A parts manufacturer requested a new seal design to help eliminate under-hood noise.
The seal was vitally important to the engine cooling system, which helps regulate the engine temperature and ensures optimum performance.
Push-pin seals provide an alternative to standard laminated seal methods for applications such as hood to cowl, door frames and more.
In this particular application, the push-pin seal was the ideal choice to allow for easy assembly and installation.
The hood substrate was not adhesive friendly due to the low surface energy levels. Surface treatment for lamination was not economical due to the cost of preparation and labor.
Engineers designed the seal from dense EPDM with an excellent compression set to ensure the seal will maintain its shape and orientation through continual opening and closing of the hood.
Alternative to clip-on seals
Lauren engineers have also designed an automotive door frame push-pin seal for a heavy equipment manufacturer to eliminate door damage caused by the current clip-on seal.
The seals are are bonded together by dense molded corners that contain stuffer plugs to prevent the seal from collapsing as the door is open and closed. .
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Customers using push-pin seals from Lauren receive pins that are spaced according to their measurement requirements.Stuffer plugs also allow for material thickness consistency throughout the entire seal for proper performance. This seal was not only easy to install, but included the complete value-added package that met all customer requirements.
Once the proper measurements are in place, matching punched holes with the push-pins allow for a quick and efficient installation process.
Depending on the customer’s process and/or application, push-pin seals are capable of being a replacement solution to the standard laminated seal as well as other sealing methods.