If you ask a processor what type of PE they are running, a typical response will be, âIâm running a 7-melt, 953 material.â Translation: a material with a nominal melt index of 7 g/10 min. and a density of 0.953 grams/cm3.
If the cause of the popping sound is due to cavitation then this can help relieve pressure in the joints and provide some relief from neck pain and other joint pain, although this is likely to just be temporary.
This can happen in conditions where the cartilage has worn away leaving the joints themselves to rub against each other; it can also occur where fractured bones scrape across each other. Cracking and popping in the neck may be painless or could be connected to arthritis and neck pain.