Case study of mold release for molten metal: Coating that solved polypropylene stringing.
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Reduce thread pulling during thermal welding of PP with surface treatment technology! Achieve long mold life!
■Consultation In our customer's process of thermally welding polypropylene products, issues such as thread pulling and adhesion to the welding mold have arisen. The welding mold required not only release properties but also heat resistance and thermal durability. ■Background and Effects of Surface Treatment Selection Our company considered a hybrid approach of ceramic-based CHC and fluororesin-based low contact area coatings to enhance release effects and prolong the lifespan of mold exchanges. We proposed "CHC-1311," which balances thermal hardness and reduced contact area. Currently, our customers are using it to achieve both release properties and long lifespan. If you are having trouble with the release properties of welding molds, please consult Yoshida SKT.
basic information
■CHC Ceramic Hard Coat A new type of fluoropolymer coating that achieves both non-stick properties equivalent to standard fluoropolymer coatings and high film hardness at elevated temperatures. 【Features】 - Non-stick properties equivalent to PTFE and PFA - High film hardness at temperatures above 200°C (compared to PTFE) *Based on internal testing
Price range
Delivery Time
Model number/Brand name
CHC (Ceramic Hard Coat)
Applications/Examples of results
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