Removing the old sponge material using a screw driver.
Lighter fluid softens and makes it easier to remove the old glue.
I mark the metal bar with the model number of the knitting machine or ribber.
I lay in the new sponge, which is pre glued by removing the plastic an inch or two at a time and finger press into the metal channel of the retainer. It is a snug fit.
In Canada, this can be purchased at the Canadian Tire Store, $7.99 plus tax. In the weatherstripping display area.