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Chemical
Foaming Agents
"Chemical Foaming Agents" (CFAs) or "Blowing Agents" are additives used by plastic manufacturers, which create "foam", or tiny air bubbles in products. Handles, window fames, automotive parts, medical and computer equipment, toys, etc. are all made with CFAs. The benefits are that products are lighter, use less plastic resin, and have a more uniform finish.
Foaming agents are used in plastics also for the purposes of density or hardness reduction, as well as weight for savings in material costs. CFAs are chemicals that can be incorporated into plastic to form a cellular structure through the release of gas during processing.
EPI is marketing patented Endothermic (EPIcor), Exothermic (EPIcell), and Exo-Endo (POLYcor) CFAs with special emphasis on its endothermic line of CFAs. Endothermic CFAs are far more versatile than the exothermic CFAs and can be used in numerous new applications and products that currently do not use any type of CFAs.
All conventional processes such as extrusion, calendaring, and injection molding can be adopted for producing cellular materials.
Features
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Use in injection molding, rotational molding, structural foam molding, and extrusion applications |
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No harmful chemicals |
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Made from FDA approved components |
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Exceeds performance levels of currently available CFA’s |
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Consistent results |
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Uniform cell structures |
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Wide range of activity levels and gas yields |
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Hybrid - Endo/Exothermic grades in a single pellet |
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Elimination of sink marks |
Benefits
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Uniform weight reductions |
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Fast degassing |
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Lower production costs |
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Lower raw material usage |
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Achieves superior surface characteristics |
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Enhanced physical properties |
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Increased “strength-to-weight” ratio |
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English | 
chemical foaming agents