The Official Blog of Polymer Technologies, Inc.

Acoustic concerns

Next-Generation Rail Car Interiors: Acoustic, Thermal, and Vibration Control

Empty Modern Train Interior with Orange Passenger Seats and Aisle View

Rail car interiors have to do more than look modern. Passengers will notice how much noise reaches the cabin, how much vibration travels through the floor and panels, and how comfortable the space remains throughout the trip. For rail OEMs, those expectations have to be balanced against weight, available space, and material requirements. Refurbishers face … Read more Next-Generation Rail Car Interiors: Acoustic, Thermal, and Vibration Control

Acoustic and Thermal Foam Solutions for Next-Generation Smart Appliances

A person's hand shown about to hit start on washing machine.

Smart appliances are expected to do more while blending naturally into the home. Consumers want connected features, efficient performance, and operation that feels refined. A washer that shakes during a spin cycle or a refrigerator that produces a noticeable hum can quickly undermine the user experience, even when the technology inside performs as intended. Managing … Read more Acoustic and Thermal Foam Solutions for Next-Generation Smart Appliances

Acoustic & Thermal Solutions for Electric Marine Propulsion Systems

overhead view of a marine vessel with solar panels

Electric motors can reduce much of the noise associated with combustion-driven propulsion, but they do not completely eliminate acoustic or vibration challenges. Supporting equipment and motor mounts can still transmit vibration and noise through the vessel structure. For marine OEMs, that means the design challenge is changing. Engineers must manage the remaining noise and vibration … Read more Acoustic & Thermal Solutions for Electric Marine Propulsion Systems

Managing Heat and Noise in Electric Emergency Vehicles: Insulation Strategies for OEMs

A blurred ambulance races through the bustling streets of New York City, a beacon of hope and help in times of need.

The electrification of heavy-duty and emergency fleets is accelerating. Today’s Original Equipment Manufacturers (OEMs) are engineering electric fire trucks and ambulances that deliver instant torque, zero emissions, and the potential to power heavy life-saving equipment directly from the vehicle’s battery grid. However, removing the roar of a traditional diesel engine doesn’t mean the engineering challenges … Read more Managing Heat and Noise in Electric Emergency Vehicles: Insulation Strategies for OEMs

Cab Noise Reduction in Tractors and Earth-Moving Machines

View of a field from inside the cab of a tractor.

As the heavy equipment industry moves towards operator-centric design, the internal environment of the cab has become a primary differentiator for Original Equipment Manufacturers (OEMs). For the operator spending ten to twelve hours a day behind the glass, the cab is more than a control center, it is an office. When that office is subject … Read more Cab Noise Reduction in Tractors and Earth-Moving Machines

Taming Engine Noise in Boats and Personal Watercraft with Custom Molded Foam

Man operating personal watercraft in the open water.

Recreational boats and personal watercraft are designed to deliver excitement on the water, but the engines that power them often create a different experience: excess noise, vibration, and heat. For OEMs of marine and recreational equipment, managing these factors is essential to improving user comfort and maintaining product reliability.  Custom molded polyurethane foam provides an … Read more Taming Engine Noise in Boats and Personal Watercraft with Custom Molded Foam

Acoustic Foam Solutions for Creating Smarter, Quieter Medical Devices in 2026

female patient using a portable oxygen concentrator for a respiratory therapy

Learn how the design in medical devices is evolving for more in-home use and how this affects noise and thermal insulation. Topics explored will include the following: How medical devices are becoming smarter, smaller, and more portable to meet patient and provider needs. Why miniaturization and smart features could make products louder and even more … Read more Acoustic Foam Solutions for Creating Smarter, Quieter Medical Devices in 2026

Why Surgical Smoke Evacuation Is Mandatory and How to Manage Device Noise

Surgical equipment can sometimes emit smoke, having a proper device to perform surgical smoke evacuation is a must.

Key Takeaways from This Article: You will learn the importance of surgical smoke evacuation for ensuring a safe OR. Why it’s important to also account for acoustics when deciding which surgical smoke evacuation solution is best. The power of molded foam parts in reducing the noise volume in your OR when performing an surgical smoke … Read more Why Surgical Smoke Evacuation Is Mandatory and How to Manage Device Noise

Insulation Materials for Better Sound and Vibration Control in Modern Appliances

A barista pours a shot of espresso into a blender for a frozen drink in a busy cafe environment.

In this article, we will explore the following topics: Why modern appliances, especially those designed for commercial use, can create excessive noise and vibration for operators and customers. How certain acoustic materials, including melamine and hydrophobic melamine foams, are used to absorb airborne sound. Vibration damping materials can also help prevent resonance. When custom molded … Read more Insulation Materials for Better Sound and Vibration Control in Modern Appliances

Engineering Custom Foam Solutions for Smarter, Quieter Medical Devices

A CPAP machine sits on a bedside table waiting to be used.

For CPAP patients, a good night’s sleep is essential. However, the very device designed to aid breathing can be a source of disruptive noise. This illustrates a key challenge for medical device engineers: beyond pure function, devices must be compact, efficient, and user-friendly. Relying on off-the-shelf materials often necessitates difficult compromises among acoustic performance, thermal … Read more Engineering Custom Foam Solutions for Smarter, Quieter Medical Devices