Answer
May 11, 2020 - 12:10 PM
For the exterior of the raised garden beds or compost bins, we recommend the Vermont Natural Coatings PolyWhey as it is both a penetrating water proofer and creates a durable coating on the surface. It is a stain and sealer all in one.For the interior of the bed, the part covered by soil, we recommend the AFM SafeCoat Dynoseal. It is a waterproofing membrane that prevents moisture intrusion from the soil into the wood and stops leaching of the cedar tannins into the soil. This has become a very popular product for raised garden beds, and would work for your compost bin as well.