scholar
Established Member
Hello All
We have quite a lot of oak in the way of stairs, internal doors and a large built in cupboard. This is all “new” ie modern oak installed in the past 15 years or so. Some of the oak needs refinishing, but I would like some advice on some staining that has appeared over the years.
Some relevant points:
- the oak is a mixture of different jobs, ie bought-in solid oak doors, separately manufactured solid oak stairs and doors, and the large cupboard is a mix of solid oak and veneered panels/shelves.
- the staining has appeared seemingly randomly on all these different components.
- the building was left unused for long periods after the main work was done and so will have been relatively damp as the place was fully drying out (it is a conversion of a very old building)
- the finish should have been universally Osmo Polyx Oil, but I cannot be sure what was actually applied.
I have not yet attempted any heavy scrubbing/chemicals/solvents as I want to avoid making it all very patchy without knowing what I am doing!
I have included some photos below.
The first question is - are these tannin stains? If not, do we know what they are?
Second question is - is there a practicable solution to removing the staining?
Any experience/insight would be much appreciated![Slightly smiling face :slight_smile: 🙂](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png)
Cheers
We have quite a lot of oak in the way of stairs, internal doors and a large built in cupboard. This is all “new” ie modern oak installed in the past 15 years or so. Some of the oak needs refinishing, but I would like some advice on some staining that has appeared over the years.
Some relevant points:
- the oak is a mixture of different jobs, ie bought-in solid oak doors, separately manufactured solid oak stairs and doors, and the large cupboard is a mix of solid oak and veneered panels/shelves.
- the staining has appeared seemingly randomly on all these different components.
- the building was left unused for long periods after the main work was done and so will have been relatively damp as the place was fully drying out (it is a conversion of a very old building)
- the finish should have been universally Osmo Polyx Oil, but I cannot be sure what was actually applied.
I have not yet attempted any heavy scrubbing/chemicals/solvents as I want to avoid making it all very patchy without knowing what I am doing!
I have included some photos below.
The first question is - are these tannin stains? If not, do we know what they are?
Second question is - is there a practicable solution to removing the staining?
![D857B8B3-26F2-428A-AF7B-057B38CA4140.jpeg D857B8B3-26F2-428A-AF7B-057B38CA4140.jpeg](https://cdn.imagearchive.com/ukworkshop/data/attach/87/87068-D857B8B3-26F2-428A-AF7B-057B38CA4140.jpeg)
![79FAC865-B28A-448B-9114-33DDB8D51E94.jpeg 79FAC865-B28A-448B-9114-33DDB8D51E94.jpeg](https://cdn.imagearchive.com/ukworkshop/data/attach/87/87069-79FAC865-B28A-448B-9114-33DDB8D51E94.jpeg)
![853F0C91-F2DE-4CD1-96DB-6B27AC98C4F0.jpeg 853F0C91-F2DE-4CD1-96DB-6B27AC98C4F0.jpeg](https://cdn.imagearchive.com/ukworkshop/data/attach/87/87070-853F0C91-F2DE-4CD1-96DB-6B27AC98C4F0.jpeg)
![43757599-808F-44EC-94B0-B00AAD0D39C3.jpeg 43757599-808F-44EC-94B0-B00AAD0D39C3.jpeg](https://cdn.imagearchive.com/ukworkshop/data/attach/87/87071-43757599-808F-44EC-94B0-B00AAD0D39C3.jpeg)
Any experience/insight would be much appreciated
![Slightly smiling face :slight_smile: 🙂](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png)
Cheers
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