If you find the answer I will be very interested. I stripped my whole deck last autumn and stained with Cuprinol and it's already peeling. I could weep as it took days of hard graft to do it. Would decking oil be any better in terms of wear and tear?
We stained our old decking. Followed the advice to the letter. In a year it went patchy. I even contacted the manufacturer -no help. Basically its the product. A landscaper advised to old use oil on a deck for weather protection.
I'm glad I'm not the only one, an oil wouldn't work as some areas are porous and some aren't. We have recently put some new decking at a cafe we own and I was paranoid as I didn't want to ruin it, I used Screw fix no nonsense decking oil and it is fantastic but only on absorbant wood.
Just go darker. Don't power hose it first as it just traps in the damp which causes it to peel and also wait until the weather's been dry for a few days before you do anything as again it's the trapped moisture that makes it peel. Give it a really good brush first (if you have one of those wire decking brushes - like a sweeping brush but the bristles are wire - use that). I tip my decking stain into an old washing up bowl and apply it with a sweeping brush - I can do it in just over an hour.
This was a few years ago but we bought cuprinol, paid for the toughest 5 year guaranteed water proof protection stuff. I was sooo annoyed I contacted customer services - never do that. They assured me it was my fault. We had taken photos and had receipts assuring them we followed thier instructions to the letter, they couldn't give a shit, they know their product is rubbish.
KAZ can you pressure wash off the non absorbent bits or sand? I wont use anything other than oil. Its a shame as I liked the dark finish the stain gave.