Answer
May 25, 2020 - 02:34 AM
VCN PolyWhey Ext. Stain is a longer lasting product and the colored stains have the most UV resistance. The WaterProofer is clear and has little UV resistance. For the outside of raised garden beds and seasoned (6-12 months) pressure treated lumber, the PolyWhey Ext. Stain is the best. We have found it to be as good or better than most oil-based products.For the inside of the raised garden bed, use our AFM Dynoseal which is a non-toxic waterproofing membrane designed for below grade applications such as foundation walls, roofing, shower pans and fence posts. This will block moisture from rotting the wood and stop the tannins in the wood from leaching into your soil.
