Anorganic reinforcing fillers for industrial applications are an important backbone in modern composite materials. We offer various staple fibres and centrifuged microfibers for different applications.

A staple fibre is produced using an endless sheet (roving) and then cut into the necessary fibre lengths. The roving is spun from the liquefied material. Each of these rovings is made up of several dozen filaments (single fibres), which are then cut into the desired length after cooling.

Centrifuged glass microfibers are sprayed through an extruder head, thus obtaining a clearly finer distribution than conventional fibres. For this reason, the appearance is rather more like wadding than fibre.

HOP-MIX

HOP-MIX 2303-A0 is one of the centrifuged glass microfibers. These fibres draw on a sophisticated process, which liquefies a glass and then sprays it in very delicate fibres. These fibres then exist as casts and can be embedded into a matrix. The chemistry of the glass and the small fibre diameter help to create a transparent end product, even in the highest applied concentrations. The systematic distribution of the very fine fibres offers higher resistances over the entire structure. It is also possible to use it as a cost-effective replacement for pyrogenic silica, as HOP-MIX also has a high absorption capacity with a large surface area.

HOP-BASALT

Basalt fibers consist of naturally occurring rock. The production process is adapted to the characteristics of this very pure raw material. For the chopped fibers, an endless strip (roving) is first produced from the liquid melt of the raw material and then cut into the required fiber length. Each of these rovings consists of several filaments (single fibers), which are standardly coated with a silane finishing.

Closed cell perlite based hollow microspheres TRI-SPHERES^®

Description

TRI-SPHERES^® are hollow multi-cellular microspheres with a popcorn structure on a silicate basis. TRI-SPHERES^® serve as functional lightweight fillers. Their heat resistance is up to 1,500 °C. Their compressive strength ends at 2,900 PSI / 20 Mpa. With a view to any shear forces occurring during the incorporation, their multi-cellular structure avoids that all spheres are destroyed at high forces. TRI-SPHERES^® are marked by a clear bright colour.

Application

TRI-SPHERES^® can be used as lightweight fillers in many different applications such as paints and coatings, foams in composites as well as in hydraulic-setting cement for construction chemistry (TRI-SPHERES^® 120 XL). With a view to the optimisation of acoustic and thermal properties, TRI-SPHERES^® 300 and 400 are recommended. In particular the fine TRI-SPHERES^® 45XS Ultra achieves good results in partial weight reduction of PP polymer for injection mouldingwhen adding 10 – 15 % as an additive for the last step.

Cenospheres OMEGA-SPHERES^®

OMEGA-SPHERES^®, Grey

Description

OMEGA-SPHERES^® are hollow ceramic microspheres > 150 μm which are used as functional lightweight filler is several industries. OMEGA-SPHERES^® are characterised by a high thermal and mechanic resistance and are available in different distribution particle sizes.

Application

Because of their weight-reducing and insulating properties, OMEGA-SPHERES^® are used preferentially in construction chemical products such as adhesives and sealants. They are also used as pore generators in friction and brake linings as well as in grinding and separating tools.

OMEGA-SPHERES^®, White

Description

OMEGA-SPHERES^® W are marked by a particularly high thermal resistance, low iron content and a white colour. They are available in different distribution particle sizes.

Application

Because of their particularly high heat resistance, OMEGA-SPHERES^® W are preferentially used in the refractory and foundry industries. The white colour allows their use in aesthetically demanding applications such as decorative plasters and wall paints.

Cenospheres THERMO-SPHERES^®

THERMO-SPHERES^®, Grey

Description

THERMO-SPHERES^® G are high quality hollow ceramic microspheres < 150 μm, which are characterised by a high degree of fineness as well as a particularly high mechanical strength. The products are pre-dried. Because of the high fineness, they display good grinding properties and are, therefore, highly suitable as insulation and lightweight filling materials.

Application

THERMO-SPHERES^® G are used in applications which require the use of particularly small hollow microspheres or make high demands on surface finish. This includes, apart from the use in paints and coatings, composite materials, special casting compounds and putties, adhesives and sealants.

THERMO-SPHERES^® White

Description

THERMO-SPHERES^® W are white, high quality hollow ceramic microspheres < 150 μm, which are characterised by a high degree of fineness as well as a particularly high mechanical strength. The products are pre-dried and usable for foundry industry. The white colour allows their use in aesthetically demanding applications such as decorative plasters and wall paints.

Application

THERMO-SPHERES^® W are used in bright applications which require the use of the smallest possible microspheres or make high demands on surface quality. This includes applications in addition to the use in paints and coatings, surfaces as well as special casting compounds and adhesives where a high whiteness is advantageous.

LITHO-BUBBLES^®

Description

LITHO-BUBBLES^® are silicate based mineral granules. They are multicellular, open celled foam granulate which has many different uses as lightweight filler.

Application

LITHO-BUBBLES^® are used as lightweight filler in aqueous, solvent-containing and solvent-free systems such as paints and coatings, refractory and foundry products, mould making, grinding agents or construction chemical products.

OMEGA-SIL^®

Description

OMEGA-SIL^® are solid aluminium silicate spheres which have a very high compressive strength. The OMEGA-SIL^® SPECIAL* product range consists of aluminium silicates that are processed in an additional processing step sifted. This particularly sharp separation of the top cut results in aesthetic applications to smoother surfaces.

Application

Due to the lower specific surface the use of OMEGA-SIL^® in paints and coatings allows a higher degree of filling. OMEGA- SIL^® shows in cementitious systems pozzolanic reactivity. The inside microcrystalline structure results in a significant increase of mechanical strength.

OMEGA-BUBBLES^© C – ultra white

OMEGA-BUBBLES^® C are multicellular expanded glass granules. The high whiteness can help to reduce the addition of titanium dioxide in cementitious formulation. For aesthetic applications like acoustic construction or ceilings the ultra-white lightweight fillers meet today's spirit of time. OMEGA-BUBBLES^® C being based on selected recycled glass. Using these products is sustainable and environmentally friendly and can reduces your green CO₂ footprint in later disposal issues.

OMEGA-BUBBLES^® C are available in the grain sizes customary on the market for the construction and insulation industry.

OMEGA-BUBBLES^© D

Description

OMEGA-BUBBLES^® D are multi-cellular, closed cell expanded glass granules which serve as functional lightweight filler. OMEGA-BUBBLES^® D have fire class A1 and a thermal conductivity of 0.07 W/mK. They are resistant to pressure, humidity and acid and are characterised by acoustically insulating properties.

Application

OMEGA-BUBBLES^® D-XS and D-S are used in READY-TO-USE plasters and paints. The types OMEGA-BUBBLES^® D-M to D-XL are preferentially applied in plasters, mortars and other construction chemical products. In adhesives, grinding and friction applications OMEGA-BUBBLES^® D have turned out to be effective spacers and pore-forming agents.

WOLLATROP^® Manufacturer: Lehmann&Voss&Co.

Inorganic thickeners of the WOLLATROP^® series are based on inosilicate technology. This technology has a similar effect to the well-known phyllosilicate thickeners, but behaves very differently in the high shear range. Due to the thread-like structure, alignment in the printing direction is possible, which allows easier processing than comparable phyllosilicates.

Their valued properties in the high shear range as well as their strong thixotropic effect support an excellent product. By combining different types it is possible to create a rheology profile tailored to the needs of the user. With different processes it is possible to significantly influence the thickening effect.