This presentation addresses innovative solutions for creating multi-layer tubing systems for automotive fuel lines. It also describes the construction and performance of the SUNBESTA-ZV 3-layer tube system. For more information, go to www.agcchem.com or call 800-424-7833. You can also follow AGC on Twitter @AGCChem_Amer. Thanks for viewing!

1. NEWLY INNOVATIVE MLT SOLUTIONS:
SUNBESTA-ZV
Double Barrier Material Created by:
AGC CHEMICALS AMERICAS, INC.

2. Requirements for Fuel Lines
 Mechanical properties (Burst pressure, cold impact resistance, tensile
elongation, etc.)
 Long term durability (Lifetime)
• 15 years, 150,000 miles
 Fuel and chemical resistance
• CE5, CE10, CM15, CE22, CM30, CE85, E100
• Bio fuels (Bio alcohol, Bio diesel; RME, SME, etc.)
• Auto oxidized fuels (aggressive fuels with high peroxide number)
 Low permeation
• Euro4, Euro5, Euro6
• LEV II, PZEV, LEV III
 Conductive (USA , Japan)
 Processability, thermoforming (Straight, corrugate)
 Cost reduction

3. Trend of MLT System
• Wide variety of fuels are being used
• Lower emission requirements
• Cost efficiency
• Oligomer free and conductive material for inner layer
• Wide range of MLT systems for fuel lines:
• PA11/PA12 and PBT, PBN, PVDF, ETFE, EFEP, EVOH,
PPS MLT systems
• Layer construction of MLT has grown more complicated

4. Advanced Multi-Layer Tube System
AGC, KURARAY and UBE jointly developed 3-layer tube system
in order to offer:
• High level of low permeation system against variety of fuels
• Low oligomer wash out system
• Reasonable cost performance system
Outer layer
• Modified-PA12 with excellent cold impact resistance and
long term heat resistance
Middle layer
• Modified-PA9T with excellent hydro-carbon barrier properties and
good chemical and hydrolysis resistance
Inner layer
• Modified-ETFE with excellent alcohol barrier properties
• Fuel, chemical and hydrolysis resistance (including aggressive oxidized fuels and
high alcohol-based fuel)
• Adhesive properties

5. SUNBESTA-ZV Tube Construction
OD/ID = 8.0 mm/6.0mm
Thickness: Inner/Middle/Outer = 150/150/700 µm
 Standard Material:
• Outer layer: PA12 UBESTA 3030JI series
• Middle layer: PA9T Genestar N1001D-U series
• Inner layer: ETFE Fluon AH series

6. Fuel Permeation Rate
Barrier layer
thickness
300 µm
250 µm
250 µm
Temp: 60 oC
Method : Weight Loss

7. Combination Benefits of PA9T and ETFE
Temp: 60 oC
Method: Weight Loss

8. Permeation Rate in Comparison with Various MLTs
SHED Method
(Fuel: CARB DBL
Indolene+ETOH10%)
Tube dimensions =
OD/ID: 8.0 mm/6.0 mm
Length: 1m

9. Typical Tube Properties
*Tensile Speed: 50mm/min.
Distance between Marks/Grips: 50mm/100mm

10. Burst Properties: SAE J2260

11. Cold Impact Properties: SAE J2260

12. Layer Adhesion: SAE J2260

13. Electrical Resistance: SAE J2260

14. Layer Adhesion Performance
Peeling strength measured after filling with CE10 at 60 oC
Test specimens prepared by spiral strip, peeling speed: 50mm/min
Adhesion between PA12 layer and PA9T layer
Adhesion between PA12 layer and Mod. PO layer

15. Typical Processing Conditions: Conductive Straight Tube
Line speed: 20 m/min

16. UBESTA 3030JI26L Properties

17. Genestar N1001D – U83/02 Properties

18. Fluon AH2000 and AH3000L Properties

19. For Your Consideration
* These contents are prepared under the actual information and they can be revised at anytime.
* The described numerical values are average values obtained by measurement under prescribed
conditions; not guaranteed values.
* Asahi Glass, KURARAY and UBE don’t guarantee the quality and safety of your company’s finished
product even if Asahi Glass, KURARAY and UBE’s materials and the data described here or data
prepared by other companies are used to manufacture the finished product.
* Determination of the suitability of the finished product shall be the responsibility of your company.
* Specific application may be Subject to standards, regulations and commercial property right, fully
researched by your company.
* Ask for “Product Safety Data Sheet” before using Asahi Glass, KURARAY and UBE’s products.

20. AGC Chemicals Americas, Inc.
For
More
Informa,on
www.agcchem.com
800-­‐424-­‐7833

21. Intelligent Resins
Custom Compounds
Smart Chemistry Solutions
AGC CHEMICALS AMERICAS, INC.