Protect your Archway investment with industrial grade wood preservatives. Most of the Poles, Inc. preservatives that are available for wood pole maintenance programs can also be applied to Archway Poles. Copper Naphthenate solutions and Cu-Bor Pouch wraps are very popular for original and in-service treatments of the area that is in-ground contact. Bor 8 Rods or Jecta diffusible can be installed inside the pole for internal protection.