Adhesive wool felt: a technical and versatile solution for multiple industries

Natural wool felt can be used in almost everything the mind is capable of imagining.

Since time immemorial, wool felt has accompanied human beings as a silent ally of comfort and protection against adverse conditions. Evidence dates back thousands of years BC, in Central Asia, the Middle East and Mongolia, where nomadic peoples discovered in this material extraordinary insulating and durable capabilities. They used it as covering for floors, as the walls of their homes (yurts), in clothing, decorations, shields… Over the centuries, felting techniques spread through Europe and later to America, turning wool felt into a prized raw material also for footwear, hats, armour and other accessories. It even defined a style between the 15th and 20th centuries, becoming synonymous with both well-being and elegance and distinction.

Today, wool felt, especially in its self-adhesive version, still offers its unique properties and adapts with extreme versatility to the demanding challenges of today’s world. Automotive, construction, interior design, healthcare, music, sport, etc. are just some of the sectors in which adhesive wool felt is providing technical, sensory, resistant, aesthetic and comfortable solutions… It is a strategic resource that, thanks to its exclusive qualities, helps solve challenges in multiple industries.

• What exactly is adhesive wool felt?
• Key technical properties of adhesive wool felt: advantages for industry
• Applications of adhesive wool felt in different industries
• Sustainability: competitive advantage of natural wool felt
• How to choose the right adhesive wool felt?

What exactly is adhesive wool felt?

Adhesive wool felt is designed to offer greater efficiency and simplify installation in technical, decorative and industrial settings. We manufacture it respecting the principles of the authentic traditional process while at the same time incorporating advanced technologies that make it possible to control its unique attributes and guarantee maximum quality.

• Each piece of felt is made of carefully selected 100% natural wool fibres, which are homogenised, aligned, consolidated and conglomerated through extremely precise mechanical processes (mixing, carding, felting, fulling…), combining pressure, moisture and heat, plus repetitive compaction cycles that guarantee a resistant structure. This is achieved thanks to the unique physical property of sheep’s wool: the microscopic scales on its surface (cuticles), which are capable of interlocking in the presence of moisture, heat and friction.
• On its reverse, a high-performance adhesive layer is added, normally formulated to withstand demanding conditions, such as exposure to high temperatures or high humidity.

This results in a strong, cohesive, durable, uniform felt that is extraordinarily resistant, soft to the touch and “ready to use”. It is a material that combines the functional richness and intrinsic versatility of natural wool with the practicality of a self-adhesive backing that allows simple and durable fixing on various surfaces: glass, wood, metal, polymers, etc.

And it is this fusion that turns adhesive wool felt into a valuable, adaptable resource that is highly appreciated in multiple scenarios. For example, to seal, insulate and cushion in industrial processes; to cover acoustic panels and other elements in interior design or construction projects; to absorb vibrations or protect machinery surfaces…

Specifically, adhesive wool felt:

• Allows quick application.
• Eliminates or minimises the use of mechanical fasteners.
• Offers reliable and durable adhesion, even under pressure or heat.
• Supports different levels of adhesion, depending on its purpose.

Key technical properties of adhesive wool felt: advantages for industry

Felt is a non-woven textile matrix manufactured in various densities and, as it is made up of millions of individual natural wool fibres (mixed, felted, compressed …), it offers almost permanent resilience.
Its most outstanding and valued properties are the following:

• Cushioning. Its ability to absorb impacts and its elasticity allow it to withstand static and dynamic compression stresses without deteriorating. Felt has a molecular structure that allows it to stretch without deforming and to recover its original shape.
• Vibration insulation. Wool felt can reach an efficiency of up to 85% in isolating vibration energy. For example, if the appropriate densities and thicknesses are selected, felt can reduce the vibration energy that a machine transmits to its base.
• Moisture and liquid absorption (hygroscopic). Wool felt is durable and stable in the presence of oils, greases, lubricants, moisture, detergents, salts and various chemical products. It can easily absorb moisture up to ⅓ of its weight without losing its insulating capacity. It can also absorb water and then release it slowly. For example, it serves as a soaker or retainer of liquids or oils in industrial equipment.
• Compatible with industrial processes. Felt can be cut, die-cut and sewn with relative ease, without losing integrity or texture.
• Acoustic absorption. Its complex, unique, three-dimensional internal structure, almost magical, with curly and interlaced fibres that create interconnected paths, allows wool felt to trap and dissipate sound waves to an exceptional degree. It is especially useful for controlling sound reverberation at mid and high frequencies, where human speech and shrill noises, respectively, are perceived.
• Temperature regulation. Wool fibres have a curly structure that creates tiny chambers that trap air. This provides a sensation of comfort in both cold and warm climates.
• Sustainability. It is a natural, renewable and biodegradable fibre that respects the environment and the aesthetic of each project.
• Durability. Technical wool felts do not fray, and they maintain their integrity and functionality even in applications under friction or repeated impacts. They preserve their elegance over time.
• Functional versatility. It is used for sanding, polishing, cleaning, sealing, covering… in joints, seals, filter media, decorative supports, etc.
• Aesthetics. Wool felt has a natural and elegant presence. Its flexible body adapts smoothly to shapes and surfaces. Its volume and texture provide authenticity, visual depth and multiple finishes with unique tactile sensations. At the same time, its fibres are capable of reflecting light subtly, creating warm chromatic nuances that enhance the aesthetics of any environment.

