A Chinese automobile manufacturer identified an issue with water leaking into the brake light of one of its models, causing short circuits and potentially a fire. The deterioration of the EPDM material originally used to seal around the brake light caused the leakage. As the material aged, its capacity to seal out moisture significantly decreased. Once water entered the brake light housing it flowed downward to the light’s battery located directly beneath the brake light module. At a minimum it would cause a short circuit, in a worst case scenarios it could cause a fire.

The OEM evaluated six options for sealing materials, among them EPDM and rubber. The selected material would have to pass two stringent tests conducted by the OEM; a water-tight test and an assembly test.

The car manufacturer chose Rogers’ BISCO® HT-800 silicone, assured that the material will provide reliable, long-term performance. They also chose to add HT-870, another of Rogers’ silicone formulations, to its material list. Find out more…

Case Study: Rogers Partners with Chinese OEM on Automotive Brake Light Gasket 

Designers can quickly find the silicone material that’s right for their gasketing, heat shield, and sealing applications here: BISCO® Silicone materials.

Rogers Corporation announces an extension of the thickness range for AquaPro® 37™ – the material of choice for long-lasting protection of sensitive electronics and enclosed devices.

Especially well-suited for critical applications in which sealing against water ingress is vital, this softer AquaPro 37 foam is constructed of closed cells with an open cell sub-segment. Working in tandem with hydrophobic raw materials the combination delivers superior water-sealing performance and reliability when compared to traditional sealing solutions, consistent with the high standards of the PORON® family of polyurethane materials.

Available in standard thicknesses ranging from 0.020” to 0.039”(0.50mm to 1.0mm), the AquaPro 37 formulation requires the lowest compression force of any PORON water-sealing material in achieving a tight seal. It performs reliably in a broad temperature range, is low outgassing, and provides dependable water sealing for thin applications – guaranteeing that design engineers never have to settle when a high-performing water seal is required.

In this article, Ken Kozicki from High Performance Foams, shares the real cost of a gasket or seal, which has a much bigger impact than the actual cost of the item itself … especially in a rail car:

More often than not, there is a significant amount of emphasis and evaluation placed upon the selection of the materials used within the more prominent features of the interiors. This includes composite materials for side wall and ceiling liners, seat cushion foams and upholstery, and flooring structures, to name a few.

…what is frequently ignored is the hidden value and importance of the multitude of gaskets and seals that protect, preserve and actually integrate the various interior systems and modules together. While one of the main functions of a gasket or seal is to keep moisture or water from leaking into an undesired place, there are also many other considerations that should go into gasket selection. A great deal of engineering effort is spent determining vibration isolation and damping, acoustic blocking and absorption, as well as contribution to EMI/RFI protection and conformance to flame, smoke and toxicity requirements.

Ken answers questions like:

  • Does the quality of material that seals two expensive wall panels really make a difference?
  • Do you know what a compression set is?
  • Do you know what degradation of force deflection is, and how it impacts a seal?

Download the The Real Cost of a Gasket article.

Introducing the L3 Première: Reduce vibration in rail flooring

The High Performance Foams team recently launched a new product in its BISCO® line of silicone foams called the L3 Première, specifically designed for rail applications.

Employing breakthrough technology, the new L3 Première improves the passenger experience by reducing vibration in flooring constructions. Utilizing L3 Première isolation pads enables a smoother, more comfortable passenger ride especially in high speed rail applications.

Under extreme conditions for temperature and load, L3 Première maintains performance by retaining thickness and performance with low stress relaxation. 20 percent lighter than its L3 predecessor, the durable, long last-lasting material greatly resists compression set reducing the need for costly refurbishments over a railway cabin vehicle’s operational lifespan.

Read the full L3 Première press release.

Download a data sheet.

In case you haven’t seen it, Rogers recently unveiled a whole new web site for our High Performance Foams technology and products.

Why did we do this? Well, we wanted to provide a quick, visual way to share technical and application information about our advanced materials and quickly illustrate how they are being used.

The following sections have been created:

Applications – Highlighting common uses for PORON® Urethane Foams and BISCO® Silicones such as acoustics and vibration, cushioning and pads, sealing
and gasketing and shock and impact absorption

Markets – Sharing how our products are being used in aircraft, automotive, HEV, consumer electronics, electronic enclosures, footwear, medical, rail and sports apparel/equipment.

ProductsBISCO® Silicones, PORON Microcellular Urethanes, PORON Peformance, and PORON Medical Products.

Design Tools – Highlighting the latest design tools including PORON Urethane Gap Filling Tool, Floating Floor Design Tool, HPF Materials Selection Guide, Impact Prediction

Technology – showcasing the latest technology tutorials and white papers

Articles and Tools – sharing the latest from print and online publications and blogs

Let us know what you think! We’d love to hear from you.