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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If solvent is not available, then add the Garamite to a reactive diluent or to the lowest-viscosity resin, with the first choice being the diluent. As with the previous study, we compared the MMT to a polyamide, conventional and self-activating organoclays, and a blank. Cowles-type shear will suffice in all applications for dispersing the MMTs.
In recent studies we have seen the Garamite work across a very wide range of solvent systems. You may choose a language below to continue to this industry or close this dialog above.
Properties such as sag resistance and settling resistance become more difficult to balance with package viscosity. 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. Mixed Mineral Thixotropes MMTs are a combination of two different morphologies; one being a plate, the other being a rod. This can make the other thixotropes much more difficult to deal with in the long run.
When comparing MMTs to fumed silica, the big difference is in bulk densities. Conclusions As coating formulations move to lower VOCs and higher solids, the demand on the thixotrope becomes more difficult as it pertains to package viscosity, sag and settling resistance. Originally we used the Garamite only in Part A.
The Garamite should be added at a percentage high enough to make a pregel that is still pourable. 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. This class of material is used from time to time to boost or enhance the properties of the thixotrope. 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.
However, the Garamite will still in most cases maintain an advantage over other competitive materials. This higher level of quaternary amine typically makes them easier to incorporate, but slightly less efficient than traditional organoclays, all other things being equal. One advantage for fumed silica is clarity in the final film.
This flexibility could reduce the number of thixotropes needed. As Figure 6 shows, Garamite is both efficient and stable. Byk invests approximately 7.
But for reactivity and storage stability it should be tested to see if the water in Garamite causes issues in these watersensitive formulations. Another advantage of the MMTs is that in most systems polar activators are not necessary.
Also the type of quaternary amine modification determines which type of solvent system the organoclay will work best in. The morphology also plays a role in ease of incorporation. Keep in mind that the viscosity may be lower, but the sag resistance should be greater.
Rheological Additive Counter to Garamite 1958
Also, it may be possible to use these products during manufacture without the ideal conditions, yet still pass QC. However, this property is not noticed in filled systems. This allows for lower package viscosity, lower cost and increased ease of manufacture. 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.
Placement can be important to both pot life and shelf life and should be tested.
GARAMITE® by Byk – Paint & Coatings
In this study we compared the MMT to a polyamide, both conventional and selfactivating organoclays, as well as a blank. These organoclays usually are more efficient for thickening, but can be more difficult to incorporate, and order of addition can be more critical.
How to Use Garamite The use of Garamite is very similar to organoclays. We also found that the quaternary amine does not play as important a role in determining efficiency in a specific solvent system, like with traditional organoclays.
The trend for higher-solids coatings is to have excessive package viscosity without sufficient sag resistance. This morphology plays a role in not only the ease of incorporation, but also in the efficacy of sag resistance and settling resistance over heat aging. This page can be found at http: This article explains how and why Garamite works.
A simple way to look at organoclay is to look at the level and type of quaternary amine modification on the clay. We will now recommend some starting use levels, keeping in mind that we are talking in generalities, and some systems have different demands than expected.