In the last few years, we can see several advancements have been made with commercial purging compounds (CPCs). While both chemical and mechanical-based products provide multipurpose grades, there’re also many grades engineered for exact applications. Choosing the very best product for your specific application is vital for an effective result. Here’s a guide on how to choose the best purging material for your exact applications.
Comprehending the inherent properties of your molding resin is really critical in deciding which purging compound is most favorable for your application. Whether you want to use a chemical or mechanical-based purging material, having an idea about the processing temperature range of the molding resin is an important aspect in choosing the right grade. Every purging compound comes with an optimum processing temperature range.
Suggested Read: Keep Your Blow Molding Machine In Optimal Condition With Right Purging Compound
Also, you need to consider the thermal stability of a resin before choosing a purging product. Heat or moisture-sensitive resins like polycarbonates, PVC, and nylon deteriorate much quicker and thus may lead to carbon accumulation, which can upshoot to black spotting. When black specks are found, you will need a more aggressive purging material to wipe the carbon accumulation from the screw and barrel surface. It is also important to get rid of any uneven resins when shutting down your machine since they are likely to degrade. They need to be replaced with an even purge material.
The thickness of your production resin is another important parameter in choosing the correct purging material for your application. Since purge products work with bodily force & agitation, the thickness of your production resin will have a huge impact on the effectiveness of the product.
Nearly all purging materials make use of a high-viscidness resin as the main carrier while composing a grade. No doubt, these carriers work nicely for purging a wide spectrum of resins, but in some cases, it’s tough to dislocate them with subsequent production resin. Processors label this step as “post-purging.” In the event you’re running a low- viscidness resin, a purging material with lower thickness should post-purge more proficiently.
Where To Buy Purging Material?
UNICLEANPLUS™ is a highly reliable source whether you are looking for a Purging Material for Injection Moulding or a Purging Material for Extruder. We provide highly effective purging solutions to cover a wide array of operating temperatures, equipment types, and process applications. Thermoplastic processors can enhance their performance and operations with the help of our highest quality purging material.
Suggested Read: The Use of Commercial Purging Material in Extrusion Process
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