Profile: Protective Packaging Ltd. is providing detailed information about the capabilities and benefits of our innovative field liner, laminate sleeve that is easily fitted over the butt end of a wood utility pole at the point of setting and provides lasting protection for the utility pole and for the environment. It prevents preservative leaching from the utility pole into the soil around it. This means that the preservative continues to protect the utility pole from its ground contact environment and in particular from fungal and insect attack, thereby prolonging the life of the pole.