Excellent heat resistance, strength and stiffness
Polyamide Resin

Grade List
leona leona

LEONA™ Grade Table

Asahi Kasei is proud to offer an extensive lineup of LEONA™ polyamide resin grades featuring a variety of polyamide resins blended with fillers and other additives.

The basic PA66 family of LEONA™ resins includes a broad variety of grades: standard grades, glass-fiber (GF) reinforced grades, low-warping/low-abrasion grades, impact-resistant grades, high-viscosity/fatigue-resistant grades, sliding grades, heat-resistant grades, flame-retardant grades, and more.

Beyond the PA66 family, we also offer grades based on PA66/6I—a compound blended with semi-aromatic polyamide 6I—and grades based on 66+6I polymer alloys, as well as grades based on low-water-absorption PA612 and grades based on PA610, which features low water absorption and is derived from plant matter.

 We are also currently developing several new additions to the LEONA™ family, including the LEONA™ SN series—PA66+6I flame-retardant grades that are highly attractive in appearance, retain high strength upon water absorption, and are made with flame retardants that incorporate no halogens or red phosphorus—and the LEONA™ SU series of PA6+6I grades, which combine highly attractive appearance with good formability properties and excellent strength, and are intended for applications to exterior components requiring no painting.   Our other ongoing development projects include  extrusion grades intended as materials for pipes and tubes in electric-vehicle cooling systems. 

 

Click on each grade in the table below for detailed product data—or click the individual buttons to learn more about the unique features of each product series.

 

Polyamide type 66 66/6I 66+6I 66/6 66+6 610 66+612
Features Standard Heat stabilized Flame retardant Excellent surface
Enhanced strength
Excellent surface
High properties under wet
Excellent surface
High properties under wet
Heat stabilized
Excellent surface
Flame retardance
Excellent surface
Enhanced stiffness
Excellent surface
Flame retardance
Excellent surface
Enhanced stiffness
Low water absorption Low water absorption
Non-reinforced 1300S 1402S
1422S
FR
Non-halogen
FR370
          FR
Non-halogen
FR200
FR650
     
GF reinforced 13G15
13G30
1300G
13G43
13G50
14G
14G15
14G20
14G25
14G30
1402G
14G33
14G35
14G43
14G45
14G50

FG
Halogen
FG170
FG172
FG171
FG173

90G
90G33
90G50
90G55
90G60
SG
SG114
SG115
SG(黒)
SG104
SG105
SG106
SH
Halogen
SH10E

 

SN
Non-halogen
SN11B
SN103

93G33   54G33 BG
BG230
53G
53G33
Low warpage
Low wear
CR301
CR302
CR103
MR001
  91G
91G55
91G60
 
CR701
               
Impact modified   TR161
TR382
                   
High viscosity
High viscosity
1500
1700S
高粘度
1502
1502S
1702
15G20
          High viscosity
9400S
       
Low friction   Low friction
1442
1542
                   
busbar cover

Products in the LEONA™ S Series are made by alloying with semi-aromatic polyamide PA6I to suppress variations in dimensions upon water absorption. These grades exhibit excellent mechanical strength and are ideal for use as replacements for metal components.
Materials in the SG series incorporate 40-60% glass-fiber (GF) and feature low emission of volatile organic compounds and surfaces that are highly attractive in appearance.
The SN series are flame-retardant grades that incorporate no halogens or red phosphorus.
The SH series are halogen-based flame-retardant grades that incorporate 50% or more glass-fiber reinforcers.

Click here to learn more about the SN series
Feature
  • Highly attractive surfaces
  • high strength upon water absorption
  • Good fluid properties
  • Good long-term creep behavior
  • Flame retardance  (SH,SNseries)
Application
  • Mirror brackets
  • Air vent; vent blades
  • EV batteries peripheral components
  • Magnet switch
  • Air-pressure regulators
自動車内装 * For illustrative purposes

90G, 91G series

Corresponding grades

These grades are based on PA66/6I—a compound consisting of PA66 blended with semi-aromatic polyamide PA6I, which offers highly attractive surfaces and high mechanical strength—and incorporate glass-fiber reinforcers.
 Because these materials are capable of retaining highly attractive, class-A luster surfaces even when blended with up to 60% glass-fiber reinforcers, they eliminate the need for cumbersome painting steps in manufacturing processes, saving time and money. Moreover, they can be formed at lower mold temperatures than other comparable materials—a key advantage for injection-molding processes.

Feature
  • Highly attractive surfaces
  • High mechanical strength
  • Can eliminate painting steps in production processes
  • Low mold temperature
  • Weather resistance
Application
  • Door mirror stays
  • Roof rails
  • Air vent; vent blades
  • Mirror brackets
Connectors

The FR series is a UL94 V-0 flame resistance grade that uses a non-halogen Flame retardance.
Starting with standard material FR370, which has many achievements in photovoltaic power generation connector nuts, etc., we have a lineup of FR200 with excellent toughness and FR650 with excellent glow wire properties.

Feature
  • Flame retardancy  (UL94 V-0)
  • Minimal mold deposits
  • Good formability
  • Toughness (FR200) 
  • Good glow-wire properties (FR650)  
Application
  • Connectors
Magnetic switches

These are halogen-based strength-reinforced flame-retardant grades offering excellent strength and rigidity, high impact resistance, and high wear resistance. In addition, they exhibit minimal gas emission at high temperatures, ensuring minimal mold deposits during formation and good formability properties from the standpoint of corrosion resistance.

