Search results for query: oxalic acid

...Hydroxide has a lovely soft soapy texture, really nice ... because it is dissolving your skin. Imagine what happens if you get it in your eyes? It's very nasty stuff. Probably used by at least one serial killer to dispose of the evidence. Oxalic acid is readily available on ebay for not much...

...bit. I would use a spirit stain on the leather and finish it with micro crystalline wax. Pen marks will come out with an application of oxalic acid ( Liberon wood bleach ) To re-finish the desk you have a few choices and it depends on how smart you want it to look and how much you are...

if you want to bleach stains and discolouration from stripped oak you need oxalic acid - easy to use. If you need to appreciably lighten the stripped oak you need Hyrdrogen peroxide used either with ammonia or Sodium Hydroxide - not a DIY product and I wouldnt even begin to describe whats...

...doing some prep before the weather changes. We are also doing some redecoration internally including cleaning down some of the Oak beams with a wire brush and bleaching out any iron staining with Oxalic acid. Looking good but smelling strong tonight before neutralizing with clean water tomorrow.

...and dirt penetrating a thin finish in places. It is very common with teak tables. I would try two ways of correcting it. Firstly use oxalic acid, rag on a warm solution with fine wire wool or a scouring pad, scrub it into the grain and leave overnight, rinse off and dry. If it is still uneven...

...one which is solid Iroko and I have stripped the top as it had quite a few water marks and a red wine stain, I gave it 2 treatments with Oxalic acid made up from crystals, this got rid of the wine and water stains however there are still some dark marks which are only just visible when the...

...post, but it certailnl does work. I have seen rally bad marking on oak from contact between water based glue and sash cramps during glue up and oxalic acid removed them. In some areas water can gave quite a high iron content so this is certainly a possible cause of the marks you refer to. Jim

...really used to give a uniform tone if you want to reduce the contrast between board colours, if you aren't using a stain. There's also oxalic acid - comes in powder form usually - for removing rust and water stains. once you've gotten rid of the mildew, you might want to give it a once over...

Agree, so much so that i reckon i now need a new frog for my 4 1/2 :( PS I have some oxalic acid, so if you want i can send you 100gms if you want?

...to stay a bit damp round the edge of the sink and doesn't take much. Oak goes black at the drop of a hat. If this is what it is then oxalic acid (applied to entire surface not just the stain, as it has a slight bleaching effect) will get rid of it. Then refinish with something more...

...from 99p shop You should now have a nice evenly coloured stripped surface ready for finishing. Further cleaning can be done by using oxalic acid solution if needed. The above is what worked for me today but by god what a faff and quite the worst product I have ever used but I think I'm...

...taking special care to get good coverage around any edges or seals, particular the sink area. If you find that the sanding process still hasn't taken out the black marks then using oxalic acid with some warm water on the affected areas will do the job. Really hope this info is of some...

...and then a light sanding with 150 grit then 240. It will almost certainly be stained with a spirit dye and so will easily bleach out with oxalic acid. It would be up to you how much of the original finish you take off, you could leave some of the colour in the nooks and crannies, feathering...

...you can sand the finish off, by hand or an orbital sander. If after this, your orange colour is still in the timber you will have to use oxalic acid to bleach it out. You can buy oxalic in crystal form or ready mixed in a bottle, I think Liberon sell it as 'wood bleacher'. It may take several...

...then apply lacquer which these days is acrylic. Once you have stripped the table, you may find stain still in the wood, and you can use oxalic acid if you want to get closer to the natural wood. I used Danish Oil on some items as it is easy to apply. I used hardwax oil on a chest, which is...

Just because it's "arts and crafts" doesn't mean that 1/ it's good. 2/ I have to like it. Each to their own - It doesn't make me a philistine, any more than liking it makes you a person of impeccable taste.

...on the medallion. Plus the usual cheap beech handle. After removing the rivets/ medallion i dropped the blade/ spine in some oxalic acid for a bit to remove the rust. Then took various grits of sand paper to the blade/ spine. After buying a piece of curly maple on ebay, i used a...

Oxalic acid should do the trick - I've used it on quite large areas as well as specific water/iron stains. Bob

...as it is in my view good solid wood, with nice designs. The darker stuff is cheap at auction, but can it be stripped and lightened with oxalic acid, or will it always look like dark furniture stripped? There is a chap on ebay who sells refinished Ercol, but you can always tell the ones that...

Funny you ask that, I was just reading the Anarchist's Tool Chest and sure enough there was a section on refreshing a folding boxwood rule without removing the markings, I think he used oxalic acid, but I'll double check and get back to you!