The Plaza Group offers materials used in the manufacture of master batches and resins including silica and nylon.



Plastics are synthetic materials made from a wide range of organic polymers such as polyethylene, polypropylene, polycarbonate and nylon, that can be molded into shape while soft and then set into a rigid or slightly elastic form. Plastic applications are seemingly endless including toys, auto parts, heart patches and stents, flexible packaging, food packaging, containers and in the replacement of metal and glass.

Plastics can be converted into finished goods in a number of ways including calendering, extrusion, blow molding, injection molding, rotational molding, compression molding, film blowing and thermoforming. Manufacturers of finished plastics can choose different paths to produce the colors and properties they desire. Complete pre-colored polymer can be used where no mixing or blending is required. Alternatively, and usually more cost effective, is the use of masterbatches where pigments and/or other additives are already optimally dispersed in a carrier material that is compatible with the base polymer to be used. Manufacturers can also choose to add pigment and additives directly although getting proper dispersion and avoiding waste are typical challenges.


Cromex is a leading Brazilian company in the color concentrates and plastic additives business. Their products are heavy metals free. The company has been in business for more than 40 years, exporting its products to more than 60 countries in North America, Latin America, Western Europe and others.

In June 2017, The Plaza Group initiated relations with Cromex with sales outside the US into select regions. In July 2017, we became a distributor for Cromex products in the United States. Offerings include black, white, color and microcolor masterbatch as well as additives delivering qualities of antistat, antiblock, antifog, slip agent, optical brightener, flame retardant, UV protector and desiccant.


Consistent high quality reprocessed/recycled polymers offer an opportunity to lower cost while demonstrating to the consumer your “green” efforts and environmentally friendly perspective.


For more information about a particular product, how it is used and its specifications, simply click the product name from the list.


To view our supply map for all products, please click here.


For other products, or additional information of a specific product, please contact our local office via phone (800) 876-3738, or via email



PRODUCT NAME:     Cromex Additives Concentrates




DESCRIPTION:     Masterbatch modifiers of the intrinsic properties of thermoplastics to meet customer needs.


Mineral fillers: confer improved mechanical properties, dimensional stability, surface roughness, and promotes cost reduction;
Antioxidants: prevent or retard the polymer thermodegradation process in heat and oxygen presence during processing and / or directly into final product;
Antistatic: prevent the accumulation of electrostatic surface charge into final product;
Flow Auxiliaries: Reduce flow lines and increase productivity in extruded products;
UV stabilizers: protect plastic products under UV radiation action, providing greater durability;
Sliders: reduce surface friction on film and, consequently, increase its sliding property;
Anti-block: prevents blocking / adhesion between polymer surfaces;
Expanders: are added to polymers in order to reduce weight and improve dielectric properties, of thermal and acoustic insulation;
Antifog: prevents the formation of drops on the internal and external surfaces of films caused by water condensation;
Breathables: specific additives for hygienic products such as diapers and sanitary napkins;
Flame retardants: modify the burning behavior in different polymer blends;
Other additives: We have other additives lines, such as anti-skid, purging compounds, desiccants, light diffusers, clarifiers, optical brighteners, nucleants, impact modifiers, mould release agents, etc.


APPLICATIONS:     For more details and applications, please visit:


PRICING & AVAILABILITY:     For inquiries, availability and product pricing on all Cromex products, please contact Erika Bernhardt at (713) 302-2206 or Jerry Dunn at (813) 541-3077. For inquiries, availability and product pricing on all other products, please contact Jerry Dunn at (813) 541-3077.


While this site is intended as a resource, please consult one of our business directors at 800.876.3738 to confirm any information contained herein.

The Plaza Group · 1177 West Loop South, Suite 1450 · Houston, Texas 77027

Phone (713) 266-0707 · Fax (713) 266-8660 · Orders (800) 876-3738 · Email


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