Kevlar Pulp - 5kg Bale

• High performance filler material for brakes, composites, epoxies and resins.
• Lightweight with exceptional abrasion resistance.
• When used as a filler, provides enhanced viscosity control, stability, strength and ease of use.
• Genuine DuPont Kevlar® Pulp 979.

DuPont Kevlar Pulp is a lightweight, high strength fibre that is used as a filler and reinforcement material in a wide range of applications. Supplied as loose fibres, Kevlar Pulp exhibits all the characteristics that this material is known for including very good abrasion resistance, physical strength, temperature resistance and more.

Our Kevlar Pulp is manufactured with 100% genuine DuPont Kevlar Fibre and provides consistent, reliable performance.

This engineered fibre offers several benefits depending on where and how it is used. These include:

Making Stronger Brake Pads & Clutches.

One of the most common uses for Kevlar Pulp is serving as an additive for automotive brake pads, clutches and parts subjected to high amounts of friction. DuPont Kevlar helps improve the performance and durability of these components and is used in a wide variety of vehicles from passenger cars and light trucks through to professional race cars.

Clutches.

Kevlar® Pulp is highly effective in clutches, which are subject to sever frictional stress. Tests carried out over the years by DuPont have shown that clutch linings with Kevlar do not require servicing of replacement as often as standard clutch linings.

Brake Pads.

Brake Pads made with DuPont’s Kevlar Pulp are better equipped to withstand the wear and tear that friction generates. These brake pads have enhanced thermal stability and inherent resistance to abrasion. This means brake pads reinforced with Kevlar Pulp are designed for long life and safe, quiet braking.

As an additive for Adhesives, Sealants and Resins.

Another area that Kevlar Pulp Fibres are widely used is the modification, filling and reinforcement of adhesives, sealants, epoxies and various types of resins. In these applications, the inherent nature of Kevlar offers a series of benefits.

These are expanded on below and described in far more detail on the Kevar® Pulp in Adhesives, Sealants, Coatings and Fibre-Reinforced Plastics (FRP) Info Sheet.

Better Control Over Viscosity and Costs.

When working with adhesives, coatings or making fibre-reinforced plastics, Kevlar provides both improved control over viscosity and lower costs.

Kevlar is a fibrous thixotrope. It thickens or builds viscosity through the random orientation and physical entanglement of fibres and tiny fibrils. Under shear, these fibres align, and the material thins. This built-in thixotropic mechanism provides superior viscosity control that is unaffected by processing or aging.

Since Kevlar is such a strong performance, you need significantly less to achieve thixotropic properties equivalent to those provided with other materials such as fumed silica. This helps to reduce costs and speed up production.

Unmatched Reinforcement.

Kevlar is a high-performance, engineered short-fibre. It reinforces the matrix in which it is dispersed and compounded. The table below provides a summary of how low levels of Kevlar Pulp significantly improved the tensile strength, modulus and tear strength of both a PVC plasticised adhesive and a standard, RTV silicone sealant.

The data in the above tables was obtained by first normalising a control sample to 1.0 (the values with zero Kevlar). The test was then calculated as a ratio to the control.

Excellent Heat, Aging and Chemical Resistance.

Kevlar® is ideal for a wide range of temperatures, from cryogenic up to 350°C (662°F).

It has excellent resistance to a wide range of chemicals and organic solvents. Exceptions are hot concentrated acids and bases.

Kevlar Pulp maintains its viscosity building properties indefinitely due to the physical nature of the fibre and its thixotropic mechanism. The benefits of this superior resistance to aging are increased shelf life and very consistent performance. In contrast, fumed silica loses its effectiveness as a thixotrope over time.

Numerous Other Benefits & Features.

Kevlar Pulp continues to be used in the manufacture of all kinds of high-performance materials, composites and parts. It is selected because of its consistent performance, wide range of capabilities and ease of use. Some of the other benefits this engineered fibre provides include:

• Excellent resistance to temperature changes.
• Resistance to processing.
• Safe for the environment.
• Higher film builds for coatings.
• Increased chip and scratch resistance.
• Excellent sag resistance during lay-up or spray-up of FRPs.
• Increased reinforcement in polyurethanes.

For more information on these (as well as information on how to use Kevlar pulp to reinforce your adhesives, coatings, resins, epoxies or composites), please see DuPont’s Kevar® Pulp in Adhesives, Sealants, Coatings and Fibre-Reinforced Plastics (FRP) Info Sheet or, contact us for more information.

Kevlar® is a DuPont registered trademark.