Incorporation and Processing Instructions. The additive can be incorporated in different ways. Either disperse GARAMITE directly in the millbase or add it. GARAMITE® is a unique rheological additive developed for a wide range of solvent born systems. Compared to fumed silica and organoclays. Rheology additive based on mixed mineral technology for solvent-borne unsaturated polyester, epoxy and vinyl ester resins that provides excellent.
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Originally we used the Garamite only in Part A. The comparison thixotropes need to achieve the correct temperature and dwell time to be activated and work properly, while Garamite does not. The morphology also plays a role in ease of incorporation. Byk invests approximately 7. They also require the proper agitation during cooling in order to prevent the system from forming a false body.
In this case the polyamide had the highest viscosity but did not do gaeamite for the prevention of settling during heat aging Figure 9. This system turned out to be a little more difficult than the previous system, as it took the higher 4 pounds per gallon level of Garamite to eliminate the settling.
But for reactivity and storage stability it should be tested to see if the water in Garamite causes issues in these watersensitive formulations. Does this mean it will work every time? Even though the polyamide yielded the highest viscosity, the Garamite at the lowest level, 2 pounds per gallons, had a settling resistance that matched the higher loading level of polyamide Figure 8. Garamite outperforms fumed silica and significantly outperforms conventional organoclay.
MMT Advantages In practical terms we have found that Garamite tends to build less package viscosity while providing more sag resistance than organoclays.
The information presented here was acquired by UL from the garqmite of the product or material or original information provider.
Also, it may be possible to use these products during manufacture without the ideal conditions, yet still pass QC. This 1598 could reduce the number gxramite thixotropes needed. We also found that the quaternary amine does not play as important a role in determining efficiency garramite a specific solvent system, like with traditional organoclays.
As you move from solvent to diluent to resin the efficiency will drop somewhat. But in the end, Mother Nature tries to return the clay back to its natural state.
Figure 11 evaluates the effectiveness of Garamite compared to organoclay in a PU system. Not only is sag resistance increased, but runs are reduced or eliminated Figure 3. However, this property is not noticed in filled systems. Zinc The next study ggaramite to find the level of Garamite needed to suspend zinc through the use of high-solids pregels. The lowest levels, considered to be traditional organoclays, have to be activated with some type of polar activator.
Unlike organoclays, Garamite is easily incorporated into the coating formulation without using a high level of quaternary amine.
Powdered rheology additive: GARAMITE
In unfilled systems, another shortcoming would be that the MMTs do gara,ite perform quite as well for sag resistance. This can make the other thixotropes much more difficult to deal with in the long run.
While not completely necessary, this will consistently yield the most efficient results. Byk has an established history of innovation such as being the first additive manufacturer to begin using Controlled Polymerization Technology CPTlaunching the first rheology-modified wax emulsion, and being one of the first companies to use nanotechnology for improving Coatings properties.
It is as though the MMT needs to space something to work.
In solvent-containing systems that can tolerate such processing, always add the Garamite to the solvent. However, the Garamite will still in most cases maintain an advantage over other competitive materials. Company Byk has an established history of innovation such as being the first additive manufacturer to begin using Controlled Polymerization Technology CPTlaunching the first rheology-modified wax emulsion, and being one of the first companies to use nanotechnology for improving Coatings properties.
A simple way to look at organoclay is to look at the level and type of quaternary amine modification on the clay. However, UL assumes no responsibility or liability for the accuracy of the information contained on this website and strongly encourages that upon final product or material selection information is validated with the manufacturer. This pregel was both pourable and pumpable Figure This page can be found at http: To totally suspend the zinc it took 1.
This becomes more important as VOC goes down and solids go up.
The Garamite should be added at a percentage high enough to make a pregel that is still pourable. We have shown that Garamite fills this need in many cases as compared to conventional organoclays, polyamides and fumed silicas.
But it does mean MMTs are more flexible as compared to organoclays and have the ability to work in more systems. In recent studies we have seen the Garamite work across a very wide range of solvent systems.
Certain quaternary amines work better in aliphatic vs.
Organoclay Rheological Additive Sg-58 Counter to Garamite 1958
In this study we compared the MMT to a polyamide, both conventional and selfactivating organoclays, as well as a blank. Industrial White Topcoat The next study looked at an industrial white topcoat. While the MMTs have a low bulk density compared to traditional organoclays, it is much higher than fumed silica, which has an extremely low bulk density. It is not unusual for the package viscosity to be lower and the sag resistance to be higher.
In part, we believe this has to do with the difference in having a combination of rods and plates and having more spacing, making it much more difficult for Mother Nature to put the clay back to its gaamite state. How to Use Garamite The use of Garamite is very similar to organoclays.
A Novel Mixed Mineral Thixotrope Technology For Industrial Coatings, Southern Clay Products
Another 1598 of the MMTs is that in most systems polar activators are not necessary. This class of material is used from time to time garamiye boost or enhance the properties of the thixotrope. This leads to issues with dusting and incorporation for the fumed silica as compared to Garamite Figure 5. Byk makes their documentation available in the regions indicated below: This article explains how and why Garamite works. Cowles-type shear will suffice in all applications for dispersing the MMTs.