We use nano-additives in many ways. We add them to commodity polymers to create new polymers that may be superior to existing engineering polymers in several ways, including a variety of mechanical properties and lower weight.


We also add nano-additives to existing engineering polymers to create a new polymer with so many enhanced properties, increased structural integrity and lighter weight that they can become the material of choice to replace metal on equipment as sophisticated as the latest model cars and even communications satellites.


We’re also specialists in the dispersion of nano-additives. This is important because, without proper procedures, additives can tend to agglomerate, leading to uneven performance of the final material.


Because, as their name indicates, nano-additives are extremely small (less than one one-millionth of an inch across), when they are added to commodity or engineering polymers, the weight of the final product is lower compared to using conventional additives. But they can also markedly improve the performance of the final material in a multitude of other ways:

  • Chemical, mechanical  and  thermal resistance
  • Thermal and electrical conductivity
  • EMI (Electromagnetic Interference) shielding
  • The aesthetic look of your final product


Regrind is material that has already undergone a process such as extrusion or molding and then is chopped up to the appropriate size for repurposing. We offer regrind of consistent quality that can be separated by color and reach a purity level of 95%. It is the sophistication of our sorting processes that allow us to reach purity levels that are rarely, if ever, attained by other companies in North America.


The advantage of using regrind is that it generally comes at a lower cost, and reduces stress on the environment because we are reusing existing material as an alternative to creating new material.


These agents are added to polymer strings to join them up and extend polymers in a linear fashion to alter and improve the mechanical and other properties of the new polymer.


Compatibilizers are agents that allow the use of materials that are generally considered immiscible, for example, regrind. Stabilizers are, as their name indicates, agents that stabilize the final product. An example would be a piece of furniture that has been colored. A stabilizer would protect against the degradation of the color over time due to exposure to harmful UV rays.



We offer a range of superior black and white colorants. Our black colorants are especially interesting: you can use as little as 1/3 the amount of the regular colorant and achieve similar or superior results. This is obviously another way to reduce costs.

No one colorant is suitable for the variety of resin materials on the market. That’s why we offer a number of different carriers for our colorants that can match a wide range of resins market (PA66, SAN, ABS, PC, PET) to achieve optimal results.


KWI offers a wide range of colorants that facilitate the filling of molds. This can create savings of from 30% to 50% in the coloring and manipulating phases, in part due to the fact that liquid colorants lower the coefficient of friction in operations.


We also act as a distributor for a variety of additives, including:

  • Calcium carbonate
  • Dessiccants
  • Nucleating agents
  • Clarifying agents
  • Agents facilitating flow during injection processes
  • Flame retardant agents
  • Purging agents (used to clean machines when changing colors)





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