Metric Felt Co., manufacturer  of industrial textiles and non-metallic base materials
National Rivet & Manufacturing
HomeAbout UsContact UsRequest Quote708.479.7979

Material Specifications   

Roll Felt Sheet Felt Synthetic Fibers


Ask the experts

All fields required

sheeps wool turned into felt


Felt-Wool and Synthetics


Felt bonded to metal strip
Felt bonded to metal strip.


Felt grinding operation
Felt grinding operation


Seamless belts
Seamless belts


Seemless sleeve typically for wiping for coatings and finishing applications
Seamless sleeves are typically
used for wiping, coating,
or finishing applications


Strong and light abrasive non-woven materials are cut for cleaning, polishing, finishing, and deburing operations.
Strong and light abrasive non-woven materials are cut for cleaning, polishing, finishing, and deburing operations.



Typical shock-absorbing anchor methods.


Gasket and various high-temperature materials are cut for a wide variety of applications.
In addition to felts, we die cut other materials for gaskets and a large variety of high-temperature applications.


Typical gasket materials: cork, urethane, and foam.
Typical gasket materials:
cork, urethane, and foam.


Wool Felt and Felted Synthetic Materials

Felt in its many forms can be your best solution for product design challenges.

Wool felt is one of the world's oldest man-made fabrics because it does not require weaving. Instead, it interlocks to form a continuous useful material. Through a process of manipulating, hammering, and steaming, scales on the wool felt fibers engage each other to form a lasting, resilient bond. The natural fibers in wool felt cannot be duplicated in the laboratory. Each wool felt fiber has a flexible microscopic covering of scales similar to the scales on a fish. Wool felt scales are made of keratin, the same tough substance that grows to form horns and hooves on cattle and other animals.


Keratin scales give wool felt fibers several advantages:

  1. They trap air to make excellent thermal insulators.
  2. They are extremely resistant to wear.
  3. They promote capillary action for wicking liquids.
  4. They form resilient bonds to absorb vibrations and shocks.
  5. They facilitate homogeneous penetration of chemical treatments.

Today wool felt material is manufactured to a wide range of specifications:


From .025" to 3.00"


From .08 grams/cc
to .99 grams/cc

Tensile Strengths:

From 75 psi
to 700 psi


Wool felt is amazingly durable

Other Types of Felt

While wool felt is mostly pressed as described above, there are more ways of making it from wool and even some synthetic fibers.

For example, wool and other fibers can be felted in a process called needling . The products of needling are in a category of materials known as non-woven textiles.

Needling is a process that involves working fibers with a bed of needles that engage and disengage the fibers until they become interlocked to form a textile. Wool and a variety of synthetic fibers can be needled to form useful materials in various thicknesses and densities.

A third way of making felt is to form a thread of the fibers and weave them. Woven felts are known for their resiliency and flexibility. Well known applications include game table felts and certain wicking parts.

Typical Applications

Wool Felt Wheels

Felt wheels are available in soft, hard, and rock hard densities for applications ranging from glass to metal surfaces.

Wool Felt Filtration Media

Wool felt can exclude particles down to 0.7 micron.

It is adaptable to virtually any filter configurations. Plugs, accordion-pleated cartridges, sewn bags, and drum heads are among the most common. However, the versatility of felt lends itself to unusual and critical filtration situations.

Wool Felt for Vibration Absorption

Wool felt absorption mounts can reduce the vibrating energy of machines by as much as 85% with proper application. Sensitive instruments can be similarly protected from floor and counter vibrations.

Wool felt used in vibration isolation felt is durable and stable in the presence of moisture, lubricants, greases, detergents, salts, and chemicals. It conforms to uneven surfaces to block unwanted foreign material from the load bearing area.

Wool Felt holds up for years under heavy static and dynamic loads without deterioration. This holds true at low temperatures where some materials become hard and brittle.

Wool Felt for vibration isolating applications is available in various densities and thicknesses for mounting light or heavy loads in the range of 1-to-250 psi.

Sound Absorption

Wool felt absorbs more sound per thickness than other materials making it the leading choice in applications where space is limited:

Synthetic Non-woven Products


<Back | Top | Home