pauldoc Posted January 11, 2017 Share Posted January 11, 2017 Hi. Not sure if this is the best place for this question. I have Glulam beams on display through the first floor and prior to decorating wanted to clean them up as they got a bit dirty over the winter so have some darkish marks on them. Also plaster which I know will wash off. Not sure what wood they are (engineered softwood I think) any suggestions on the best way to get them looking as good as new? I was going to use wire wool and white spirit Link to comment Share on other sites More sharing options...
Crofter Posted January 11, 2017 Share Posted January 11, 2017 If it's mud/dirt, make sure they're nice and dry and try just scraping it off. If you go with wire wool, best to use stainless in case any fragments get left behind. Any actual stains may be treated carefully with oxalic acid, which bleaches out dark spots, but it's a bit of a nuclear option, as of course is sanding. Link to comment Share on other sites More sharing options...
pauldoc Posted January 11, 2017 Author Share Posted January 11, 2017 1 hour ago, Crofter said: of Would bar keepers friend work or should I get neat acid? Link to comment Share on other sites More sharing options...
Crofter Posted January 11, 2017 Share Posted January 11, 2017 I'm not sure but I think BCF is a mild abrasive/polish. Oxalic acid powder can be bought cheaply on eBay. Try something gentler first though... Link to comment Share on other sites More sharing options...
Steptoe Posted January 12, 2017 Share Posted January 12, 2017 IPA ? Don't know if it would be any good on an absorbent surface such as wood , but it may be a milder, gentler option to try first though, ? Link to comment Share on other sites More sharing options...
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