How strong is the material used for the repair?
The specially formulated polymer has a compression strength of up to 18000 psi (124 mpa), and 12000 psi torsional strength. It also has a dry lubricant inserted in manufacture. This material was originally developed for industrial bushes and bearing applications.Some local shops I know who claims to do polymer injection uses only the cheap substandard nylon material which is unsafe and easily breaks if overheated.Only ZEE uses the tried and tested polymer material ,same material used by joint restores from South Africa, England, Australia since 1991.