GARAMITE 1958 PDF

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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Be sure to test for compatibility and stability. In this case the polyamide had the highest viscosity but did not do well for the prevention of settling during heat aging Figure 9.

Figure 11 evaluates the effectiveness of Garamite compared to organoclay in graamite PU system. Notice the phase separation of the modification made with organoclay.

We have shown that Garamite fills this need in many cases as compared to conventional organoclays, polyamides and fumed silicas. How to Use Garamite The use of Garamite is very similar to organoclays. Always be mindful of the fact the actual rheology of the finished system may not match exactly. Stability can be lost in different areas, whether it be sag resistance falling off or package ggaramite rising substantially.

Not only is sag resistance increased, but runs are reduced or eliminated Figure 3. 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 natural state. How MMTs Work MMTs thicken systems similarly to the way in which organoclays work, using hydrogen bonding to form a three-dimensional network Gsramite 1.

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. Polyurethane Systems Other potential applications include polyurethanes, epoxy adhesives and grouts, unsaturated polyesters, metallic coatings and aerosol coatings.

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. Mixed Mineral Thixotropes MMTs are a combination of two different morphologies; one being a plate, the other being a rod. One advantage for fumed silica is clarity in the final film.

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As Figure 6 shows, Garamite is both efficient and stable. The morphology also plays a role in ease of incorporation.

Organoclays are typically made from smectite and come in a form somewhat like a deck of cards, with clay particles Stacked one upon another.

Including the other mineral type helps to prevent this from occurring. Having the ability to make pourable high-solids pregels makes it easier to formulate in systems where one has low levels of solvents Figure 4. Garamite outperforms fumed silica and significantly outperforms conventional organoclay. But for reactivity and storage stability it should be tested to see if the water in Garamite causes issues in these watersensitive formulations.

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. Also the type of quaternary amine modification determines which type of solvent system the organoclay will work best in. This page can be found at http: Originally we used the Garamite only in Part A.

This allows for lower package viscosity, lower cost and increased ease of manufacture. Industrial White Topcoat The next study looked at an industrial white topcoat.

MMT Advantages In practical terms we have found that Garamite tends to build less package viscosity while providing more sag resistance than organoclays. 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.

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Garamite has a unique morphology of rods and plates as compared to conventional organoclays that use just a plate-like layered structure Figure 2.

Cowles-type shear will suffice in all applications for dispersing the MMTs. Other incorporation methods can also be used. We then realized that by splitting the Garamite Properties such as sag resistance and settling resistance become more difficult to balance with package viscosity.

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This is also the first time in this article we use a rheological enhancer, the BYK R These organoclays usually are more efficient for thickening, but can be more difficult to incorporate, and order of addition can be more critical. Another advantage of the MMTs gzramite that in most systems polar activators are not necessary.

As regulations call for lower VOC levels, it becomes increasingly difficult to design coatings with appropriate rheology. Garamite has a unique morphology of rods and plates as compared to conventional organoclays that use just a plate-like layered structure.

GARAMITE┬« by Byk – Paint & Coatings

In recent studies we have seen the Garamite work across a very wide range of solvent systems. In unfilled systems, another shortcoming would be that the MMTs do not perform quite as well for sag resistance.

This pregel was both pourable and pumpable Figure 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.

While the efficiency was there we garramite that the sag resistance fell off during the pot life. They also require the proper agitation during cooling in order to prevent the system from forming a false body.

Powdered rheology additive: GARAMITE

When comparing MMTs to fumed silica, the big difference is in bulk densities. The water is adhering to the clay surface and is not automatically available for reaction with the isocyanate. While polyamides in particular may be among the best at yielding that perfect buttery feel, they are much less forgiving during manufacture than MMTs.

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.