Hydrophilic Silica

SIPERNAT^® 22

A silica, that combines a high absorption capacity together with a good flowability. It is our basic recommendation as a carrier silica for converting any kind of liquid into free flowing powders.

Examples can be drawn from the feed industry. Here, SIPERNAT^® 22 is used as carrier silica for choline chloride solutions, vitamin E acetate and other liquid active substances. In plant protection formulations, this silica is used as a grinding aid for low-melting active substances and, in case of further grinding, as a carrier for liquids.

SIPERNAT^® 22 LS

As a finely ground silica with a high absorption capacity for liquids, SIPERNAT^® 22 LS is very often used as a thickener for liquid systems, e.g. adjustment of the thixotropy/viscosity of unsaturated polyester gel coats. In fine powders it reduces caking and improves flowability.

SIPERNAT^® 22 S

A silica with a high absorption capacity used as a flow and anticaking agent in many applications as well as a special-purpose ingredient for mechanical graphics papers. In plant protection, this product is recommended as a carrier in solid formulations such as wettable powders (WP) and water-dispersible granules (WG) if grinding is to be avoided.

SIPERNAT^® 25*

This highly pure fine particle sized Silca is used as a flow aid and anticaking agent for powdered food ingredients. It meets the requirements of JSSFA (Japan’s Specifications and Standards for Food Additives).

SIPERNAT^® 33

A silica with spherical particles, low fines content and very high oil absorbtion (DBP). SIPERNAT^® 33 combines very high absorption capacity for liquids with high bulk density and very good flow properties.

Typical applications include:

• Carrier for rubber additives, for example, melamine resins
• Carrier for plastics additives
• Carrier for resins, for example, powder coatings
• Carrier for powder defoamers

SIPERNAT^® 35*

Is a very finely milled, hydrophilic, slightly alkaline silica. It is particularly well suited for the production of in-situ hydrophobization process and produces a homogeneous result. It is not necessary to add any other catalyst.

SIPERNAT^® 50

As a carrier silica with particularly high absorbency it has the capacity to convert liquid active substances, or solutions into powders. Concentrates of up to 75 percent can be produced using SIPERNAT^® 50. It is also used as a grinding aid for fatty products.

Typical applications include:

• rubber and plastics additives
• plant protection formulations
• feed additives

SIPERNAT^® 50 S

Silica with particularly high absorption capacity enhances flowability and prolongs the shelf life of powdered substances which are liable to caking, especially those with a high fat content. It also acts as a high absorbency carrier in case particle fineness is needed in addition to high concentration, e.g. in plant protection formulations as WP and WG.

SIPERNAT^® 101 M

As a very finely ground silica with medium surface area, moderate absorption capacity and high chemical purity, it helps to improve dot definition in thermal paper applications.

SIPERNAT^® 120

This is a silica with medium particle size and moderate absorption capacity. It benefits as a carrier for special applications and as reinforcing filler in HTV, LSR and RTV-2C silicone rubber applications, where it enhances mechanical strength and stabilizes viscosity.

SIPERNAT^® 160

This silica combines high chemical purity, low drying loss and low water absorption. In HTV and LSR silicone rubbers, it provides excellent reinforcing effects (tear resistance) and superior electrical properties. Using an alkaline catalyst for process optimization, this product is suited for the production of in-situ hydrophobized defoamers.

SIPERNAT® 218

SIPERNAT® 218 is a fine milled synthetic silica with relatively neutral pH value, with a low surface area, medium particle size and a very high purity based on selected raw materials. When using SIPERNAT® 218, semi-transparent Silicone Rubber products with good mechanical properties and a low yellowish discoloration can be achieved. 

SIPERNAT® 236

SIPERNAT® 236 is a fine milled synthetic silica with neutral pH value, with relatively high surface area, medium particle size and a very high purity based on selected raw materials. When using SIPERNAT® 236, semi-transparent Silicone Rubber products with excellent mechanical properties and a low yellowish discoloration can be achieved.

SIPERNAT® 268

SIPERNAT® 268 is a fine milled synthetic silica with neutral pH value, with relatively high surface area, medium particle size and a very high purity based on selected raw materials. When using SIPERNAT® 268, semi-transparent Silicone Rubber products with excellent mechanical properties and a very low yellowish discoloration can be achieved.

SIPERNAT® 288

SIPERNAT® 288 is a fine milled synthetic silica with neutral pH value, with relatively high surface area, medium particle size and a very high purity based on selected raw materials. When using SIPERNAT® 288, transparent Silicone Rubber products with excellent mechanical properties and a very low yellowish discoloration can be achieved.

SIPERNAT® 298

SIPERNAT® 298 is a fine milled synthetic silica with neutral pH value, with relatively high surface area, medium particle size and a very high purity based on selected raw materials. When using SIPERNAT® 298, highly transparent Silicone Rubber products with excellent mechanical properties and a very low yellowish discoloration can be achieved.

