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Sigma Cat Amine Catalysts
Sigma Cure and Biocure phenolic urethane cold box (PUCB) systems use vaporized amines as the catalyst which initiates a reaction between a phenolic resin and an isocyanate resin to form a urethane polymer. TEA (triethylamine), DMEA (dimethylethylamine), and DMIPA (dimethylisopropylamine) are used in the vapor form as catalysts in this process.

HAI's amine catalyst product line, Sigma Cat, is designed for use with our entire line of phenolic urethane cold box resins. To learn more read our Sigma Cat Technical Data Sheet.

Sigma Cat 2185 (TEA) Sigma Cat 2190 (DMIPA) Sigma Cat 2195 (DMEA)
Lower Cost Faster Cure Fastest Cure
Low Odor Lowest Odor Better Cure of Low Permeability Cores


HA International offers Sigma Cat 2185 (TEA), Sigma Cat 2190 (DMIPA) and Sigma Cat 2195 (DMEA) in two different packages. The table below lists the Sigma Cat manufacturing/shipping facilities, packaging options and package weights.


Product Name Manufacturing Facility Material Number Package Type Weight (lbs)
Sigma Cat 2185 (TEA) Chicago Heights, IL 323240 Cylinder 650
323541 Drum 330
Sigma Cat 2190 (DMIPA) Chicago Heights, IL 340002 Cylinder 618
340003 Drum 309
Sigma Cat 2195 (DMEA) Chicago Heights, IL 337307 Cylinder 572
322808 Drum 286


HARP HAI Amine Recycling Program
HA International offers our customers an environmentally conscientious alternative to scrubber solution waste disposal. With HAI's HARP program, Amine is recovered to virgin specifications using the latest innovations in process technology.

Amine recovery supports HA International's EcoMission strategy of sustainability, by minimizing the environmental impact of our products. For information please view our HARP Amine Recycling Program page.

Return of Empty Cylinders
Amine CylinderEmpty Sigma Cat 2185, Sigma Cat 2190 and Sigma Cat 2195 cylinders can be returned to the location listed below. Customers are responsible for the return freight of the empty cylinders.

PolyChem Services Inc.
374 E. Joe Orr Road
Chicago Heights, IL 60411
Phone: 630-429-3640

Technical Assistance
Proper selection of a binder system that meets your specific needs is key to achieving maximum performance benefits. HAI provides in-depth technical assistance and a wide range of urethane cold box binder systems. Both our in-house and field experts are available to assist you in your most challenging foundry applications. Contact us today so that we may assist you in putting together a binder system that will help you achieve your goals.