Typical Technical Properties:
| Test Item | Standard | ||||
| Test Method | LR-5540 | LR-5550 | LR-5560 | LR-5561 | |
| Appearance | Visual | Pale yellow | |||
| Specific Gravity (g/cm3) | ASTM D792 | 1.4 | 1.41 | 1.42 | 1.44 |
| Hardness / shoreA | ASTM D2240 | 41 | 50 | 60 | 61 |
| Tensile Strength (MPa) | ASTM D412 | 9.5 | 9.8 | 10.2 | 9.8 |
| Elongation At Break (%) | ASTM D412 | 370 | 282 | 263 | 310 |
| Tear Strength (KN/m) | ASTM D624-B | 17 | 17 | 18 | 17 |
| *Heat Resistance
225°C X 72h |
Hardness change / shore A | 4 | 2 | +2 | 2 |
| Tensile strength change % | -24 | -25 | -23 | -26 | |
| Elongation at break change % | -19 | -10 | -14 | -12 | |
| Fuel C
Volume change/% 23°C/72h |
ASTM D471 | 23 | 23 | 21 | 21 |
| Peel Strength/N/mm, with Methyl vinyl silicone rubber | 2 | 2 | 2.2 | 2 | |
| Curing Condition | 0.8 DCBP, Press cure: 120°C x 15min, Post cure: 200°C x 4h | ||||
The above values are not intended for use in preparing specifications.
Heat resistance additives need to be added to meet the requirements of heat resistance.
Features:
Exhibits superior calenderability alongside exceptional resistance to oils and solvents.
Applications:
Specially formulated for high-integrity co-bonding with standard silicone rubber (VMQ), it is the ideal material for the inner liner of automotive turbocharger hoses and multi-layered composite tubing.
Processing Advice：
It is recommended to use 0.8 ~ 1 phr. peroxide (2,4-dichlorobenzoy)Vulcanizing agent (DCBP).
The customer shall decide the optimum curing temperature and time according to the product dimensions and curing methods.
Package &Storage:
Packed in plastic bags placed into reinforced cardboard boxes. Each box contains 2 bags with 10kg per bag.
Keep in cool, dry and ventilated place. Keep away from sunlight and fire sources. This product has cold-flow characteristics, should avoid bag breakage in the process of transportation and usage, shelf life is 12 months from the date of production. It is shipped as non-hazardous substance.
Storage beyond the shelf life does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.
