Filler (materials)

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Particles added to material (plastics, Composite material, Concrete) to lower the consumption of more expensive binder material or to better some properties of the mixured material.

[edit] Table of common filler-binder materials

Material	Binder	Filler	Importance of filler
Concrete	cement	gravel, stone , sand	cheaper
Drywall	gypsum	cardboard	tenacity, volume, main part
Particle board	Synthetic Resin, glue	sawdust	tenacity, volume, main part
Plastic explosive	Plasticizer, oil	explosive	explosiveness
Tyre rubber	rubber	Soot	Volume, better mechanic properties
Resin epoxy	epoxy	Microspheres	Improve viscosity of resin