Answer
Apr 14, 2020 - 04:37 AM
Our best product for that purpose is indeed AFM Dynoseal which is an elastomeric coating made for foundation walls and all below grade applications. It has a dark bronze color.For the outside of the raised garden bed, we recommend our Vermont Natural Coatings PolyWhey Exterior Stain which is a stain and sealer all in one. It's water-based and non-toxic and comes in 4 colors plus a clear. It will hold up better than the oil due to the pigments which naturally resist UV rays and will not attract mold due to its hard durable finish. Both products will prevent leaching. Samples are available for testing.
