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Microspheres and other filler materials

Fillers2

Microspheres

Phenolic microspheres

These phenolic micro-balls are hollow, reddish-brown hued fillers, in which the particle density is 0,25 g/cm3 and the bulk density is 0,10 g/cm3. The average particle size is 50 µm.

Package sizes: 12 kg, about 2 l

Grey microspheres

These fly ash separated Fillite hollow microspheres are made from aluminum silicate (27-33 % AL2O3; 55-65 % SiO2). They are inert, grey, hollow spheres with a melting point of 1200-1350 C°. The bulk density is 0,30 – 0,45 g/cm3 and the package compactness is 60-65 %. The shell thickness of the ball is, on average, 1/10th of it’s diameter and has a Mohs hardness number of 5.

Package sizes: 20 kg, about 2 l

White microspheres

These white, hollow microspheres (C-glass) are made of silicone oxide (SiO2 53-73 %; dependent on grade), in which the average particle density is 0,20 g/cm3 and the bulk density is 0,10-0,15 g/cm3. The particle size is about 40-80 µm; the melting temperature is 700-850 °C; the Mohs scale hardness scale value is 6-6,5.

Package sizes: 5 kg, about 2 l

 

Other filler agents

Powdered glass fiber

Powdered glass fiber is used for strengthening resins. The white powdered glass fiber is of type E-glass; it’s particle size is 9-14 μm and the bulk density is 2,53-2,55 g/cm3.

Package sizes: 30 kg, 2 l

Plaster

Giluform is a white, simple to use, plaster for making model designs and casting.

Mixing ratio in water: 4 kg : 1 l
Working time: about 6 min
Curing time: about 10 min
Package sizes: 25 kg

Fumed silica

Fumed silica is used to make resins more viscous and thixotropic. It’s composition is SiO2 > 99,8 % and it’s density is 2,2 g/cm3.

Package sizes: 10 kg, 2 l

Cellulose micro-fibers

Cellulose micro-fibers are used to reinforce resins and secure adhesive joints. Produced from wood pulp, these powdered, bleached fibers are 200-300 µm in length, have a bulk density of 0,10 g/cm3, and are able to absorb resins.

Package sizes: 20 kg, 2 l

Talc

M30

Package sizes: 25 kg

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    • Microspheres and other filler materials
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Chem Trends Hexcel EurocarbonUnited FoamMitsubishidiatex tfp

Kevra Oy
Ylästöntie 121 A
01740 Vantaa
General purchasing terms

tel. (09) 612 6820
kevra@kevra.fi

Open mon-fri 9-16

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