AI - 555
Asbestos Beater Jointings (Grade : AI-555)
| S.No. | Particular | – | AI-555 |
| 1 | Density (gms/cc) | – | 1.10 ± 0.05 |
| 2 | Tensile Strength (kg/cm²) | (Minimum) | 45 |
| 3 | Compressibility at 5000 psi/ 350 kg/cm² (%) | – | 25-35 |
| 4 | Recovery (%) | (Minimum) | 25 |
| 5 | Loss on Ignition at 800 °C(%) | (Maximum) | 40 |
| 6 | After immersion in ASTM Oil No. 3 for 5 Hrs. @ 150 °C | – | – |
| Weight increase (%) | (Maximum) | 55 | |
| Thickness increase (%) | (Maximum) | 5 | |
| 7 | After immersion in ASTM Fuel B for 5 Hrs. | – | – |
| Weight increase (%) | (Maximum) | 55 | |
| Thickness increase (%) | (Maximum) | 5 | |
| 8 | Dimensions | – | – |
| Thickness Availablity | – | 0.40 mm – 1.50 mm | |
| Standard Size | Rolls of 1220 mm width, Length according to thickness. | ||
| 9 | ASTM Specification Compliance | F125160E61M3 |
Overview & Challenge
AI-555 Asbestos Beater Jointing (Grade AI-555) is a low-density jointing material manufactured using high-quality asbestos fibers, processed fillers, and a Nitrile Rubber (NBR) binder.
It provides excellent sealing properties and flexibility, making it suitable for a wide range of industrial and automotive applications that demand heat and pressure resistance.
This grade is a cost-effective alternative to AI-666, offering similar performance characteristics with minor variations in physical properties — ideal where moderate sealing strength and temperature resistance are sufficient.
Why Choose AI-555?
AI-555 offers a balanced combination of performance, affordability, and reliability.
It is especially suited for OEM and maintenance applications where standard sealing is required without the added cost of high-density or premium-grade jointing materials.