Rubber to Plastic Conversions for Cost and Weight Savings


Rubber to Plastic Conversions for Cost and Weight Savings

Recent dramatic increases in the cost of natural rubber has driven interest in alternative materials that can react and perform like vulcanised rubber. Many products requiring rubber-like, elastomeric properties are found in demanding enviromnments. Often, extended exposure to high temperatures and certain chemical fluids can begin to dry-out vulcanized rubber, changing its physical properties to less than original application requirements. If elastomeric properties are required for the application, they are generally needed across a wide temperature range. Vulcanised rubber has a tendency to have wide variations in hardness from extreme hot to extreme cold temperatures. This usually changes the elastomeric performance originally inteneded for the application.

The engineers of Engineered Plastics Company (EPC), a division of MacLean-Fogg Component Solutions,have had great success in helping our customers resolve many of these issues by converting to a thermoplastic elastomer that can be processed on standard injection molding machines. Thermoplastic elasomers act and perform very similar to many vulcanized rubber materials but with some distinct advantages.

The Hood Leveler product we have developed provides a piece price cost reduction and a product performace enhancement as the thermoplasic elastomer demonstrates smaller hardness variation over a wider temperature range. This has helped our customer to achieve no hood damage on low temperture extreme hood slam testing. The old Rubber component often becomes very hard at lower temperatures and loses some of its important energy absorbing properties.


The Hood Isolation Bumper also resulets in a piece price reduction but more importantly, offers regulatory design advantages that the old rubber extruded cut-off profile simply could not meet.

EPC engineers use geometric stiffing to achieve an acceptable performance level in stead of just thicker, heavier walls of rubber, thereby also offering a weight reduction. The design also pleases Styling teams due to the new rounder, smoother look now available thru injection molding. Internal regulatory requirements of having part numbers, company logo, and material reprocessing codes visible on the part all came along at no cost as these elements were now able to be molded into the part at desired locations.  Read more about these products by clicking here.

EPC engineering has decades of experience in materials, tooling, processing and plastics product design utilizing the latest software tools for precise evaluation. Let us help you on your next project with ‘out-of-the-box’ thinking, powerful capabilities and extensive experience to insure your success.

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Friday, April 25, 2014

MacLean ESNA Receives Nadcap Accreditation for NDT (Non Destructive Testing)

MacLean ESNA announces that it has received Nadcap accreditation for Non Destructive Testing. MacLean ESNA received Nadcap accreditation for demonstrating their ongoing commitment to quality by satisfying aerospace and defense customer requirements and industry specifications. The certification comes following significant investments and upgrades in ESNA's on site laboratory at the main Pocahontas, AR manufacturing site. » Continue Reading