Feature
  •  V-0 level flame retardance (halogen-based)
  • Excellent wear resistance
  • Minimal mold deposits
  • Excellent corrosion resistance
Application
  • Connectors
  • Magnetic switches
Engine chain guides * For illustrative purposes

Low friction/low wear material 1442,1542

Corresponding grades

These materials blend trace quantities of PTFE into polyamide 66 to exhibit excellent lubricating properties and high heat resistance.

Feature
  • Self-lubricating properties
  • High heat resistance
  • Excellent wear resistance
  • Wide range of processing temperatures
Application
  • Engine chain guides
Water pipe

BG,53G series

Corresponding grades

The BG series of materials are polyamide 610 resins derived from plant matter and reinforced by glass fibers. The 53G series of materials are made from polyamide 66 and polyamide 612.
All of these materials offer low water absorption and excellent dimensional stability and are resistant to hydrolysis, calcium chloride, and LLC.

Feature
  • Low water absorption
  • Dimensional stability 
  • Hydrolysis resistance
  • Resistance to LLC
  • LLC resistance
Application
  • Radiator tanks
  • Oil pumps
Gear

High viscosity series

Corresponding grades

The High Viscosity Series is composed of high molecular weight polyamide 66, which provides excellent toughness and durability.
Non-reinforced grades (such as 1702) have high viscosity and are suitable for sheet and film processing. 15G20 is a high-viscosity grade reinforced with glass fibers and has excellent durability, making it suitable for gears and other parts requiring heat and stress.

Feature
  • High viscosity
  • High toughness
  • Durability
Application
  • Timing chain guide
  • Electrically-actuated power- steering gears
  • Sheet/film processes
エンジン部品 * For illustrative purposes

These are glass-fiber-reinforced PA66 grades featuring excellent mechanical strength, fatigue strength, creep resistance, and resistance to thermal aging. These materials have been widely adopted for use in automotive and other applications.

Feature
  • High mechanical strength
  • Heat stabilized
  • Fatigue resistance
  • Creep resistance 
Application
  • Cylinder head cover
  • Torque rods
  • Engine mounts

Product Data/Tips for Use *Handling Precautions

LEONA™ handling precautions

The content of this document is based on materials, information, and data available at this time, and may be revised based on new findings. Please note that these are provided as information and are not guaranteed. Therefore, when using our products, please take full consideration of the usage environment, design, etc., and use them at your own risk after judging that there is no problem with the product.

1. Handling Precautions

The following are important points to note when handling LEONA™ that we supply to you. Please use them to ensure safe handling of LEONA™.
Please note that we have prepared a separate Material Safety Data Sheet for handling precautions for LEONA™. Please contact our staff and we will send it to you. Please investigate the safety of any additives other than LEONA™ that you use yourself.

(1) Safety and health precautions
Be careful to avoid eye or skin contact or inhalation of gases generated during drying or melting of LEONA™. Also, avoid direct contact with hot resin. We recommend installing local exhaust ventilation and wearing protective equipment (safety glasses, gloves, etc.) during each operation such as drying and melting.

(2) Precautions regarding combustion
LEONA™ is flammable, so handle and store it away from heat and sources of ignition. If it catches fire, it may emit toxic or suffocating gases. To extinguish a fire, use water, foam or dry chemical extinguishers.

(3) Disposal precautions
LEONA™ can be disposed of by incineration or landfill, but disposal should be entrusted to a certified industrial waste disposal company or local government in accordance with the Waste Disposal and Public Cleansing Law. If you incinerate Leona™ yourself, use incineration equipment that complies with the Air Pollution Control Law and other laws and regulations. Incineration may generate toxic gases such as carbon monoxide and suffocating gases.

(4) Notes on storage
Absolutely avoid resin contamination and moisture absorption. Store in a cool, dry place and start molding immediately after opening. Do not pierce the product bag or let it get wet. Also, do not return spilled resin to the product bag. It is a combustible material (synthetic resins) designated by the Fire Service Act, and should be handled in accordance with municipal ordinances. (Fire extinguishing facility, indoor storage facility, etc.)

(5) Precautions for molding
The appropriate resin temperature for molding LEONA™ is 270-310°C. If the temperature is lower than this, there is a risk of localized deterioration of physical properties due to uneven plasticization. On the other hand, if the temperature is higher than this, there is a risk of gas generation due to decomposition and poor appearance such as silver. However, there are some exceptions such as FR200 and FR370, so be sure to refer to the individual catalogs before molding. Also, do not allow LEONA™ to remain in a molten state in the molding machine cylinder for a long period of time. This will cause the resin to decompose and the molded product to discolor or deteriorate. In that case, replace the inside of the cylinder with polyethylene or similar before molding.

2. Usage

  • -LEONA™ should not be used for implantation into the body or for applications involving direct contact with body fluids or infusions.
  • ・When using for other medical purposes, please be sure to contact us in advance.
  • ・Do not use for applications that come into contact with food, such as food packaging containers.
  • ・Please contact us for details.
  • ・If you are considering using our products for other special purposes, please contact us and we will discuss them individually.
  • ・Please contact our person in charge for details on the compatibility of each grade with the Electrical Appliance and Material Control Law, UL standards, CSA standards, etc.

3.Others

Please be aware of industrial property rights when using this product.

Please contact us to ask any questions, discuss any concerns, and request samples.

Enter a description of the PPE
sustainability
Asahi Asahi Kasei engineering plastics' contribution to achieving carbon neutrality
The Asahi Kasei Group is committed to contributing to the realization of a carbon neutrality, sustainable society.
We will introduce our efforts to achieve a circular economy in the engineering plastics business.
Learn more