A Unique Material with Widespread Applications

Rogers PORON Harmony is a closed-cell polyurethane foam that provides an unmatched combination of properties that make it suitable for a wide variety of applications. Some key features of PORON Harmony include:

Excellent Cushioning and Shock Absorption

PORON Harmony has outstanding cushioning and shock absorbing capabilities, making it ideal for use in footwear, athletic equipment, automotive seating, and anywhere impact absorption is needed. The closed-cell structure allows the material to compress and spring back readily when force is applied.

Noise and Vibration Dampening

The cellular structure of PORON Harmony is very effective at dampening noise and vibrations. This makes it useful for acoustical insulation in appliances, machinery, and automobiles. The material helps block outside noise while absorbing vibrations.

Thermal Insulation

PORON Harmony provides good thermal insulation, helping retain heat in cold environments and block heat transfer in warm environments. This property can be leveraged for apparel linings, temperature-controlled shipping containers, building insulation, and other applications where controlling heat flow is important.

Lightweight

Despite its cushioning ability, PORON Harmony is remarkably lightweight. This helps reduce product weight in applications like footwear, equipment padding, and automotive seats. The material weighs about half as much as rubber foam with comparable properties.

Low Compression Set

PORON Harmony resists permanent compression very well, even under sustained loads and repeated impacts. Parts made from the foam tend to retain their original shape and cushioning properties over years of use and abuse.

Chemical and UV Resistance

PORON Harmony stands up well to exposure to many chemicals like oils, solvents, and cleaners. It is also resistant to UV radiation, allowing it to be used outdoors without degrading quickly.

These properties make Rogers PORON Harmony an ideal choice for:

• Protective gear like helmets, pads, guards
• Footwear components – midsoles, insoles, heel pads
• Automotive seating and interior trim
• Sporting goods – grips, padding, balls
• Acoustical and thermal insulation
• Medical devices and prosthetics
• And many other applications!

Rogers PORON Harmony Grades Offer Design Flexibility

Rogers offers PORON Harmony in a range of grades and formulations to meet the needs of different applications:

Grade	Hardness	Key Features	Typical Uses
4701-50	50 Shore 00	Maximum shock absorption and cushioning. Low compression set.	Footwear midsoles and insoles. Protective gear. Medical pads.
4701-55	55 Shore 00	Enhanced comfort and support. Retains shape and resists packing out.	Footwear components. Knee pads. Automotive seating.
4701-60	60 Shore 00	Firms support with good shock absorption. Low compression set.	Automotive seating and armrests. Grips. Hand tool handles.
4701-70	70 Shore 00	High support and resilience. Retains shape.	Automotive trim and components. Sporting goods.
4701-90	90 Shore 00	Maximum support and shape retention.	Automotive knee bolsters. Football helmet liners.

This range allows designers to select the ideal hardness, cushioning, and compression properties needed for their specific application. Rogers can also formulate custom grades of PORON Harmony to meet unique performance requirements.

Innovative Production Process Yields Consistent Quality

Rogers employs an advanced proprietary production process to manufacture PORON Harmony. The liquid urethane components are mixed under high pressure then injected into temperature-controlled aluminum molds. The reactants quickly foam and cure into the familiar closed-cell structure.

This fully automated process tightly controls the cell formation and curing conditions, resulting in very consistent density, physical properties, and performance. Customers can rely on receiving material with uniform characteristics from batch to batch.

The flexible manufacturing process also allows PORON Harmony to be made in a wide range of shapes, sizes, and thicknesses. Common forms include bunstock blocks, rolls, and complex molded shapes. This allows the material to be easily integrated into customers’ products and manufacturing workflows.

Rogers Offers Full Design and Technical Support

Rogers Corporation has over 50 years of experience working with polyurethane foams and other advanced materials. Their staff of engineers and technical experts are available to support customers throughout the design and manufacturing process.

Some of the services offered include:

• Material selection assistance
• Design for manufacturability reviews
• Prototyping and feasibility studies
• Fabrication and assembly recommendations
• On-site process support
• Material testing and analysis

Leveraging Rogers’ knowledge and capabilities helps ensure that PORON Harmony performs up to its potential in the final product design.

Frequently Asked Questions

What temperature range can PORON Harmony withstand?

PORON Harmony can perform well in temperatures from -40°F to 200°F (-40°C to 93°C). The material does not melt but can soften slightly above 160°F (71°C).

Does PORON Harmony require any special care or maintenance?

PORON Harmony is relatively easy to care for. It can be wiped clean with mild soap and water. Solvents and cleaners should be tested on a small area first. Avoid sharp objects that could cut the foam.

Can PORON Harmony be die cut or machined?

Yes, PORON Harmony can be readily die cut, water jet cut, or machined using common methods for foam materials. Complex shapes and assemblies can be fabricated.

Is PORON Harmony available in custom colors?

Yes, Rogers can provide PORON Harmony in a wide range of custom color options. Both solid and two-tone colors are possible by using colored urethane systems.

Does PORON Harmony contain latex or other allergenic ingredients?

No, PORON Harmony is formulated without latex, rubber, or other common allergens. Polyurethane foams are generally considered hypoallergenic.