WOCA Denmark Tannin Spot Remover – Neutralizes Black Water Stains on Oak & Wood | Water-Based | Indoor/Outdoor Use | Ready-to-Use Spot Cleaner for Acid/Tannin Marks- 0.25L Spray

My husband washed our engineered wood floor with a chrome/steel table on it. This left giant unsightly black marks as a chemical reaction took place between the metal and the wood. I got this spray having tried a lot of other "solutions" on the internet that did nothing other than strip the oil out of my engineered wood floor. For the record, I tried both bicarb and barkeeper's friend and they just left big white marks on the floor. Got this in despair, not really thinking it would work. Half an hour later the marks have all lifted. Amazing. And it was so easy to use and didn't even smell. I'm delighted. Wish I had just used this first as I now need to re-oil the floor because of the damage done by earlier treatments. 100% recommend.

This spot remover had its work cut out for it. We tackled the paint moisture that had seeped through some cloth and heavily marked out oak breakfast bar. Applied the spray 3 times and re-applied some Osmo oil to bring back the finish, very happy as you can almost not see it.

Didn't do anything to remove black water stains, even after several rounds. Not worth the money.

If you’re struggling with a wet wood stain, this is a godsend. We were quoted over £400 by a French polisher to remove a large water stain on our table, however this product did the job for a fraction of the price. A quick polish over afterwards with some white oil and all was fixed.

We are selling our house. Didn't want to sand the kitchen workshop and reoil it - just didn't have time for that or to deal with the mess. I did some research and purchased various products wood stain removal products. This one was amazing, did have to use steel wool. Some marks didn't come out fully but a lot less noticeable. To clean an oak kitchen worktop that hasn't been properly maintained for 5 years with lots of stains and coffee marks took about an hour Reoiled the top last night, and doing another coat tonight. We are delighted, wish I took before and after shots. I felt so embarrassed by the state of the worktop - but was put off doing it a thought I would need to resand it The steel wool did discolour the wood slightly (not the product) but once oiled, you can barely noticed it. We are surprised and happy, our kitchen now looks loved!

Took a few goes, but worked on a very dark, 20 cm ring that appeared after I accidentally left a wet metal compost bucket on our wood worktop. I had tried countless other methods online, none of which worked, but this product did!

After reading reviews I had great hopes for this product, sadly it didn't work on the stain on my floor though, but that's not to say it won't work for others! Arrived quickly and well packaged.

Easy for use good for small water spots ,value for money

Absoluut een aanrader alle donkere vlekken zijn weg binnen 30 min. was ons probleem opgelost.

Vorgeschichte: einen Fleck statt wegzubekommen wesentlich vergrößert da falsch gereining (Öl, Zahnpasta, Soda, Putzmittel etc) Fazit: ein Riesenproblem, da der Fleck im Eingangsbereich war. Ich war komplett verzweifelt. Dann habe ich dieses Mittel entdeckt und? Das war meine Rettung, dieses Mittel hat meine Erwartungen übertroffen (und zu Hause hängt der Segen nicht mehr schief - das alleine ist schon mal unbezahlbar) in meinem Fall funktioniert es auf offenporigen Holzboden (Eiche), nur geölt. Ich hätte das Mittel schon viel früher kaufen sollen, in der alten Wohnung habe ich einen Wasserfleck schleifen lassen... Kostenpunkt 700,- (klar, dass der Bodenleger schleifen will :-) €€€€) da wäre der Versuch mit diesem Mittel hier viele Versuche Wert. DANKE DANKE DANKE!!!!!

Polecam na lekkie plamy.

Leek veelbelovend maar we slaagden er niet in om de typische zwarte strepen op onze parketvloer te verwijderen met dit product, ook niet na 4x proberen na elkaar.

You need to be patient. This product does work, but it's not instant at all. You should expect to let this sit against the wood for a while, and it might require repeated applications to get the desired results, but remember that dark stain didn't happen instantly either. Clean the surface well, apply this product liberally, and wait as long as you can before wiping it up. The active ingredient needs to stay wet to work, so covering the area with cling film can be helpful to prolong the working time of each application. Expect to wipe up yellow slime afterwards, those are the dissolved tannins.