GARAMITE‑7305 Equivalent Organo Bentonite (CAS 68953‑58‑2) is specialized mixed‑mineral organoclay powder developed as direct functional alternative to GARAMITE‑7305, designed for solvent‑free epoxy and two‑component polyurethane systems. Under sufficient high‑shear dispersion, silicate platelets exfoliate to build a reversible three‑dimensional thixotropic network within the neat resin matrix. At static state, the network suppresses sedimentation of heavy mineral fillers, quartz sand and functi

Product Detail

Product Overview

GARAMITE‑7305 Equivalent Organo Bentonite, CAS 68953‑58‑2, is purified layered silicate modified by dedicated organic treatment, serving as premium performance replacement for GARAMITE‑7305. This rheology additive is specially optimized for solvent‑free epoxy and polyurethane resin systems including two‑component flooring, heavy‑build protective coatings and casting resins. Different from conventional solvent‑grade organo bentonite, this mixed‑mineral product achieves satisfactory platelet exfoliation under intensive high‑shear mixing, without requirement for extra polar activator. Exfoliated silicate platelets construct reversible three‑dimensional colloidal thixotropic network inside the high‑viscosity solvent‑free resin matrix. When stored statically, the network holds dense mineral fillers, quartz aggregates and functional pigments in stable suspension and prevents the formation of hard sediment cake. During trowelling, roller application or pouring operations, mechanical shear disrupts the thixotropic network, reducing system viscosity to deliver favorable workability and wetting behaviour towards aggregate fillers. After construction stops, the thixotropic network rebuilds quickly, which strongly inhibits sagging, dripping and run‑off on vertical and slanted substrates. This organo bentonite maintains original curing characteristics of epoxy and polyurethane systems, with limited adverse effect on hardness, adhesion and chemical resistance of cured films. It delivers consistent batch‑to‑batch quality for mass‑production of solvent‑free heavy‑build industrial coatings and flooring materials.

Key Features

‑ Mixed‑mineral organo bentonite, functional equivalent to GARAMITE‑7305 for solvent‑free epoxy and polyurethane resin ‑ No mandatory polar activator; adequate high‑shear dispersion realizes effective silicate platelet exfoliation ‑ Superior anti‑settling performance for heavy mineral fillers, quartz sand and functional pigments within solvent‑free resin ‑ Excellent anti‑sag and anti‑dripping capacity on vertical and inclined surfaces for heavy‑build thick‑film construction ‑ Typical shear‑thinning thixotropy, balances resin workability during application and static suspension stability ‑ Good compatibility with amine epoxy hardeners and isocyanate‑based PU curing agents, low interference to curing behaviour ‑ Fine free‑flowing powder, suitable for feeding into solvent‑free resin production without heavy dust problems ‑ Stable rheological consistency for continuous manufacturing of flooring, heavy‑duty protective coatings and casting resin

Technical Specifications

‑ Product Name: GARAMITE‑7305 Equivalent Organo Bentonite ‑ CAS Number: 68953‑58‑2 ‑ Appearance: Light off‑white fine powder ‑ Moisture: ≤3.5 % ‑ Loss on ignition: 33.0‑41.0 % ‑ Fineness (325 mesh residue): ≤2.0 % ‑ Bulk density: 0.26‑0.36 g/cm³

Application Scenarios

‑ Solvent‑free two‑component epoxy industrial flooring and self‑levelling floor formulations ‑ Solvent‑free thick‑film polyurethane heavy‑duty protective coatings for steel structures ‑ Filled epoxy‑PU hybrid heavy‑build anti‑corrosive coating systems ‑ Resin casting formulations loaded with mineral fillers and aggregates ‑ Rheology‑modifying thickening powder for solvent‑free epoxy and polyurethane resin industry

Usage Recommendation

‑ Typical dosage range: 0.4‑1.7 % based on total formulation weight ‑ Add organo bentonite powder into base resin under high‑shear dispersion prior to introducing fillers, aggregates and curing agents ‑ Sufficient high‑shear mixing is essential to complete platelet exfoliation and develop target thixotropy; insufficient shear results in poor anti‑sag and thickening performance ‑ Conduct full laboratory pre‑testing for resin viscosity, filler suspension, anti‑sag property, curing profile and final mechanical performance before mass‑scale production ‑ Avoid over‑dosage; excessive addition will bring undesired high viscosity and deteriorate trowelling and pouring workability

Package & Storage

‑ Standard packing: 25kg kraft paper bag with inner PE liner ‑ Store in cool, dry and ventilated warehouse, keep away from moisture absorption and heavy compression ‑ Tightly seal bags after opening to prevent moisture ingress ‑ Shelf life: 12 months under recommended storage conditions

Safety Notes

‑ Avoid dust generation and inhalation during material handling; wear dust mask and safety goggles. ‑ Prevent direct skin contact, chemical‑resistant protective gloves are required for operation. ‑ Keep away from open flame and high‑temperature heat sources. ‑ Please refer to SDS document for complete guidance on handling, transportation and emergency disposal.

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GARAMITE‑7305 Equivalent Organo Bentonite CAS 68953‑58‑2 Anti‑Sag Thickener for Solvent‑Free Epoxy Polyurethane System

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.