
Cilas D9034.0μm
Oil absorption12 - 15%
Bulk Density (Loose)900-1150g/l
Tamped Density1350 - 1700g/l
Miller number267.0-
pH (10% in H₂O)7.1 - 8.1-
Chemical Analysis
ValueUnitsTest Method / Conditions
Al₂O₃99.8%
N / A₂O0.06%
feet₂O₃0.02%
SiO₂0.04%
Properties

Bi-modal particle size distribution with (local) maxima at 0.5 μm and 15 μm. Low soda (Na20<0.1%). Low abrasiveness (cf. Miller number).