Rheological agents
Mineral products
In addition to various organic products available on the market, different mineral products can also be used as rheological agents. Along with the expected functionality from polar to non-polar systems, these products also display different advantages.
Advanteages to you:
- Usable in a very broad range of temperatures
- Compatible with high and low pH value ranges
- Partial insensitivity to high electrolyte concentrations
- No increase to the organic portion
Other additives
The following products are particularly suitable for use in paints and varnishes, adhesives and in construction applications:
- Defoaming/deaerating agents
- Silicone-free defoaming agents
- Silicone defoaming agents
- Hydrophobing agents
Silicates
| Designation | Properties | Functionalities |
|---|---|---|
| Sepiolites | Acicular, non-swelling | Rheological additives, for polar systems, high structural viscosity, formation of chain-like particulate networks, more effective than attapulgite, increased resistance to cleaners and abrasives, reduced tendency to adhere in grouts and mortars, improved flow, reduced sedimentation tendency, usable in pH range from 3-14, minimal sensitivity to electrolytes, require high shear forces to disperse |
| Organo-sepiolites | Acicular, non-swelling | Rheological additives for non-polar to medium-polar systems; high structural viscosity; formation of particulate networks, more effective than attapulgite, increased resistance to cleaners and abrasives, reduced tendency to adhere in grouts and mortars, improved flow, reduced sedimentation tendency, usable in pH range from 3-14, minimal sensitivity to electrolytes, require high shear forces to disperse |
| Attapulgites | Acicular, non-swelling | Rheological additives for polar systems, high structural viscosity, formation of chain-like particle networks, not as effective as sepiolite, increased resistance to cleaners and abrasives, reduced tendency to stick in grouts and mortars, improved flow, reduced sedimentation tendency, usable in pH range from 3-14, minimal sensitivity to electrolytes, require medium shear forces to disperse, cost-effective |
| Bentonites | Lamellar, main component montmorillonite, swellable | high structural viscosity, good to excellent thickening effect, massive water absorption with simultaneous swelling, sensitive to electrolytes, reduced tendency to stick in grouts and mortars, improved flow, massive reduction of sedimentation tendency, for aqueous and highly polar systems only, easily dispersed, cost-effective |
| Organo-bentonites | Lamellar, main component montmorillonite, swellable | high structural viscosity, good to excellent thickening effect, massive water absorption with simultaneous swelling, sensitive to electrolytes, reduced tendency to stick in grouts and mortars, improved flow, massive reduction of sedimentation tendency, depending on surface treatment for non-polar or for medium to highly polar systems, activation may be necessary in certain circumstances. |
Other Additives
| Product group | Designation | Functionality |
|---|---|---|
| Silicone defoaming agents | B 10 (emulsion), B 20 (emulsion), B 100 (compound) and B 125 (emulsion) | Efficient defoaming and deaerating effect, suitable for systems with high and low pigment volume concentration, high-gloss and matte, high functionality and compatibility with water-based paints and varnishes, VOC-free. |
| Silicone-free defoaming agents | WS 935, WS 938, WS 939, WS 941, WS 960, WS 961, WS 974, WS 980, WS 981 and WS 982 (all compounds, dispersible), WS 351, WS 356 and WS 360 (emulsions) | Defoaming agents with very high functionality in formulations for architectural coatings, VOC-free, high stability and excellent effect. |
| Hydrophobing agents | Esasil 100 (compound), Esasil 200 (emulsion) and Esasil 300P (powder) | Strong water-repelling effect (lotus effect) for functional use in construction materials such as façades, stonework, brick, mortar and cement. |
| Anti-Skinning agent | Apri-Skin 623 | Apri-Skin 623 (2-Petanonoxime) is a highly effective skin preventative for oxidative drying coatings and inks, providing a safe and proven alternative to MEKO. It is designed to optimize the performance of alkyd-based coating systems by preventing the formation of a surface skin when the product comes into contact with atmospheric oxygen. This in turn improves paint performance and reduces waste. |
Service & Support
Contact
BASSERMANN minerals
Holger Breetzke
Department Manager Binders & Additives