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Matching the right molecule to your technical challenge


To get the right results in complex mining applications, every molecule matters. Partner with Chemstar for the starch polymer expertise and collaborative R&D to produce the exact product for your extraction and beneficiation processes, and save valuable time and money.

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Water-soluble polymers that are versatile performers

Cu & Pb SMOOTHING AGENT FOR SX/EW
Chemstar polymers enhance densification of copper, lead and other minerals, for high purity content and smooth cathode.

BINDING/AGGLOMERATION
Leverage our starch polymers’ superior adhesive properties to size your mineral appropriately and efficiently.

FLOCCULANT REAGENTS, FILTER AIDS, DEPRESSANTS AND THICKENERS
Functional molecules remove unwanted gangue material from your process, maximizing recoveries.

DUST CONTROL
Employ our cost-effective, bio-based products to reduce unwanted dust while minimizing water use.

Core polymer applications

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COPPER LEVELING & SMOOTHING

High-soluble Chemstar polymers provide unique benefits for copper processing:

  • Serving as an effective smoothing agent for copper electroplating and electrowinning operations
  • Promoting the growth of dense, fine-grained copper with reduced impurities to eliminate nodulation
  • Reducing cost relative to other agents or polymers

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MINERAL BINDING

  • Including dust suppression, sizing and a variety of other critical binding applications

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Purer profits: the Chemstar advantage

With Chemstar, you get a full-service partner with hard-working polymers that deliver benefits across your operation:

INCREASE EFFICIENCY
Optimize both extraction and concentration.

IMPROVE REFINEMENT
Eliminate impurities and increase your profitability.

ENHANCE SUSTAINABILITY
Take advantage of bio-based, environmentally friendly polymers.

Product lineup

We tailor our product development to your specific requirements or ore demands. Our Paul F. Werler Innovation Center can support mine testing, and we’ll make our other advanced resources available to you to get the results you need. Below are just some of the products we have developed for mining customers. Contact us to talk about your specific requirements.

HydroStar® Series

HydroStar is a leading polymer smoothing agent for electroplating and electrowinning operations. For copper, lead or zinc mineral production, it promotes the growth of dense, fine-grained cathode with reduced impurity content.

FiberStar® Series

FiberStar polymers are cold-water soluble, low-viscosity, non-iconic polymers. These bio-based polysaccharides impart enhanced functional properties, including: adhesion/binding with superior cost efficiencies, water retention, and improved rheology and viscosity.

StarFloc®

A cost-effective, naturally occurring organic flocculent, StarFloc is ideal for removing suspended solids in storm water and process wastewater. The application of this 100% bio-based starch polymer is safe for the environment, plants and animals.

GlucoPlus® C

GlucoPlus C is a cationic derivative, cornstarch polymer that is cold-water soluble with normal viscosity. Its water-soluble and cationic properties make GlucoPlus C a versatile solution for specialty wet-end mining and mineral applications, or as a flocculent for the water treatment industry.

DustStar and StarTak®

Our StarTak line of 100% bio-based, starch-derived products has proven to be more effective than any other natural or synthetic tackifier agents on the market. A smart choice for controlling wind and water erosion and promoting soil stability.

Don’t see the product you need?


Chemstar can formulate custom products to meet specific application and performance requirements. Contact us for a solution.