Organoclay BENTONE‑34 Equivalent CAS 68953‑58‑2 Organophilic Bentonite for Alkyd Anti‑Corrosion Paint Ink
BENTONE‑34 Equivalent Organophilic Bentonite (CAS 68953‑58‑2) is surface‑modified organoclay designed to match the performance of BENTONE‑34, suitable for low‑to‑medium polarity solvent‑borne alkyd anti‑corrosion coatings and printing inks. This grade requires proper polar activator together with high‑shear dispersion to achieve sufficient platelet exfoliation. It forms reversible three‑dimensional thixotropic gel network within alkyd resin‑solvent systems. The network restrains sedimentation of
Product Overview
BENTONE‑34 Equivalent Organophilic Bentonite, CAS 68953‑58‑2, is manufactured from purified montmorillonite clay modified by organic quaternary ammonium salt. It is formulated as a direct performance alternative to BENTONE‑34, specially optimized for low‑to‑medium polarity solvent‑based alkyd anti‑corrosion coatings and printing ink systems. Unlike self‑activating bentonite grades, this product needs matched polar activator plus high‑shear mixing for complete exfoliation of clay platelets. After adequate dispersion, exfoliated clay sheets construct a reversible three‑dimensional colloidal thixotropic network. At static storage condition, the network effectively suspends dense anti‑corrosion pigments and mineral fillers, avoiding hard compact sediment cake inside paint and ink containers. When subjected to shear during spraying, brushing or ink printing, the network breaks down, lowering system viscosity to deliver desirable flow and leveling. Once mechanical shear disappears, the thixotropic structure rebuilds quickly to suppress sagging on vertical metal substrates. It maintains stable gloss of cured alkyd paint film and offers consistent batch‑to‑batch quality for mass‑production of protective paints and solvent‑based printing inks.
Key Features
‑ High‑performance organoclay equivalent to BENTONE‑34 for low‑to‑medium polarity solvent‑based systems ‑ Requires suitable polar activator and high‑shear dispersion for optimal exfoliation and rheology development ‑ Excellent anti‑settling capability for heavy anti‑corrosion pigments and mineral extenders during long‑term storage ‑ Effective anti‑sag property for vertical metal surfaces, enabling moderate thick‑film build‑up for alkyd anti‑corrosion coatings ‑ Distinct shear‑thinning thixotropy, balancing suspension stability and wet‑film leveling performance ‑ Good compatibility with different alkyd resins, minor negative influence on final film gloss and hardness ‑ Fine free‑flowing off‑white powder, convenient for feeding in paint and ink production lines ‑ Stable rheological performance for continuous manufacturing of industrial protective paints and printing inks
Technical Specifications
‑ Product Name: BENTONE‑34 Equivalent Organophilic 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: 0.21‑0.32 g/cm³
Application Scenarios
‑ Solvent‑based alkyd anti‑corrosion primers and intermediate coats for metal structures ‑ Heavy‑duty industrial alkyd protective coatings for machinery and steel components ‑ Low‑to‑medium polarity solvent‑based printing inks requiring thixotropy and anti‑settling ‑ Marine and equipment maintenance alkyd paint formulations ‑ Rheology‑control organoclay additive for low‑medium polarity alkyd coating systems
Usage Recommendation
‑ Typical dosage range: 0.5‑2.0 % based on total weight of paint or ink ‑ Pre‑disperse this organophilic bentonite together with polar activator in solvent under high‑shear mixing at 40‑60℃ to form pre‑gel before adding resin, pigments and fillers ‑ Sufficient high‑shear dispersion together with correct activator dosage is essential for target thixotropic effect; insufficient activation or shear will lead to poor thickening performance ‑ Conduct complete laboratory pre‑testing for rheology, anti‑sag, leveling and long‑term storage stability prior to mass‑scale production ‑ Avoid excessive addition, which may result in undesired viscosity increase and deterioration of film leveling property
Package & Storage
‑ Standard packing: 25kg kraft paper bag with inner PE liner ‑ Store in cool, dry and ventilated warehouse, protect from moisture absorption and heavy compression ‑ Tightly seal opened bags to prevent moisture ingress ‑ Shelf life: 12 months under proper 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 protective gloves are required during 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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