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China, Chinese China Industrial Grade Organic Clay Rheological Additive Bentonite Inorganic Nature Chemical Stability1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Nonmetallic MineralsBentoniteIndustrial Grade BentoniteClay Powder Bentonite
Pureytech Materials (Shenyang) Co., Ltd
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Product DescriptionOverviewPaint bentonite is an organically modified montmorillonite clay specifically developed for the coatings industry, serving primarily as a highly efficient rheological additive. Within solvent-based coating systems, it interacts with solvent molecules through polar activation sites to form a robust three-dimensional network gel structure. This structure imparts distinct thixotropic properties to the coating: its viscosity decreases under shear force (e.g., during stirring or brushing), facilitating easy application; meanwhile, viscosity quickly recovers at rest, effectively preventing the settling and caking of pigments and fillers, and avoiding sagging during application. Consequently, paint bentonite is indispensable in alkyd paints, epoxy coatings, industrial anti-corrosion paints, and similar fields, significantly enhancing the storage stability, application performance, and final film quality of the coating.Important ParametersKey Parameter:Viscosity/Gel Strength:This is the most important indicator measuring the ability of bentonite to form a network structure in solvents. High viscosity/gel strength means better suspension and anti-sagging properties.Moisture Content:The moisture content needs to be controlled within an appropriate range. Excessively high moisture can affect the product's dispersion in organic systems and may cause packaging issues.Particle Size Distribution:A finer particle size generally facilitates faster dispersion and swelling, leading to quicker development of the final viscosity.Activation Method:Bentonite used in paints is typically "organoclay" or "organophilic clay," which is natural sodium bentonite modified with organic cations (e.g., quaternary ammonium salts) to make it wettable by organic solvents.Dispersion:Refers to the ability of the bentonite powder to disperse easily in solvents without forming lumps. Good dispersion is a prerequisite for forming a uniform gel structure.pH Value:The pH value of the bentonite slurry can affect its compatibility in different coating systems and is usually kept near neutral.Thixotropy:Refers to the property where the coating becomes thinner under shear force (e.g., stirring, brushing) and thickens again after standing. Bentonite is an excellent thixotropic agent, and this property is crucial for application and leveling.Product ApplicationsSolvent-Based Coatings:Industrial Coatings:In solvent-based coatings (e.g., alkyd, epoxy, polyurethane), paint bentonite serves as a core rheology control agent. Its primary functions are to prevent the settling of pigments and extenders, ensuring the product remains homogeneous and stable during storage, thus avoiding hard packing. Simultaneously, it provides excellent thixotropy: during application (brushing, rolling, spraying), shear stress temporarily reduces viscosity, allowing the coating to level and wet the substrate easily; once application ceases, viscosity quickly recovers, effectively preventing sagging on vertical surfaces and enabling the application of thicker coats in a single pass without dripping. Furthermore, it enhances the anti-settling property and storage stability of the coating.Industrial coatings (e.g., marine, container, and protective coatings for steel structures) often require thick-film application and are exposed to harsh environments. In this field, the high gel strength and exceptional anti-sagging properties of paint bentonite are critical. It ensures the long-term stability of coating systems containing high-density anti-corrosive pigments (e.g., zinc dust) without settling. During spraying, it allows for the formation of wet films several hundred microns thick without sagging, ensuring uniform coating thickness and providing durable and effective corrosion protection. Its thixotropic nature also contributes to improved application efficiency and reduced material waste.Primers and Putties:Inks and Sealants:In primers and putties, paint bentonite functions primarily as a thickening and anti-settling agent. These products typically contain a high proportion of solid powders (e.g., extenders, pigments). The three-dimensional network formed by bentonite effectively locks these solid particles in place, preventing them from settling and forming hard packs during storage, thus ensuring a uniform consistency upon can opening and easy stirring. For putties, the thixotropy provided by bentonite grants good application properties – it spreads easily under the trowel yet holds its shape without slumping or excessive leveling after application, facilitating the filling and smoothing of substrate imperfections.In certain inks (e.g., screen printing inks) and sealants, paint bentonite plays a vital role as a thixotropic agent. In inks, it prevents the ink from bleeding on the screen, but its viscosity decreases under the pressure of the squeegee, allowing smooth passage through the mesh; viscosity instantly recovers after printing, resulting in sharp, clean images without bleeding. In sealants, it similarly provides structural viscosity: it is easy to extrude from the cartridge, and it holds its shape without slumping or sagging after application, ensuring good gap-filling properties for vertical joints.SpecificationPaint Bentonite/Magnesium aluminum silicatecelluloseCarbomerpolyurethaneIonic resistanceExcellentOrdinaryshortshortstickinessOrdinaryGoodOrdinaryOrdinarythixotropyGoodOrdinaryGoodshortAntisinking propertyGoodOrdinaryGoodshortheat resistanceGoodOrdinaryshortshortApplication SystemOil and water dual purposeMostly water-basedWater-based systemOil and water dual purposeMold resistancePure inorganic with excellent mold resistanceshortOrdinaryGoodvalue for moneyHighHighOrdinaryOrdinaryAcid and alkali resistanceGoodOrdinaryshortshortThe above parameters represent data for only a portion of our product types. Should you require more detailed information, please feel free to contact us at any time. We would be delighted to assist you.Packaging & ShippingAbout usWe offer very flexible packaging and shipping solutions to meet your needs:If you are using it regularly, we recommend the standard packaging of 25kg/bag, using an inner film woven bag with good moisture resistance, easy handling and storage, ensuring that the goods are dry and delivered.If you have a large usage and ton bag feeding equipment, we strongly recommend ton bags with a capacity of 1 ton, which can significantly save you packaging and handling costs per ton and increase unloading efficiency.Company ProfilePurey Tech is a trading company specializing in the export of bentonite products. We are dedicated to providing global customers with high-performance bentonite solutions sourced from China's premium mineral deposits. Through long-term, stable strategic partnerships with leading producers in China's major bentonite mining regionswe have consolidated a diverse and robust supply network. This allows us to reliably offer a wide range of bentonite products tailored to various specifications, which are extensively used in multiple industrial sectors such as foundry, drilling fluids, and feed additives.Our AdvantagesA. With over 12 years of export experience, our professional team provides prompt online support to address your inquiries anytimeB. Superior quality, price assurance, and rapid supply to meet large order demandsC. Flexible payment options with timely delivery of goods and documentation for hassle-free efficiencyD. Durable, moisture-resistant outer packaging with multiple options to accommodate diverse shipping requirementsE. Close collaboration with freight forwarders ensures rigorous post-shipment security, delivering peace of mind.FAQQ: What about your price?A: We offer products at competitive rates, as we believe this helps foster lasting partnerships with our clients and build a strong reputation.Q: What payment terms do you accept?A: New customers are required to pay 50% T/T in advance, with the remaining 50% due upon copy of shipping documents. We also accept L/C at sight. Regular customers may enjoy more flexible terms based on past cooperation.Q: What is the order lead time?A: Orders are typically processed within 10-15 days after we receive your advance payment.If you are interested, please contact me immediately, I will give you the most satisfactory answer.Thank you very much.
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