Woven and non-woven fabrics


Organic non-woven fabric with excellent flame retardancy

LASTAN™️ has higher flame retardancy than most other organic non-woven fabrics. Even in case of fire, LASTAN™️ does not easily burn and blocks heat as well as flames due to various post-processing methods applied to it. With its soft and supple texture, it is highly regarded as an optimal material that meets the needs related to disaster prevention, safety, and industrial materials.


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Woven and non-woven fabrics


Product Q&A


QWhat is the heat resistant temperature of LASTAN™️?

A At around 300°C, the fabric gradually deteriorates while retaining its original shape. However, it does not burn and shields flames.

QCan post-processing be applied to LASTAN™️?

A LASTAN™️ is a flexible material like wool, although it is flame-retardant. Compared with inorganic fiber such as glass fiber and silica fiber, it excels in processability. Combining LASTAN™️ with other materials can lead to the creation of new performance. Therefore, it can be post-processed according to the intended application.

QWhat types of LASTAN™️ do you provide?

A LASTAN™️ is roughly classified into two types: Non-woven fabric and woven fabric. Please use the desired LASTAN™️ depending on the intended application.

QFor what applications is LASTAN™️ used?

A It is mainly used for welding spark protection sheets (spatter sheets). In addition, it is used for fireproof curtains and heatproof suits.

QFor what applications is LASTAN™️ non-woven fabric used?

A It is mainly used for home appliances, railways, and vehicles. These applications include flameproof materials for household appliances, flameproof materials for air conditioners, insulation around engines, and fire resistant sound absorption materials for railways. For home appliances, LASTAN™️ contributes to preventing ignition from familiar home appliances such as air conditioners, vacuum cleaners, washing machines, and coffee makers.

QDoes it have insulation performance?

A LASTAN™️ has electrical insulation property and can be used as flameproof materials for household appliances.

QDoes it have thermal insulation properties?

A The fabric of LASTAN™️ does not have thermal insulation properties. However, its felt structure creates air layers, enabling it to be used as heat-resistant insulators.

Q How long can it be used?

A The deterioration of the fabric depends on the usage environment and the distance from the heat source. The fabric gradually deteriorates in an extreme temperature environment.

QWhat is the upper-temperature limit of LASTAN™️?

A As a welding spark protection sheet (spatter sheet), it can withstand the temperature of molten iron which is about 1300℃.

LASTAN™️ is a light-weight, flame-retardant non-woven material ideal for preventing thermal propagation of lithium-ion batteries (LiB).

LASTAN™️ is a light-weight, flame-retardant non-woven material ideal for preventing thermal propagation of lithium-ion batteries (LiB).


Flame retardancy

Fabrics with an LOI (limiting oxygen index) of 26.5 or higher are said to be self-extinguishing, and fabrics with an LOI higher than the above are called flame retardant fabrics. LASTAN™️ has an LOI much higher than the standards. It is a non-flammable non-woven fabric that never burns in the air. Regarding the UL94 Standards which indicate the flame resistance of materials, LASTAN™️ has obtained the highest level, 5VA. It is the most suitable base fabric and surface material for high-performance functional materials that meet various flameproof and fire-retardant standards.


Heat resistance

LASTAN™️ is highly heat-resistant to retain its original shape without burning, melting, and shrinking even when it comes into contact with fire. LASTAN™️ has obtained a "non-combustible" certification after Material Combustion Test for Railroad Vehicles, which evaluates the non-combustibility performance of materials used for railway vehicles. Regarding measures against railway vehicle fires, a section of technical criteria related to railways which are specified in a Ministerial Ordinance issued by the Ministry of Land, Infrastructure, Transport and Tourism stipulates as follows: “The body of passenger cars shall be built with the appropriate structure and materials so that they can prevent prospective fires from starting and spreading."
LASTAN™️ is used as a heat-resistant material for railway vehicles because of its nonflammability property.


Excellent processability

Traditional inorganic fiber such as glass fiber and aramid fiber has a hard texture. On the other hand, LASTAN™️ has a very soft, supple touch and wool-like texture, while keeping excellent flame resistance. In addition, it is extremely lightweight compared to carbon fiber and inorganic fiber. With these features, LASTAN™️ is suitable for various types of post-processing such as making composites composed of LASTAN™️ and other materials.

Usage example01

Flame retardant insulation

LASTAN™️ contributes to a comfortable vehicle interior environment by shutting off heat radiated from the engine.

Usage example02

Electrical insulation

Many electric wires are used in automobiles. The wires include those for headlights, air conditioners, and computerized engines. LASTAN™️ can prevent the fire due to short-circuit of electrical wire from spreading to other parts of the vehicle.

Usage example03

Flameproof material around LiBs

Interest in the environmental impact of increased greenhouse gas emissions has been growing year by year, and the shift from gasoline vehicles to EV vehicles is accelerating. On the other hand, fire from EV vehicle batteries has become a problem, and automotive manufacturers are looking for measures to prevent the fire. Applying LASTAN™️ around LiBs would delay the spread of fire due to LiB thermal runaway, which ensures enough time for the passengers to evacuate from the burning vehicle.

Efforts toward the environment

RoHS Directive:(Directive on the Restriction of the use of certain Hazardous Substances in electrical equipment)
In Europe, since July 1, 2006, the RoHS Directive has been enacted to restrict the use of hazardous substances in electrical and electronic equipment. The Directive regulates the use of six harmful substances: Lead, mercury, cadmium, hexavalent chromium, PBB, and PBDE.

The raw materials of LASTAN™️ also comply with other regulations including the REACH and the TSCA. Contact us for further information on conditions such as compliance with the latest REACH SVHC List.

REACH:Registration, Evaluation, Authorization and Restriction of Chemicals
The REACH Regulation is the comprehensive regulations of the European Parliament and the European Council on the registration, assessment, authorization, and restriction of chemicals, which entered into force on 1 June 2007.
TSCA:Toxic Substances Control Act
U.S. law for regulating harmful substances. Law concerning the regulation of harmful chemical substances.

Other Applications

(1) Flameproof and flame-retardant materials: Fire resistant sound absorption materials for railways, flameproof materials for household appliances, flameproof materials for air conditioners, and other applications.
(2) Applications related to safety and flame prevention: Welding/fusing spark protection sheets, emergency evacuation clothing, and other applications.
(3) Infrastructure-related applications: Underground cable coverings.

Product Q&A


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