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Tensile Test on Rubber
British Gaskets are a major manufacturer of gaskets, sealing products and mouldings. These are made from a variety of materials to suit a range of applications. British Gaskets required a test system to ensure the rubber and polymer materials Neoprene, Viton, EPDM and Silicone meet their quality
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Tight seals for the long haul
hardware such as roof racks and antennas also need weathertight seals around mounting or access holes. Watershield gaskets in doors are another example. These gaskets must deflect water from the dry side of the door to weep or drain holes located at the door base on its wet side. A few rating factors
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Sizing up Hinges
, this translates to a 720-lb force simply to seal the door. Another option for NEMA-4-compliant sealing is a bubble-type seal where the seal is created through bending of a relatively thin rubber layer as opposed to compression of a monolithic foam. Bending a bubble-type gasket to create a secure seal
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Sealing Challenges For The Medical Industry
in making elastomeric seals for medical devices. In some instances, it mandates that manufacturing be done in rooms with positive pressure to keep out contaminates. In other cases, medical seals must be fabricated in "rated" clean rooms. After manufacturing the rubber seal, it must be handled
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Seven Versatile Sealing Materials
of applications, including outdoor use. For instance, products made with rubber-thermoset EPDM, or EPDM-based thermoplastics, are used as primary and secondary door seals, seals for trunk lids, sunroof seals, "gimps" or gap fillers, boot covers, hose insulators, and seals for lights and HVAC systems
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Polymers For Sealing
tried to keep up with the fast pace of developments in semiconductor manufacturing. Advanced analytical techniques have yielded novel seal geometries and rubber compounds with improved thermal, chemical, and cleanliness properties. There are a vast number of polymer choices available today
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Simulation Replaces Prototyping
technique accounts for rigid-body door motion, extensive deformation of the rubber seal, and the door's modal oscillations. Global as well as Rayleigh damping were also used. Stress outputs from the FEA became inputs for LMS durabilitysimulation software, which converted localstress histories
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Give glue a go
lifts to the top of the service bodies. 4-Star Trailers, Oklahoma City, extensively tested the strength of bonded joints in its custom horse trailers. 4-Star built two doors. One was a traditional welded frame door that employed double-sided tape and rivets to hold the outer panels in place