Garamite 1210

Blend of minerals

Southern Clay Products

Á÷±äµ÷ÕûÆ÷/Ôö³í >> ÓÐ»úÕ³ÍÁ Rheology Modifier/ Thickener >> Organoclay »·ÑõÊ÷Ö¬ Epoxy Resins ¾Ûõ¥ >> ²»±¥ºÍ Polyester >> Unsaturated ÒÒÏ©»ù Vinyl Í¿²ã Coatings Garamite® rheological additives are a proprietary blend of minerals that have been organically modifed for use in applications using polymer resins such as unsaturated polyesters, epoxies and vinyl esters. Garamite® additives function to reduce the tendency of a coating or adhesive to sag on vertical surfaces while simultaneously offering viscosity control of the formulation. Garamite® additives are also incorporated into many applications to suspend fillers and pigments. Because of their unique chemistry and function, Garamite® additives are offered to these industries as 'superior' alternatives to other rheological additives. Garamite® additives are finding use in a variety of other applications such as polyurethane, alkyds, sealants, etc. EASY TO DISPERSE Garamite® 1958 is very easy to disperse in a variety of formulation types relative to many rheological additives. Moderate shear and short dispersion times are all that is required to fully disperse Garamite® 1958 into the formulation. For example, a typical shear rate and mixing time for an epoxy system formulated in the laboratory would be 3000 - 5000 rpm's for 3-5 minutes. Other rheological additives would require much greater shear rates at extended dispersion times. As a result of the lower dispersion times with Garamite® 1958, the formulator can realize significant savings because of reduced production time. HIGH EFFICIENCY (A) In many cases, Garamite® 1958 is highly efficient and allows a reduced level compared to other rheological additives to achieve the desired anti-sag behavior for the application. This performance factor coupled with the price/lb. of Garamite® 1958 results in an overall lowered system cost. (B) Garamite® 1958 performs particularly well in solvent-based systems and high solids systems. Many fillers play a role to enhance the efficiency of Garamite® 1958. UNIQUE RHEOLOGY Garamite® 1958 is a rheological additive which functions to impart thixotropy to a formulation giving the formulator viscosity control. Another key property that results from addition of the thixotrope is sag resistance which prevents a coating or adhesive from sagging on a vertical surface after application. One unique feature of Garamite® 1958 is that in many formulations, the viscosity of the A-Side containing the thixotrope remains very low while the resulting anti-sag performance is superior to competitive materials. This initial lower viscosity would enable the formulator to remove solvent from the system, thereby, increasing solids and reducing VOC's. Typically, high sag resistance is correlated with high viscosity. This is often the case with fumed silica products. The ability of Garamite® 1958 to provide excellent sag resistance and have a low A-Side viscosity is attributed to its quick recovery to its original viscosity when shear is removed. LOW DUSTINESS Garamite® 1958 has a relatively high bulk density compared to fumed silica (~ 8 lbs/cu. ft. versus 2.5 - 5 lbs/cu. ft.). This greatly reduces the 'dustiness' of Garamite® 1958. Airborne particles are minimized which reduces the inhalation factor, thereby, contributing to increased employee comfort. Low dustiness also means reduced waste and cleanup. Another benefit resulting from the higher bulk density of Garamite® 1958 includes less warehousing space for storage because of reduced ordering frequency. VERSATILE ADDITION One of Garamite® 1958's advantages over many rheological additives is it's versatility of addition and ease of incorporation. Addition can be made at any point during the process; pre-addition either on the A or B-Side or post-addition to adjust for final properties. Garamite® 1958 can be direct added to the resin or pre-added to the solvent. In many cases, pre-addition to the solvent can improve anti-sag behavior and increase viscosity. One of the features of Garamite® 1958 that allows such versatile addition is it's shear stability. Finally, Garamite® 1958 does NOT require heat activation like the polyamide waxes and castor oil rheological additives that are on the market today. VERSATILE APPLICATION Garamite® 1958 can be used to control rheology in a variety of applications including those using unsaturated polyester resins (UPR), vinyl ester resins and epoxy resins. UPR applications include reinforcing layers and gelcoats for tubs, showers, boats and bowling balls, for example. The primary application for vinyl ester resins is for corrosion resistance equipment. Within epoxy resins, Garamite® 1958 can be used successfully across all market segments, including coatings, adhesives, flooring and fiber reinforced composites.Further applications where Garamite® 1958 could potentially be used include industrial and construction sealants, alkyds, polyurethanes and acrylics. ANTI-SETTLING OF PIGMENTS Garamite® 1958 is very effective at suspending fillers and pigments in many systems such as highly filled epoxy resin formulations. It is the unique rheology of Garamite® 1958 that functions to suspend fillers; higher viscosity at low shear rates. Typical fillers and pigments in use today in epoxy systems include silica flour, calcium carbonate, titanium dioxide, talc, kaolin, mica and barium sulfate. In epoxy systems, they function to reduce the tendency of epoxy systems to sag on vertical surfaces while simultaneously offering viscosity control of the formulation. These unique products bring several advantages over conventional organoclays and fumed silicas such as ease of dispersion, higher efficiency and therefore, lower cost and use in a broader range of epoxy formulations. When compared to conventional rheological additives, such as fumed silica and conventional organoclays, the benefits of using Garamite® additives are: Improved Economics Higher efficiency: lower usage levels Increased productivity: easily disperses into monomer which reduces incorporation time Reduced storage space: higher bulk density than fumed silica Reduced waste and clean-up: less dusty than fumed silica Shear Stability Garamite® additive related properties are not affected by over shearing through time or energy Sag Prevention The quick recovery of viscosity reduces the running or sagging of the formulated resin on vertical surfaces Epoxy Application Types: Coatings Flooring Decorative Aggregates Adhesives Composites Sealants GARAMITE® 1210 provides ease of incorporation for unsaturated polyester resin manufacturers and end users, while producing proper rheological control, pigment/filler suspension and fiberglass wetting. Unlike Fumed Silica, GARAMITE® 1210 is more dense, less dusty, easier to handle and use, and has improved stability. Benefits Dispersion Ease Viscosity Stability Syneresis Prevention Gel Time Stability Settling Prevention Drainage/Sag Prevention Increased Efficiency Loading Levels GARAMITE® 1210 use levels are typically 30-50% less than Fumed Silica use levels. The exact dosage will vary depending on the individual system. Resins GARAMITE® 1210 is recommended for use in DCPD, Orthophthalic, Isophthalic and PET resins for laminating and gelcoat systems. Rheological Enhancers The use of GARAMITE® 1210 in combination with BYK® -R605* is recommended to enhance viscosity and thixotropy in many resin systems. The typical use level of the rheological enhancer is 5-10% of the GARAMITE® 1210 loading. Optimum use level should be determined by a dosage study. Defoamers Defoamers, such as BYK®-A555*, will enhance the release of air from the resin/monomer system. The defoamer should be added prior to the addition of GARAMITE® 1210. Organically modifed, proprietary blend of minerals. Used as a rheological additive in coatings using unsaturated polyesters, epoxies and vinyl esters. Provides anti-sag performance on vertical surfaces, viscosity control, moderate shear, short dispersion times, high efficiency, thixotropy, relatively high bulk density, low dustiness, versatility of addition, ease of incorporation and anti-settling of pigments. Offers syneresis prevention and gel time stability.