  And if the project requires a custom solution? At Textil Olius we specialise in the technical customisation of natural wool felts for any application. We adapt specific densities and thicknesses, create the colour shade you need and apply advanced functional finishes: water-repellent, fire-retardant, anti-static…

Download the catalogues of technical felts, 100% wool felts or the A270 catalogue.

Applications of adhesive wool felt in different industries

Adhesive wool felt is a material that optimises operations, improves the technical performance of systems, adapts to irregular surfaces and boosts the performance of applications and elements in demanding environments.

Automotive

Adhesive wool felt acts inside vehicles as an invisible guardian of comfort. It can reduce vibrations and harshness, absorb noise and improve thermal insulation. It is a material that enhances the driving experience by offering smoothness and quietness.

Construction

The versatility of adhesive felt allows it to be used in construction phases and provides comfort and visual harmony to the finished work. It is mainly used for controlled acoustic and thermal insulation, in seals against air infiltration, protection of finishes, dust collection and floor polishing.

It helps keep homes warm in winter and cool in summer. It is a natural fibre that is highly resistant to fire and can absorb harmful and odorous substances.

Interior design

Adhesive wool felt combines aesthetics, functionality and ease of use. Its texture, its sound and thermal insulation capacity, its sophisticated finish and its extensive colour range can transform any space into a true sensory sanctuary. It is a material that adapts to modern and classic styles, integrating sustainability, sophistication and agility in installation.

Medical and orthopaedic sector

Adhesive wool felt is a gentle yet firm support that provides comfort and breathability. Its ability to regulate moisture and its great softness to the touch make it an ideal material for cushions, pads, insoles and orthopaedic supports.

Music

Felt has historically been an ally of music. It is essential in the manufacture of pianos and percussion instruments, as well as in conditioning the acoustics of rooms. Its adhesive layer simplifies replacements and adjustments. It is a material that silently controls acoustic resonances, dampens unwanted vibrations and provides stability to instruments.

Industrial machinery components

In industrial environments, adhesive wool felt mainly plays roles in sealing, controlled lubrication, surface protection and vibration damping in various machines and equipment. Thanks to its high damping factor, it is useful for reducing the amplitude of vibrations.

Textile and fashion industry

Beyond garment making, adhesive wool felt has strategic technical applications in production, finishing of footwear and accessories and in integrating aesthetic details. It brings sophistication, sustainability and durability to the final product.

Sport

Sport requires materials that protect, cushion and, in some cases, manage lubrication or moisture. Wool felt offers a firm, soft and resistant texture, without sacrificing mobility.

Electronics

In electronic equipment, appliances and casings, felt is used to insulate, seal and protect against vibrations and shocks. In addition, it can be used as a lubricating mechanism in joints to avoid friction and noise.

Sustainability: competitive advantage of natural wool felt

Wool is a natural, renewable and biodegradable fibre with exceptional properties, positioned as a sustainable and higher-performance alternative to various synthetic polymers.

At Textil Olius, all our wool felts are certified under the OEKO-TEX Standard 100 label, guaranteeing the absence of harmful substances. Our processes and dyes are environmentally friendly. Sustainability and quality are pillars in every stage of production.

How to choose the right adhesive wool felt?

Choosing wool felt correctly requires evaluating technical and aesthetic parameters to ensure maximum performance in the final application.

Key factors to consider

Before requesting the production of wool felt, we recommend considering the following technical specifications:

• Thickness. We offer wide customisation in wool felts, from 0.8 mm to thicknesses greater than 30 mm, depending on the required degrees of compression, cushioning and acoustic or moisture absorption.

• Density. The optimal density of wool felt depends on each use case. At Textil Olius we adapt the density of the felt to the technical, aesthetic or structural requirements you need, up to 500 kg/m3.

• Functional finishes. Depending on the environment and the demands of the project, we can provide our felts with various finishes that give them other special properties: fire-retardant, water-repellent, stain-resistant, anti-static, mothproof, non-slip, anti-pilling, anti-mould, etc.

• Colour and aesthetics. At Textil Olius we have an extensive chromatic diversity for unlimited creativity. Our dye laboratory allows us to offer any colour the client needs, from natural and soft tones to the boldest and brightest ones. For interior design projects, accessories, garments, footwear, orthopaedics, etc.

• Composition. Only natural wool or wool blended with other fibres. We adapt to all applications and needs of modern industry.

Consulting a specialised manufacturer

At Textil Olius we analyse each requirement to offer 100% customised wool felt solutions, with or without adhesive.

We are backed by a 173 year track record of manufacturing and innovating in the world of natural wool felt.

Our felts are produced under strict control to ensure safety, traceability and compliance with international quality standards. Our OEKO-TEX Standard 100 certification proves it. That is why we serve demanding industrial sectors. We export to more than 40 countries.

Request information. Our technical team will advise you on the characteristics of the wool felt that is most suitable for making your project a success.

More than 170 years manufacturing. Always wool felt, always Textil Olius.

Textil Olius

Manufacturers of natural wool felt for applications across different industries. We export to over 40 countries.

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