Para-aramid pulp (Kevlar Pulp, Taparan Pulp, Twaron pulp, 1414 Pulp) is obtained after surface fibrillation treatment of para-aramid fibers. Its unique surface structure greatly improves the grip of the mixture, so it is very suitable as a reinforcing fiber for friction and sealing products.
Para Aramid pulp is light yellow, flocculent, fluffy, rich in hairiness, with high strength, good dimensional stability, no brittleness, high temperature resistance, corrosion resistance, toughness, small shrinkage, and good wear resistance. It has a large surface area and can be well combined with other substances.
It is a reinforcing material with a moisture regain of 8%, an average length of 2-2.5mm, and a surface area of 8m²/g. It is used as a gasket reinforcement material, has good resilience and sealing performance, and is harmless to human health and the environment. It can be used as a medium seal for water, oil, hydrocarbons, and medium-strength acids and alkalis. The resulting gasket has excellent sealing performance and creep relaxation resistance.
Usually, only less than 10% pulp is needed. The strength of the product is equivalent to 50–60% asbestos fiber reinforced products. Para aramid pulp is used to enhance friction and sealing materials and other manufactured products. It can be used as a substitute for asbestos in friction and sealing materials, high-performance heat-resistant insulating paper, and reinforced composite materials.
People are often looking to deliver products with added strength, higher resistance to heat and chemicals, and consistent internal structures. Because of its unique chemical and mechanical properties, Twaron® pulp addresses many of these market demands.
To help customers find optimal solutions for their specific applications, manufacturers provide both wet and dry pulp in different fiber lengths and with varying degrees of fibrillation.
Para aramid pulp (Kevlar Pulp, Taparan Pulp, Twaron Pulp, 1414 Pulp) can help manufacturers deliver superior strength, stability, and resistance to heat and corrosive chemicals. It is easily integrated into production processes, as its fibrillated nature limits separation and aids the dispersal of other ingredients, delivering extra reinforcement and efficiency where it is needed.
Kevlar aramid pulp offers excellent strength-to-weight performance, improves heat and chemical resistance, reduces product brittleness, and provides versatile, adjustable reinforcement with high fibrillation.
| PROPERTY | SEPCIFICATION | TEST METHOD TAPPI | ||
| Nominal | Low | High | ||
| Canadian Standard Freeness (ML) | 260 | 160 | 360 | T-227 |
| Fiber Length (MM) | -- | -- | -- | T-271 |
| Weighted Average | 1.17 | 0.92 | 1.42 | -- |
| Moisture (%) | 5.0 | 11.0 | T-210 | |
| Bale weight (KG) | 5.05 | 4.8 | 5.4 | -- |
| Bale weight (LBS) | 11.1 | 10.5 | 11.9 | -- |
Para Aramid Pulp helps enhance performance through high-temperature reinforcement and viscosity control. These highly fibrillated fibers are used as specialty additives to provide excellent reinforcement and viscosity control under shear stress.
Kevlar® Aramid Pulp is used in:
As a gasket reinforcement material, para aramid pulp provides good resilience and sealing performance. It is safe for human health and the environment, and suitable for sealing media such as water, oil, hydrocarbons, and medium-strength acids and alkalis.
The resulting gaskets offer excellent sealing performance and creep relaxation resistance. Products reinforced with less than 10% pulp achieve equivalent strength to those reinforced with 50–60% asbestos fibers.
Kevlar pulp and para aramid pulp are widely used in sealing and friction applications, replacing asbestos in demanding environments. Their fibrillated structure improves bonding, strength, and durability in brake pads, gaskets, clutch linings, and industrial seals.
