Question: is penofin a good product?
Answer: Penofin Exotic Wood Stain Review 3.1/5 (12) Penofin Hardwood and IPE Stain continues to have issues with darkening or turning black on a vast majority of wood decks and exterior wood. Penofin For Hardwood Stain is a 99% UV protection Brazilian Rosewood Oil finish. ... This results in a natural finished look to your wood.