transportation-rubber-moldingAs winter weather approaches and takes hold in many parts of the country, our thoughts turn to transportation, aviation, electronics and avionics. From ships to trucks to trains to aircraft, silicone rubber molding enables safe operation of a wide range of vehicles in chilly temperatures and inclement weather. Its ability to separate and protect machinery and electronic systems from moisture and extreme temperatures is one reason it is used in the latest designs for transportation technology.

Moisture Separation

Mixing water and electronics usually has a poor result, prompting new designs with silicone rubber molding to provide separation between moisture and equipment. Operating aircraft, ships and trains in the rain, sleet and snow isn’t new, but the effectiveness and longevity of moisture barriers have seen great strides with new technology. Rather than using heavy metals and brittle plastics, silicone rubber molding provides a solid moisture barrier that won’t rust or shatter after continual exposure to water. Liquid silicone rubber molding can take nearly any shape as a moisture barrier, from flat and square to ridged and asymmetrical. When properly integrated into a new product design, silicone rubber components protect electronic systems in aircraft, ships, trains and vehicles in the most rugged conditions.


Silicone rubber tubing creates a protective barrier for foil elements, covering everything from electronic parts to air intakes. It can provide insulation resistance to measurements greater than 100 megaohms at 500 Vdc. It can handle operating temperatures from -45 degrees F to greater than 450 degrees F. No matter how cold it gets, silicone rubber molding components provide insulation to allow engine components, computer boards and other elements to work effectively and provide transportation business as usual. Interior lining for panels and heater boxes made from silicone rubber prevents mechanical parts from seizing up due to frigid operating temperatures.

Gasket and O-Ring Protection

Metal joints in cold, wet and snowy weather need protection to keep functioning in inhospitable and rugged conditions. Consider integrating silicone rubber molding components in metal-on-metal applications, such as door hinges, levers and handles. From gaskets to O-rings, the extra layer provides a shield from friction and minimizes impact. It also prevents cold air from penetrating travel compartments. Imagine the difference between an airtight, cozy aircraft cabin and one with cold drafts.

Drainage Plugs

For outdoor areas in transport, such as the bed of a tractor-trailer or a ship’s deck, the use of custom rubber molding plugs provides versatile drainage options. Rain and melted ice can add weight and create hazards. According to the Farmer’s Almanac, one gallon of pure water weighs about 8.3 pounds. A cubic foot of water weighs about 62.4 pounds. Pulling drainage plugs strategically placed in flat surfaces allows a quick solution to pooling water for proper maintenance and higher safety standards.

At SiTECH, we provide silicone rubber molding components for transportation. New technology and new designs are constantly created to make air, sea and land travel safer and more efficient, especially in winter weather. We provide the parts made from high quality silicone rubber to meet the needs of these and other design specifications. Contact our office for more information or a quote for your next transportation project.