Light Vehicle Products

MCU Components

Micro Cellular Urethane (MCU) components combine maximum performance, high comfort and lightweight versatility. The material provides superior abrasion, tear and chemical resistance along with high tensile strength and a low compression set. It is also resistant to automotive fluids and ozone. MCU components are used for jounce bumpers, spring aids, spring seats, bushings, top mounts, and body mounts.


The automotive industry needs to meet the increasing demand for lighter vehicles while integrating new components, like hybrid drives. As a result, the space available for a vehicle’s spring and isolation elements becomes smaller. Vibracoustic’s engineers work closely with vehicle manufacturers to supply a full range of materials that combine maximum performance within the ever decreasing available space.

MCU helps fulfill these requirements. Similar to a sponge, MCU absorbs energy and isolates noise, yet is strong enough to bear the weight of an entire vehicle. MCU components also offer a low weight, progressive stiffness with excellent long-term behavior when subjected to cold, heat, and the environment.

Vibracoustic offers multiple material and design options, including assembly with dust covers and saturation cups or as part of complete components like top mounts and air springs.

MCU Body Mounts

Locate and isolate the vehicle's body from the frame, while improving the vehicle comfort and handling qualities

MCU Jounce Bumpers

Enable ride tuning, absorb energy from irregular road events, and support vehicle handling requirements

MCU Spring Aids

Absorb energy from road events and support vehicle handling with linear response characteristics

MCU Spring Isolators

Support vehicle weight, isolate rolling noise, and provide even loading of the spring

MCU Top Mounts

Isolate road noise and more effectively react shock loads with high amplitude damping and a long linear rate response