Floor Sanding and Polyurethrane

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  altomic on 02/08/2019 - 09:42

  are you going darker, the same colour or want to go lighter?

  the purpose of using a big industrial sander is (a) remove built up crap , and (b) strip the floorboards back so to remove the colour so you can go lighter, or remove surface damage.

  if you wanting to refinish the floor in the same colour or darker then:

  on a test area give the floor boards a thorough vacuum then a good wash + scrub to remove any grease, dirt, etc. let it dry thoroughly and then a light sand , and then a coat of polyurethane. wait and apply second coat (and if you wish a 3rd coat)

  generally, if the boards are in good condition and you want the same colour or darker then just a good wash is required for prep.

  what's up with the floor in the second pic? is it warped? or the skirting board is funky?

  • 

    funnysht on 02/08/2019 - 09:44

    yes thanks, but i will be getting like 10 raw boards so is it possible to stain and poolyurtherane just these boards to look similar to the others? i was going to go to bunnings and match a stain .lol.unless if someone could guess what the stain is

    • 

      altomic on 02/08/2019 - 09:50

      go and match a stain.. get the colour swatches .

      is it possible to stain and poolyurtherane just these boards to look similar to the others?

      yes, you can if you get the right stain.

      • 

        funnysht on 02/08/2019 - 09:55

        thanks, i think that's easier..are there any bunnings or specialised stores that do this matching, i was going to take a section of cut floor board…
        also i noted that there are some very light gouching very minor- i will see if i can post a photo up, if i used 1 80grit to just remove the pvc and restain and pvc, will that do the job or need a drum sander to go deeper, or is it difficult to say without photos
        (marks are just like if you ran a shopping trolley over the boards) maybe 1mm deep

        • 

          altomic on 02/08/2019 - 10:40

          @funnysht: those boards look old. so they have "character" .

          I wouldn't worry too much about 1mm gouges.

          depends how large / long the they are. - a pic would assist.

          see, once you start sanding with a drum sander on one area then you will have to do the whole room.

          even a hand sander might suffice.

          if you want an inexpensive and straightforward option then a good scrub clean and then stain.

• 

  funnysht on 02/08/2019 - 10:44

  Thanks apartment was built in 1998 so prob installed by anothrr landlord so say 10-15 yrs old

  • 

    altomic on 02/08/2019 - 10:46

    I was way off. cheers

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  funnysht on 02/08/2019 - 10:46

  https://files.ozbargain.com.au/upload/143535/71414/156470672…

  Uploaded a closer photo..looks dirty

  • 

    altomic on 02/08/2019 - 10:48

    I wouldn't worry too much about those marks. wash floor thoroughly, let dry, light sand over the those scratched areas (go with the grain. not across the grain) . vacuum dust up, then wipe with damp sponge, let dry. and apply polyurethane

    • 

      funnysht on 02/08/2019 - 10:53

      Btw i sound like a neewb but light sand do you mean buffing with a 80 grit? Though is this enough to remove the ployurethtrane

      And event more noob wheb one washes is it just with a damp cloth or you use 1:10. Vinegar

      • 

        altomic on 04/08/2019 - 12:36

        I'd use a squeegy mop. with a bucket of hot water and some floor cleaner detergent.

        light sand with 80 grit. you don't need to remove the polyurethane , you just want to rough it a little. the new coat will "seep " in to the marks.

        vacuum first then mop, then let dry .

        you just want to clean any crap & residue off the boards . (if there is any)

• 

  JimB on 02/08/2019 - 12:02

  +1

  You need to fix the underlying damp issue first.

  Look at the skirting.

  Did the place get flooded?

  Why did the timber cup?

  Unless you don't care how it looks, I'd get the whole floor sanded and polished than try to do a section of the floor.

  • 

    funnysht on 02/08/2019 - 12:40

    It was like two large puddles and i dont expect a perfect match prob just maybe 70-80% match

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  funnysht on 02/08/2019 - 12:41

  I would have gotten it done professionally but i need it done by the weekend. And two it is a top floor apaartment. If one day tenants bekow complain of noise then thats 5k down the drain

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  JimB on 02/08/2019 - 13:58

  They aren't stained.. they are solvent based polyurethane that has yellowed/darkened with UV light.

  • 

    funnysht on 02/08/2019 - 14:07

    Coop thanks
    Yeh i bought some raw cypress pine and the guy there said you dont need to stain just coat 3-4 times with polyurethrane. Is that right?

    • 

      JimB on 02/08/2019 - 14:15

      3 coats will do.

      Depending on where you are, the 2nd and 3rd coats may take a few days to dry.

• 

  funnysht on 02/08/2019 - 14:14

  can anyone tell me the grade of that polyurethrane, mid gloss, satin or high gloss?

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  funnysht on 03/08/2019 - 20:51

  Just wondering i'm going to glue the fewm timber floor boards directly onto the concrete with sikabond. Because it's only a few floor boards, can i light buff it waith 180 and stain and then PVC it without waiting for it to dry? I'll be stepping on the old floorboards already in place or is it a better to wait till it dries?

  I guess does the stain/pvc interact with the undried sikabond?

  • 

    altomic on 04/08/2019 - 12:30

    I'd sand (and maybe even stain) before gluing down. do it outside to save on dust clean up.

    as long as you are not pouring buckets of stain on to the boards then there shouldn't be an issue with the undried sikabond.

    go mid gloss.