DIYbanter - View Single Post

wrote:
Stain doesn't really protect wood. You would still have to seal it.

Deck stains also contain sealant. It's not like the sort of stain you
might apply to furniture. That's why they're called "deck stain" and
not just "stain" - that's the difference.

You can buy a sealant without stain, and that will protect against
water but not sun damage. Deck stains have both sealant and UV
protection.