Reliable sealing plays a crucial role in the performance and life span of today’s portable devices, especially those exposed to harsh environments.
For this reason, the sealing component should be considered in the early stages of product design to ensure the optimum product is specified for the job.
When using a foam component to act as the seal, product teams should select a material to meet the fluid ingress resistance and mechanical requirements of the application.
We’ve put together some key considerations to assist in choosing the right material in your water tight seal design:
What environment/conditions will the device be exposed to?
Will the seal need to resist UV, oil, dust, debris, chemical contamination and temperature extremes?
Will these conditions be occasional or constant?
This will determine the performance requirements of the product.
Understanding the above factors will assist in specifying the right material for your sealing component.
You should also consider a material’s conformability, thickness and firmness, as well as its cell structure. In general, a closed-cell foam is most effective in waterproof seals, however, some open-cell products do offer a good level of sealing, such as Poron® foam and some VHB™ tapes.
For over 45 years, Parafix has designed and manufactured custom sealing solutions for a range of portable devices, including mobile phones, military communications equipment and handheld measuring and sensing devices. Our experienced team can advise the optimum material for your application and our rapid prototyping service allows for testing the effectiveness of your designs.
Get in touch today to discuss your device sealing needs.