Originally Posted by
simonmelb
You’re on the right track - just remember to use the right treatment as follows:
Sanding - required to remove surface coatings like varnishes, and to take any wood back to a new like layer
Sodium Percarbonate ( Available in pure form from Homebrew shops) or in Napisan etc: excellent for removing organic residues ie dirt etc.
Oxalic Acid ( found in good decking cleaners): removes the grey oxide layer so your oils will bring out the natural wood grain really well.
In your case, yes it looks like you need to sand that partial surface coating off, then oil. Sanding means you won’t need to use oxalic acid.
I would use a heavy duty orbital as I’ve got one - but just about any sander will work, even a good random orbital.
That's amazing, thanks for the tip on Oxalic Acid. it went from greyed patchy uglyness to almost looking like new raw decking boards after brushing some concrete cleaner over it.
I found a lot fo the Oxalic Acid was still undissolved in the bottom of the bucket when I emptied it.... Its probably worth washing it down again, this time disolving the powder in hot water first before adding it to the bucket.... To see if I can bring out some more colour....
I think I'll just oil it though as it looks like rain everyday for as far as the weather report shows.
Proper cars--
'92 Range Rover 3.8V8 ... 5spd manual
'85 Series II CX2500 GTi Turbo I :burnrubber:
'63 ID19 x 2 :wheelchair:
'72 DS21 ie 5spd pallas
Modern Junk:
'07 Poogoe 407 HDi 6spd manual :zzz:
'11 Poogoe RCZ HDI 6spd manual
. I'll take the same photo tomorrow if I get out there before it rains again 
. they will be galavised decking screws. the boards are the same dark colour anywhere they are wet if you look around the edges of the puddle of water there.
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