Compression Molded Polyethylene Rubber Sheet

Typically compression molding machines open along a vertical axis.

Compression molded polyethylene rubber sheet.

A precise amount of unvulcanized rubber compound is somewhat pre formed and placed onto the lower half of the tool in the cavity. It is an ideal process for making parts that have intricate features require very defined part geometry have varying wall thicknesses or need to be held to critical dimensional tolerances. Unlike injection molding the objective of compression molding is to produce test specimens or sheets that are both homogeneous and isotropic. A combination of heat and pressure is used to press the rubber into the mold and the product is then left to cool.

Compression molding is a common process used for both thermoplastic and thermoset stock shape materials. Sheets are either sold as is with a thickness tolerance of 10 or planed to the desired thickness. Specimens can be molded from powder or pellets such as are received directly from a material manufacturer particles produced in a recycle recovery operation or from a milled preform or sheet prepared. Transfer molding combines the advantages of injection molding with the ease of compression molding.

If you need custom molded rubber we offer three processes to efficiently and affordably produce parts in nearly any material or color you need. As long as a professional operator uses a high quality material oversees the rubber molding process and relies on a state of the art machine you can expect perfection in the finished product. Custom rubber molding to meet your needs and exceed industry standards. Compression molding is our most frequently used rubber molding process and involves placing sheets or pieces of cold preformed rubber over a heated mold.

Once cured the molded part or component gets ejected from the mold cavity in the shape and size that you need. Compression molding is a forming process in which a plastic material is placed directly into a heated metal mold then is softened by the heat and therefore forced to conform to the shape of the mold as the mold closes. Rubber compression molding defects. Rubber transfer molding.

Rubber transfer molding is an ideal process for molding parts that require multiple cavities intricate parts that require a closed mold bonding rubber to metal parts and if the geometry of the. These materials are not able to be extruded at this thickness and must be molded to be made. Compression molding is a process flextech utilizes for the manufacturing of three dimensional molded foam and foam composite parts. The process is someone similar to making waffles.

Compression molding is utilized for hdpe pp hmw and ldpe sheet for thicknesses of 1 1 2 and above. Traditional compression molding involves a two part tool containing one or more cavities for the finished part.