Question: We have an arbor with unstained/unpainted treated lumber posts. We would like to seal them with Rainforest Sealer so that we could grow grape vines on/near them. Would this work? We live near Dallas where the summers frequently get to 100 degrees.
Thanks for your help.
Answer:Yes. Rainforest is excellent on this type of surface and it does harden and seal the Pressure Treated. However, it is a penetrating stain, so while it does encase the wood fiber very well, there will not be a film barrier created between the pressure treated and the grapes.
For a solid food grade barrier between pressure treated wood toxins and fresh growth grapes there are two great options.
Aqualine Solid: Apply one or two coats of Aqualine Solid Stain in your favorite color. Aqualine is non toxic and will do well in the sun. It quickly creates a safe film between the pressure treated wood and the grapes.
Rainforest and Mountain XT: Rainforest Sealer then Mountain XT. Select your favorite stain color for Rainforest and apply a coat of Mountain XT Clear over the Rainforest. Both these products are all natural.
I hope this helps!
Happy planting.
Tom