The combination of high humidity, high heat, and low sunlight found in the gulf coast region created the perfect conditions for the growth of mold on heat treated wood products.
When the IPPC set the heat treating regulations and companies started using heat treated pallets to ship overseas, packaging manufacturers based in the southern United States began encountering a problem stemming from the process of heat treating. The combination of high humidity, high heat, and low sunlight found in the gulf coast region created the perfect conditions for the growth of mold on heat treated wood products.
The heat treating requirement is in place to combat insects possibly living in or on wood packaging at which it does a fine job, but the process also brings the natural sugars out of the wood and onto the surface of the wood. These sugars act as food for mold. While undesirable, mold growth on pallets is harmless. It can be removed after the fact by high pressure water and/or a diluted amount of bleach. This method will clean a pallet and removed most signs of mold growth, but will only protect against future growth for a very small amount of time. The most effective way to handle the problem is with a treatment that works considerably longer and more successfully.
Arrington Lumber & Pallet Co spent many hours and many dollars in search of the answer. The product used was not the only factor, but also how the product was applied. After many months of trial and error, we finalized our process for addressing this prevalent problem.
The process we employ is suitable for use in any industry and is EPA approved for use with food packaging. We treat the pallet as a whole unit after the build and heat treating phase, ensuring that we are covering 99.9% of the surface area and up to 1/4 inch deep into the wood. We are confident that our process works better than any other available method, and our results and customer satisfaction speaks to that.