OPTIGEL‑WA Equivalent Water‑Based Bentonite (CAS 68953‑58‑2) is refined and specially processed layered silicate powder developed as direct functional alternative to OPTIGEL‑WA, designed for neutral‑alkaline waterborne industrial coating systems. Under sufficient moderate high‑shear hydration‑dispersion in aqueous media, silicate sheets exfoliate to build a reversible three‑dimensional thixotropic gel network. At static storage, this network suspends heavy pigments, metallic pigments and mineral

Product Detail

Product Overview

OPTIGEL‑WA Equivalent Water‑Based Bentonite, CAS 68953‑58‑2, is manufactured from purified natural montmorillonite via dedicated refining and surface treatment, acting as premium inorganic rheology substitute for OPTIGEL‑WA. This rheology‑modifying powder is specially optimized for neutral‑alkaline waterborne industrial coating formulations. Unlike conventional organophilic solvent‑grade bentonite, this water‑activated bentonite develops thixotropy through hydration and platelet exfoliation under moderate high‑shear mixing in aqueous phase; no extra polar activator is required. Exfoliated silicate platelets construct a reversible three‑dimensional colloidal thixotropic network inside the aqueous resin‑dispersion matrix. Under static storage conditions, the network holds heavy‑weight mineral fillers, anti‑corrosion pigments and metallic pigments in stable suspension, efficiently inhibiting hard compact sediment cake even in neutral‑to‑alkaline high‑pH coating systems. During airless spraying, roller coating or brushing, external mechanical shear disrupts the colloidal network, lowering system viscosity to guarantee desirable wet‑film flow and leveling performance. Once construction stops, the thixotropic network rebuilds quickly and effectively restrains sagging and running on vertical metal surfaces. This inorganic bentonite possesses excellent pH‑resistance performance within neutral‑alkaline range, shows good compatibility with water‑borne acrylic, polyurethane and modified‑epoxy dispersions. It only imposes limited adverse impact on cured‑film gloss, hardness and anti‑corrosion properties. Consistent batch‑to‑batch quality supports continuous mass‑production of water‑based industrial primers, intermediate coats and heavy‑duty anti‑corrosive coatings.

Key Features

‑ Water‑based inorganic bentonite, functional equivalent to OPTIGEL‑WA for neutral‑alkaline waterborne industrial coatings ‑ Hydration‑driven platelet exfoliation under moderate high‑shear mixing, additional polar activator is not necessary ‑ Outstanding anti‑settling capacity for heavy mineral fillers and anti‑corrosive pigments within neutral‑alkaline aqueous paint systems ‑ Reliable anti‑sag performance on vertical metal substrates for thick‑film industrial coating construction ‑ Distinct shear‑thinning thixotropic behaviour, balancing long‑term storage suspension stability and on‑site wet‑film leveling ‑ Excellent pH tolerance for neutral‑alkaline formulations, broad compatibility with multiple water‑based resin dispersions ‑ Fine free‑flowing off‑white powder, suitable for continuous feeding in industrial water‑based paint manufacturing workshops ‑ Stable rheological consistency for large‑scale production of water‑borne industrial primers, intermediate coats and anti‑corrosive coatings

Technical Specifications

‑ Product Name: OPTIGEL‑WA Equivalent Water‑Based Bentonite ‑ CAS Number: 68953‑58‑2 ‑ Appearance: Off‑white fine powder ‑ Moisture: ≤3.8 % ‑ Loss on ignition: 10.0‑16.0 % ‑ Fineness (325 mesh residue): ≤2.0 % ‑ Bulk density: 0.24‑0.35 g/cm³

Application Scenarios

‑ Neutral‑alkaline water‑based industrial anti‑corrosive primers for metal substrates ‑ Waterborne intermediate coats for machinery and equipment ‑ High‑filler alkaline water‑based protective industrial coatings ‑ Water‑based metal finishing paints with anti‑corrosion pigment loading ‑ Inorganic rheology thickening additive for neutral‑alkaline water‑borne industrial coating production

Usage Recommendation

‑ Typical dosage range: 0.3‑1.4 % based on total paint formulation weight ‑ Add bentonite powder to aqueous grinding phase under moderate high‑shear mixing at pigment grinding stage prior to introducing resin dispersion ‑ Sufficient hydration time and proper shear speed are critical to develop target thixotropy; insufficient hydration will result in pigment settlement ‑ Conduct complete laboratory pre‑evaluation covering viscosity, pH‑stability, anti‑sag property, storage stability and final cured‑film performance before mass‑scale paint manufacturing ‑ Avoid excessive addition; over‑dosage may cause excessive viscosity and deteriorate wet‑film leveling and spraying properties

Package & Storage

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

Safety Notes

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

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OPTIGEL‑WA Equivalent Water‑Based Bentonite CAS 68953‑58‑2 Thickener for Neutral Alkaline Waterborne Industrial Coatings

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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.