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Why Are Chemical Foaming Agents Used In Injection Molding?

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Why Are Chemical Foaming Agents Used In Injection Molding?

Chemical foaming agents (CFAs) can be organic or inorganic compounds that release gasses upon thermal decomposition. CFAs are typically used to obtain medium- to high-density foams, and are often used in conjunction with physical blowing agents to obtain low-density foams.

Weight reduction and sink removal are the two main reasons that chemical foaming agents are used in injection molding. When using a Chemical foaming agents for weight reduction it is important to reduce the shot size to make short shots and use the foam to help fill the mold. 


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