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  1. #1
    Join Date
    Sep 2007
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    Aus
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    Default Timber floor remove stain and polishing advice

    Dear Experts

    I live in a house age of its timber floor may be 25 years old

    I have noticed three spots.....two of them have stain and one its coat got peeled

    As DIY how can I remove the stain ? Do I need to polish (coat ) it after the stain is removed ?

    Thanks

    ThanksIMG-2774.jpgIMG-2772.jpgIMG-2761.jpg

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  3. #2
    Join Date
    Feb 2006
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    Perth
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    27,756

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    Looks like a complete floor strip with a floor sander job to me.

    Sanding will probably remove most of the stairm but if they have penetrated into the wood t is much harder to remove them.
    Some stains can be removed using Oxalic acid but this also can bleach the timber so you would need to try it out in a low visibility area of the floor.

  4. #3
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    Sep 2007
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    Aus
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    Thanks Bob
    Can oxalic acid be found at Bunnings i will give it a try

  5. #4
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    Quote Originally Posted by zillah View Post
    Thanks Bob
    Can oxalic acid be found at Bunnings i will give it a try
    Yes - it's sold as rust and stain cleaner
    https://www.bunnings.com.au/diggers-...eaner_p0960276
    It's one of the safer acids to use but as usual follow the instructions.

    If the stains are covered by any sort of dirt or oily layers these layers will need to be removed using a solvent like turps, followed by a detergent based wash. This may need to be repeated several times and the same applies to the oxalic acid.

    I got more even and consistent results by treating the entire wooden surface. If you just treat the stains it will look patchy. That's why I recommend a complete sanding of the floor first. This may even remove most of the stains and then you won't need to mess with the oxalic.

    We had "dinner plate" sized spot on our kitchen floor where a mostly empty bottle of olive oil had fallen onto and broken. The old floor finish was scratched and cracked and some oil soaked into the wood. When we recently had our floors resanded I was worried the new finish would not adhere on that patch but just the sanding stripped away all the oil and it came up real nice.

  6. #5
    Join Date
    Sep 2007
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    Aus
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    Thanks Bob

    When we recently had our floors resanded
    Had the resanded done by a tradesman ?

  7. #6
    Join Date
    Apr 2006
    Location
    Hobart
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    Hi Zillah

    Good advice from BobL

    You will still probably need to sand the floor after any stain removal so why not bye-pass the stain removal step. You will either need to subcontract the sanding or hire a floor sanding machine. It is easy to sand unevenly with said machines, definitely a learning curve involved, so its really worth considering subbing.

    You will also need to drive all the nails below the new sanded level of the floor, say 2 mm below existing surface, and then bog the holes before sanding.

    Most use polyurethane for floor finishing; I prefer urethane. Unsealed floors will quickly absorb new stains! Finishing is the easy part after sanding and thorough clean up.


    Cheers

    Graeme

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