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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Garamite is significantly easier to incorporate when compared to polyamides and castor derivatives and does not have their temperature and dwell time limitations.
Stability can be lost in different areas, whether it be sag resistance falling off or package viscosity rising substantially. 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.
Certain quaternary amines work better in aliphatic vs. Epoxy Floor Coating Figure 7 highlights the suspension of quartz garamige in an epoxy floor coating. Byk has an established history of innovation such as being the gagamite 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.
The water is adhering to the clay surface and is not automatically available for reaction with the garamit. We have shown that Garamite fills this need in many cases as compared to conventional organoclays, polyamides and fumed silicas. 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 Gramite to put the clay back to its natural state.
As Figure 6 shows, Garamite is both efficient and stable. When comparing Garamite to polyamides or castor derivatives, the MMT is much less sensitive to processing conditions.
Byk makes their documentation available in the regions indicated below: Then somewhere down the road the system may have seeding problems or lose stability. It is 9158 unusual for the package viscosity to be lower and the sag resistance to be higher. graamite
Organoclay Rheological Additive Sg-58 Counter to Garamite 1958
In solvent-containing systems that can tolerate such processing, always add the Garamite to the solvent. Zinc The next study intended to find the level of Garamite needed to suspend zinc through the use of high-solids pregels. The information presented here gatamite acquired by UL from the producer of the product or garamitr or original information provider.
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. While polyamides in particular may be among the best at yielding that perfect buttery feel, they are much less forgiving during manufacture than MMTs.
Powdered rheology additive: GARAMITE
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. These organoclays usually are more efficient for thickening, but can be more difficult to incorporate, and order of addition can be more critical. When working with epoxies do not be afraid to try various combinations between Part A and Part B. Other incorporation methods can also be used.
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. However, this property is not noticed in filled systems. When comparing MMTs to fumed silica, the big difference is in bulk densities.
Garamite Compared to Organoclay There are a variety of organoclays, but for the purpose of this article we will stick to the basics and compare and contrast activated versus self-activating organoclays. Industrial White Topcoat The next study looked at an industrial white topcoat. Garamite has a unique morphology of rods and plates as compared to conventional organoclays that use just a plate-like layered structure Figure 2.
China Rheological Additive Counter to Garamite – China Organoclay, Rheological Additive
This flexibility could reduce garamitee number of thixotropes needed. However, MMT networks use different spacing than do traditional organoclays, due to the different particle shapes involved.
Originally we used the Garamite only in Part A. Not only is sag resistance increased, but runs are reduced or eliminated Figure 3. The comparison thixotropes need to achieve the correct temperature and dwell time to be activated and work properly, while Garamite does not. Organoclays are typically made from smectite and come in a form somewhat like a deck of cards, with clay particles Stacked one upon another.
But for reactivity and storage stability it should be tested to see if the water in Garamite causes issues in these watersensitive formulations.
Also discussed are methods of incorporation and other processing considerations.
As you move from solvent to diluent to resin the efficiency will drop somewhat. While not completely necessary, this will consistently yield the most efficient results. A simple way to look at organoclay is to look at the level and type of quaternary amine modification on the clay.
This pregel was both pourable and pumpable Figure This higher level of quaternary amine typically makes them easier to incorporate, but slightly less efficient than traditional organoclays, all other things being equal. Another advantage of the MMTs is that in most systems polar activators are not necessary.
Garamite outperforms fumed silica and significantly outperforms conventional organoclay. In unfilled systems, another shortcoming would be that the MMTs do not perform quite as well for sag resistance.
It is as though the MMT needs to space something to work. Unlike organoclays, Garamite is easily 1985 into the coating formulation without using a high level of quaternary amine. In this case the polyamide garmite the highest viscosity but did garamute do well for the prevention of settling during heat aging Figure 9. Even though the polyamide yielded the highest viscosity, the Garamite at the lowest gagamite, 2 pounds per gallons, had a settling resistance that matched the higher loading level of polyamide Figure 8.
Having the ability to make pourable high-solids pregels makes it easier garsmite formulate in systems where one has garamlte levels of solvents Figure 4. Byk invests approximately 7. How to Use Garamite The use of Garamite is very similar to organoclays. Are you a distributor who is interested in being listed here? Be sure to test for compatibility and stability. This article explains how and why Garamite works.
While the efficiency was there we discovered that the sag resistance fell off during the pot life. It is also more efficient and easier to handle in manufacturing less dusty, higher bulk density and not sensitive to shear.