|new French / Canadian oak railway sleepers|
FOURTEEN DIFFERENT SIZES - SEE BELOW
Colour: Golden to
silver grey. The pictures above & below show how the
oak changes from a gold colour, to a blotchy, darker,
'stained' look, & finally to a silver grey. This cycle will take 4
- 10 months, depending on sunlight & location of the railway sleepers.
|Some examples of projects using French oak...... see 'project photos' for lots more examples|
CUSTOMER WRITES: "PROBLEMS WITH BLACK STAINS ON MY
OAK RAILWAY SLEEPERS"
Dear Kilgraney Railway Sleepers
Please can you throw me a lifeline here and save me with your wealth of experience.
Last weekend I installed green oak railway sleeper beds, my girlfriend applied lawn feed to the grass yesterday add torrential rain, and now
I have black stains and marks all over my new beds.
Is this normal with oak? how do you guys deal with this? I've heard about using oxalic acid crystals. Is this the solution?
I haven't got a solution I'm afraid, other than to sand the black marks off,
and then let nature take over. Alternatively you could apply a dark stain.
The discolouration arises as a result of the oak reacting with iron. Water can sometimes have a high iron content which is why the sleepers go black as shown in your picture. This is why cutting oak with certain saws/blades can result in black markings also.
There is a product widely available in all good hardware stores called Oxylic Acid which we applied to the wood with a normal paintbrush last night. Literally before our eyes these black/stained oak sleepers changed colour to perfect, fresh looking oak - amazing stuff!
So, please advise your oak sleeper customers (particularly those who
desire the modern/clean look), that iff they apply this product to the sleepers
once a year they return to an as new state with no discolouration.