NSE

Neuburg Siliceous Earth

Neuburg Siliceous Earth is a natural combination of corpuscular Neuburg silica and lamellar kaolinite: a loose mixture impossible to separate by physical methods. As a result of natural aging, the silica portion exhibits a round grain shape and consists of aggregated primary particles about 200 nm diameter. Such a unique structure is responsible for a relatively high specific surface area and oil absorption, which results in a whole range of application properties.

Standard NSE

Sillitin V85 –

Coarse particle size and yellowish tinge

Sillitin V88 –

As Sillitin V85, but with higher colour neutrality

Sillitin N75 –

Medium particle size with high yellowish tinge

Sillitin N85 –

As Sillitin N82, but with higher colour neutrality

Sillitin Z86 –

Fine particle size and good colour neutrality

Sillitin Z89 –

As Sillitin Z86, but with higher colour neutrality

Sillikoloid P87 –

Finest particle size with good colour neutrality

NSE for improved dispersion

Sillitin N85 Puriss –

As Sillitin N82, but with higher colour neutrality

Sillitin Z86 Puriss –

Fine particle size and good colour neutrality

Sillitin Z89 Puriss –

As Sillitin Z86, but with higher colour neutrality

Sillikoloid P87 Puriss–

Finest particle size with good colour neutrality

Surface treated NSE

Aktisil AM –

Amino functionalised based on Sillitin Z86

Aktisil MAM –

Methacrylic functionalised based on Sillitin V88

Aktisil MAM-R –

Methacrylic functionalised based on Sillitin V85

Aktisil MM –

Mercapto functionalised based on Sillitin Z86

Aktisil PF216 –

Tetrasulfane functionalised based on Sillitin Z86

Aktisil PF777 –

Alkyl functionalised based on Sillitin Z86

Aktisil Q –

Methacrylic functionalised based on Sillitin V90

Aktisil VM56 –

Vinyl functionalised based on Sillitin Z86

Aktisil VM56/89 –

Vinyl functionalised based on Sillitin Z89

Calcined surface treated NSE

Aktifit AM –

Calcined product, amino functionalised

Aktifit PF111 –

Calcined product, alkyl functionalised

Aktifit PF115 –

Calcined product, amino functionalised

Aktifit Q –

Calcined product, methacrylic functionalised

Aktifit VM –

Calcined product, vinyl functionalised

Features and Benefits

Neuburg Siliceous Earth —Is a mineral which is easily and rapidly mixed into all formulations. The dispersion profile results in short mixing times, no agglomerates, good rheological properties and good pigment/additive dispersion. High degree of filling low compound costs.

Excellent surface visually perfect articles, few rejects. Low tension and compression set excellent sealing properties. High electrical resistivity insulation with low loss.

Favourable aging properties long service life, cost reduction through low need for anti-aging agents. Superior chemical resistance high resistance against aggressive media.

A high level of purity means that it can be used in pharmaceutical articles and food contact materials.

Calcined NSE — This offers a lower moisture absorption, and therefore a lower risk of blistering for pressure-less vulcanisation. It also has the lowest chloride content in the range.

This is a high white product, and as such there is less of a need for white pigments like titanium dioxide to aid optimum dispersion,

even in critical compounds, and is comparable with Puriss products short mixing times.

Calcined NSE also provides excellent dispersion characteristics.

Applications

• Elastomers

• Automotive –

Car body seals – Radiator Hoses – HCR Silicone Turbocharger Hoses – Air intake hoses – Gaskets

• Roller Coverings and Blankets

• Silicone rubber compounds

• Coatings and reactive resins

• Primer surfacer

• Corrosion Protective coatings

• Pipeline Coatings

• Epoxy Resin flooring systems

• 2K PU coatings, sealant and adhesives

• Electrophoretic Coatings

• Coil Coatings

• UV cure coating for wood and films

• Solder resistant inks

• Gel Coats

• STP Adhesives.

Industries

Elastomers

When used in elastomers NSE typically offer good extrusion, calendaring properties with high haul-off speeds. For high quality extrusion articles good surface quality is observed. NSE has no negative influence on cure rate, good thermal conductivity short vulcanisation time.

NSE Avoids mould fouling/deposits on dies caused by traditional platy fillers, resulting in high productivity and low costs thanks to reduction of stoppages for cleaning and prevention of waste. This can be further improved with Silfit and Aktifit ranges.

Very fine cell structure in sponge and microcellular rubber high quality sponge and expanded rubber products. The potential for improved oil resistance combined with the very low compression set for meeting high demands for sealing compounds.

In Silicone Rubber the product reduces stickiness, offer impressive compression set and eliminates bloom without post curing. It also can help reduce ATH loading in flame retardant applications while reducing smoke production and dropping LOI.

Coatings

Easy and rapid incorporation, excellent dispersion properties (especially Puriss products), very low sedimentation with no hard sediment formation. Good rheological properties (shear thinning, thixotropic). Matting effect, very fast drying, good intercoat adhesion, water vapour permeability. Good pigment dispersion (spacer effect) improving dispersion of other ingredients. Good edge covering, easy and rapid sanding, excellent stone-chipping resistance, good mechanical properties, good corrosion protection. It’s easier to work with and reducing production issues. Calcined kaolin can be used as an electrical insulation additive in rubber. It provides low conductivity, making it suitable for applications where electrical insulation is required.

Life Science

NSE is used in cosmetics and soap for its gentle cleansing and exfoliating properties. NSE is a natural resource that has been used for years in the beauty industry as an ingredient in many beauty products. NSE is gentle on the skin and is an excellent alternative to artificial scrubs and abrasives.

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