When it comes to choosing overmolding materials, start the resin selection process at PMC. The impact of global trade policies on injection molding operations requires manufacturers to remain agile. Fluctuations in tariffs and trade agreements can affect material costs and supply chains, necessitating strategic planning and adaptability. Injection-compression molding combines the benefits of injection molding and compression molding, resulting in reduced stress and warpage in larger parts. Precision in mold design ensures proper material flow and prevents defects like warping or short shots, while optimizing gate location and venting systems reduces air entrapment, improving overall product quality and consistency.
We serve a wide range of industries requiring mission-critical parts, including aerospace & defense, automotive, electronics, filtration and more. In-mold decoration (IMD) integrates decorative elements like logos, textures, or patterns directly into the part during the molding process, creating a durable, high-quality finish without the need for additional post-processing steps like painting. Plastic Molded Concepts is a U.S based company that uniquely specializes in molding with engineered resins. We have been thriving in the plastic molding business for 45 years. We have the experience and certified in-house Master Molders, allowing us to take on projects of any complexity. Gate size will depend on the resin being used and the size of the part being molded.*The larger the gate, the better and easier it is to make high quality parts.*
If the barrel temperature is too low, the resin is not able to heat up to the proper flow temperature. If the resin is not at proper flow temperature and is pushed into the mold it will solidify before the molecules are properly packed. This causes the molecules to shrink at varying rates which produces mold warpage. Insert molding embeds metal, ceramic, or other materials into a plastic part during the injection process, combining materials to enhance performance. Below, are the top 10 material considerations for overmolding medical devices:SterilizationRadiationHigh HeatChemical ExposureFlame RetardancyImpact ResistanceMelting PointBiocompatibilitySolvent ResistanceCost Injection molding is well-suited for producing thin-walled parts with high dimensional accuracy. Careful control of injection speed, pressure, and cooling time ensures that the final product meets the desired specifications without warping or surface defects. Some of the most common overmolding materials include:HDPEABSPMMA (Acrylic)Acetal Copolymer (POM)PEEKPEIPBTR