SIPERNAT® 303*

This grade is a finely ground silica with a high surface area. Due to its high filtration stability, it can be used as a clarifier and adsorbent in liquid, water-based systems, e.g. filtration and stabilization of beer.

SIPERNAT^® 306*

This grade is a silica with an engineered pore size distribution and therefore tailored for, catalyst carrier applications. Due to its particularly high filtration stability, it can be used as a clarifier and adsorbent in liquid, water-based systems, e.g. filtration and stabilization of beer.

SIPERNAT^® 310

As a very finely ground silica with a very high surface area (BET), this grade is used, for instance, as an antiblocking agent in polyolefins and PVC. Increase in color density and enhanced dot definition are benefits of this product applied as coating pigment for inkjet papers. It also can be used as binder or carrier in heterogeneous catalysts.

SIPERNAT® 320

As a silica with a medium particle size and mo derate absorption capacity, it off ers signifi cant advantages in numerous applications: e.g. as a carrier for liquids, fl ow agent for powders, as a grinding aid in plant pro tection formulations and it also provides scratch resistance in PVC fl oorings. Last but not least it may be applied as raw material for high silica zeolites due to its great handling advantages.

SIPERNAT^® 320 DS

A very finely ground silica with good thickening and excellent flow improving properties, which benefits to many different applications, including:

• all types of fine powders (flow improvement)
• defoamers / antifoams (rapid foam destruction after in-situ hydrophobization)
• adhesives (auxiliary ingredient)
• printing / offset inks (prevents misting and setoff, also used as an extender)
• RTV-2C / LSR silicone rubber-applications (viscosity adjustment)

SIPERNAT^® 325 AP*

SIPERNAT^® 325 AP is a coarse milled silica with neutral pHvalue, with medium surface area and high oil absorption (DBP).

SIPERNAT^® 325 C

This grade is a silica with medium particle size, medium absorption capacity and moderate surface area. It is used as a pore generator for PE battery separators.

SIPERNAT® 325 E*

Is a silica with medium particle size, medium absorption capacity and moderate surface area. It is used as a pore generator for PE battery separators.

SIPERNAT^® 340

Is a medium sized silica with spherical particles and high oil absorption capacity (DBP). Is less dusty than small particle size flow agents, yet still gives good free flow improvement performance.

SIPERNAT^® 350

Its very finely ground size, a proper absorbency and an alkaline pH-value constitute an interesting combination of physicochemical properties. One special application is the coating of high-quality heat-sensitive papers. In plant protection, this fine product is recommended as a carrier for acid-sensitive active ingredients in formulations like WP and WG. Furthermore, the small particle size makes it very useful for very thin polymeric films.

SIPERNAT^® 360

This medium particle silica, which has a slightly alkaline pHvalue, is used as a carrier in plant protection where such a pH value is required for acid-sensitive active ingredients.

SIPERNAT^® 383 DS

A very finely ground silica with a slightly alkaline pH-value, which is particularly well suited for the production of in-situ hydrohobized defoamers. Due to an optimum pH-value of about 8 it facilitates for instance the hydrophobization process of defoamers. It is not necessary to add any catalyst.

SIPERNAT^® 500 LS

A very finely ground silica with low drying loss and particularly high absorbency offers many functions to several applications like:

• as an antiblocking agent in polyester
• as an anti-plateout agent in plasticized PVC
• as a highly effective thickener in liquid systems
• as a highly effective flow aid and excellent anticaking agent for fine powders
• as a raw material for insulation systems

SIPERNAT^® 609*

SIPERNAT® 609 is a fine milled synthetic silica with a medium surface area and high absorption capacity. It is preferably used as a thickening, flow improving and anticaking agent. 

As well, this grade is suitable for HTV Silicone Rubber and Liquid Silicone Rubber (LSR) applications.

SIPERNAT® 612*

It is a silica with neutral pH-value and high absorption capacity used as a thickening agent.

SIPERNAT^® 2200

As a micro-granular silica with spherical particles, low fines content and high absorption capacity SIPERNAT^® 2200 is able to convert any kind of liquid into nearly dust-free powders with high bulk density and very good flow properties.

SIPERNAT^® BG-2*

Especially designed to perform as a pore creator in PE battery separators; micropores are essential for ionic migration in automotive batteries; this grade combines an engineered particle size and a high oil absorption capacity at a very low chlorine content.

SIPERNAT^® FPS-5

As an extremely finely ground silica, this grade is designed to adjust thixotropy / viscosity in unsaturated polyester resins (gel coats). Applied in thin films, it generates a proper antiblocking effect. Its high purity makes it an ideal flow aid for food ingredients. In offset printing inks it is a suitable extender. Its matting efficiency makes it useful for water-based printing inks.

* Regionally availability limited