Bentonite Thickener Paint Putty Powder Added

Bentonite Thickener – Premium Calcium/Sodium Clay for Paints, Putties & Water Treatment

This versatile bentonite thickener, composed of high-purity calcium/sodium bentonite and activated bleaching clay (CAS No. 1302-78-9), is a game-changer for industries demanding superior rheology control and adsorption. With a purity of 90–95% and available in white or yellow powder form, it serves as both a thickening agent and a decolorizing adsorbent. Its unique thixotropic properties deliver exceptional suspension, preventing pigment settling in paints and ensuring smooth, even finishes. For putty powders, it enhances spreadability and workability, making application effortless while reducing cracking and shrinkage. Beyond coatings, its adsorption capabilities excel in wastewater treatment, binding heavy metals, dyes, and organic contaminants for effective decolorization and purification. Available in multiple grades – cosmetics, industrial, and feed – this bentonite thickener meets diverse processing needs, from personal care formulations to animal feed binders. Its low MOQ of 1 kg makes it accessible for R&D while bulk packaging (5–25 kg or customized) supports large-scale production.

Bentonite clay, particularly the calcium/sodium variety, swells in water to form a gel-like structure that imparts high viscosity at low concentrations. This characteristic makes it indispensable in water-based paint systems where sag resistance and pigment uniformity are critical. The activated bleaching clay form further enhances its decolorizing power, making it ideal for refining oils and purifying industrial process streams. Whether you are formulating architectural coatings, professional putties, or managing industrial effluents, this bentonite thickener delivers consistent performance and cost-efficiency.

Key Applications & Industry Benefits

In paint formulations, bentonite thickener stabilizes pigment dispersion and prevents settling, ensuring a smooth and even finish. It improves film formation, reduces brush marks, and enhances color consistency across batches. For putty powders, it boosts spreadability and workability, making it easier to fill holes and smooth imperfections without cracking. The clay’s high binding strength also improves adhesion to substrates, increasing the durability of repairs and coatings.

Beyond paints and putties, calcium sodium bentonite is highly effective in wastewater treatment. Its high specific surface area and cation exchange capacity allow it to bind contaminants such as heavy metals (lead, mercury, cadmium), organic dyes, and phosphates. The activated grade provides rapid decolorization, enabling compliance with environmental discharge standards. It is also used as a binder in animal feed, where it improves pellet quality and reduces mycotoxin risk. In cosmetics, it serves as a thickener and detoxifier in masks and creams, leveraging its natural adsorption properties.

Additional use cases include drilling fluid additives for viscosity control, foundry sand binders, and oil decolorization in edible oil refining. The product’s multi-grade availability (cosmetics, industrial, feed) ensures suitability for strict regulatory requirements, while its low MOQ supports pilot studies and new product development. Manufacturers benefit from consistent quality, rapid dispersion, and enhanced process efficiency.

Product Specifications & Technical Parameters

The table below outlines the key technical parameters for this high-purity bentonite thickener. All values are based on standard manufacturing specifications and may vary slightly by batch. For custom requirements, please contact our technical team.

All batches undergo rigorous quality control to ensure consistent particle size distribution, swelling index, and viscosity. Our bentonite thickener meets industry standards for stability and performance, making it a trusted choice for manufacturers worldwide. Contact us for detailed safety data sheets (SDS) and technical application guides.