Chemical Foaming Agent Product Selection Quick Guide

Bergen International has focused exclusively on providing plastic processors with the best performing chemical foaming agents for low-density foaming processes since 1998. Below are some of the typical chemical foaming agents that have been used very successfully in various applications, base resins, and processes for a variety of purposes.

This information is provided as a quick guide only. We have a large range of products for a wide range of polymers and applications, but we offer this information as a helpful starting point for chemical foaming agent specifying. Please call us to discuss your application so we can offer additional assistance.

(For a comprehensive list of CFA products, use the links on the right to see our full range of Endothermic, Exothermic, and Endo/Exo Blend CFAs.)

Purpose	Process	Base Resin	Recommended Grade
Cell Nucleation	Direct Gas Extrusion	LDPE, PP	XO-256 XO-423

		PS	Foamazol™ 73 S

	Structural Foam	HDPE, PP	Foamazol™ 61 XO-385

Sink Mark Removal/ Warp Reduction	Injection Molding	LDPE, HDPE, PP, ABS	Foamazol™ 62 Foamazol™ 71

		PC, GF Nylon	XO-331

Weight Reduction	Injection Molding	LDPE, HDPE, PP	Foamazol™ 61 XO-385

		PP	Foamazol™ 71 Foamazol™ 72

		TPE	Foamazol™ 91 Foamazol™ 92

		ABS, PS, HIPS	Foamazol™ 95

		PC, PC/ABS	XO-230 XO-331

		PPO	XO-330

		PPS	Foamazol™ 95 Foamazol™ 85

Density Reduction	Sheet Extrusion	LDPE	Foamazol™ 91 XO-136 XO-355

		HDPE	XO-355

		PP	Foamazol™ 63 XO-256

		PS	XO-379 Foamazol™ 73

		PET	Foamazol™ 63

	Profile Extrusion	PVC	XOP-331 Foamazol™ 80 Foamazol™ 30

		LDPE, HDPE, PP	XO-279 XO-339

		PS	Foamazol™ 85 Foamazol™ 95 XO-379

Endothermic CFAs: Endothermic chemical foaming agents are chemicals that take heat away from the chemical reaction. This produces foams with a much smaller cell structure, resulting in improved appearance and better physical properties. Find an Endothermic CFA
Exothermic CFAs: Exothermic chemical foaming agents generate heat during the decomposition process. They liberate more gas per gram of foaming agent than endothermic agents and higher gas pressure. Find an Exothermic CFA
Endo/Exo Blend CFAs: Endothermic and Exothermic blends can have a synergistic effect that offers benefits over the use of either an endo or exo by themselves. Find an Endo/Exo Blend CFA
Custom Formulated CFAs: Bergen International prides itself on our ability to work with you to develop the exact blend that offers the best set of performance/cost benefits for your specific process and polymer. Find out more on custom CFAs
Request a Sample: Contact Bergen International to get a sample of endothermic, exothermic, or endo/exo blend CFA. Request a Sample