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Thread: Your Thought's On Bona Power Drive / Flexisand Pro 1.5?

  1. #31
    Floor Sanding Specialist Peak Flooring is on a distinguished road
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    I completely agree with you Gary that you need one of these machines in your life. They are great and we are leaving floors even better than we did previously and even then we left them looking great. Even with the standard flat drive plate it works 100 times better than the Bona Buffer Duo we also have. Absolutely love our new machine. Will be investing in another before the summer I think.

  2. #32
    Member TheFloorSander is on a distinguished road
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    Gaz sounds like a great machine

    Gaz are the trio heads not driven by a serpentine belt?

    I have a machine made by Kunzle and tasin which works in the same manner as the bona
    Its a 2.5hp buffer weighing 45kg with a gear driven base plate with 3 heads weighing 20kg.
    I find the best discs for it are cerimic. My sanding pads spin 3 times faster at 3x240=720rpm

    Can you you tell me what the bona machine spins at and the density of the sanding pads

  3. #33
    Member gazhugs has a spectacular aura about gazhugs has a spectacular aura about
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    Quote Originally Posted by TheFloorSander View Post
    Gaz sounds like a great machine

    Gaz are the trio heads not driven by a serpentine belt?

    I have a machine made by Kunzle and tasin which works in the same manner as the bona
    Its a 2.5hp buffer weighing 45kg with a gear driven base plate with 3 heads weighing 20kg.
    I find the best discs for it are cerimic. My sanding pads spin 3 times faster at 3x240=720rpm

    Can you you tell me what the bona machine spins at and the density of the sanding pads
    Yes the Trio is driven by a belt which drives a large deep plate [if memory serves] which the disc plates literally just clip into, the Flexisand spins at 147 rpm, and the motor spins the geared drive plate directly, no loss of any kinetic energy, each pad turns at all times, no skipping of any kind.

    Not sure if 720 rpm is right but that seems awfully fast, I think that [rpm] would burnish the timber really quickly possibly leaving the surface too glass like, may be right for your machine i just don't know as i've never used any KT gear, i'm a Bona man, always have been, always will be, their equipment works really really well so i don't see and need to change...I'll be honest i was thinking of getting a Trio, but when Bona asked me if i'd test their new machine for them i didn't need asking twice.

    After using it for 3 weeks and seeing first hand what it can do, how it does it's business and the finish the machine imparts on wood floors I knew that i'd have to be mad to spend double the money on a Trio, when the new Flexisand does what it does in the way it does [hope that sounds ok]

    Not sure what sanding pad density is ??

    Ceramic discs performed best, Zirconia discs not too far behind, Silica Carbide did well as did the Ali Oxide one's, the machine is pretty kind on abrasives i have to say, all in all a class machine which performs brilliantly, i'm sure anyone who has got one of these babies will say the same.

  4. #34
    Member TheFloorSander is on a distinguished road
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    Quote Originally Posted by gazhugs View Post
    Yes the Trio is driven by a belt which drives a large deep plate [if memory serves] which the disc plates literally just clip into, the Flexisand spins at 147 rpm, and the motor spins the geared drive plate directly, no loss of any kinetic energy, each pad turns at all times, no skipping of any kind.

    Not sure if 720 rpm is right but that seems awfully fast, I think that [rpm] would burnish the timber really quickly possibly leaving the surface too glass like, may be right for your machine i just don't know as i've never used any KT gear, i'm a Bona man, always have been, always will be, their equipment works really really well so i don't see and need to change...I'll be honest i was thinking of getting a Trio, but when Bona asked me if i'd test their new machine for them i didn't need asking twice.

    After using it for 3 weeks and seeing first hand what it can do, how it does it's business and the finish the machine imparts on wood floors I knew that i'd have to be mad to spend double the money on a Trio, when the new Flexisand does what it does in the way it does [hope that sounds ok]

    Not sure what sanding pad density is ??

    Ceramic discs performed best, Zirconia discs not too far behind, Silica Carbide did well as did the Ali Oxide one's, the machine is pretty kind on abrasives i have to say, all in all a class machine which performs brilliantly, i'm sure anyone who has got one of these babies will say the same.
    Gaz do the four sanding pads spin at 147rpm

  5. #35
    Member gazhugs has a spectacular aura about gazhugs has a spectacular aura about
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    I'm not sure but i don't think so looking at the geared drive plate [see picture] the drive centre will spin at 147 rpm, genuinely not sure what the gear ratio of the drive is as i'm not a mathematician, the machine isn't about speed or how fast this or that spins, its about how well it performs on any given floor, and take it from me [and Arron] that the performance of the Flexisand is nothing short of absolutely superb...

    IMG_3699.jpg

  6. #36
    Member TheFloorSander is on a distinguished road
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    Quote Originally Posted by gazhugs View Post
    I'm not sure but i don't think so looking at the geared drive plate [see picture] the drive centre will spin at 147 rpm, genuinely not sure what the gear ratio of the drive is as i'm not a mathematician, the machine isn't about speed or how fast this or that spins, its about how well it performs on any given floor, and take it from me [and Arron] that the performance of the Flexisand is nothing short of absolutely superb...

    Attachment 18
    Thanks gaz

  7. #37
    Floor Sanding Specialist Peak Flooring is on a distinguished road
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    Just had to bump this thread after using the power drive now for a few months. I have to say it does the best job ever. I thought that we used to leave wood flooring looking beautiful and it couldn't look any better, but with this new finishing sander we are now able to leave floors looking like glass. I don't know how it does it (well i do!) , but it is absolutely amazing.

    The trick that Gazhugs taught me was to belt to an 80 grit and then use 60 grit disks on the power drive and then 100 grits followed by some 150 grits and you will then have the smoothest, flatest floor you can possibly achieve. Also make sure that you hoover every last bit of grit up as the flexisand 1.5 power drive will leave marks in the floor if it goes over any grit.

  8. #38
    Member gazhugs has a spectacular aura about gazhugs has a spectacular aura about
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    Well said Arron, being honest the finest abrasives i use on my Flexisand is 120 grit and they leave the floors just ridiculously smooth, I mainly finish on 100 grits as [depending on the material being sanded] the quality/smoothness of the floors is awesome, good tip about hoovering...see you next week ;-))

  9. #39
    Junior Member Yasminsdad is on a distinguished road
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    Thinking of buying one...

    Have any of you done any staining after using the Flexisand? Does it leave any swirls? Also what zirc discs do you use gaz?
    I have tried the Sait zircs and they seem ok, also tried the Lagler discs but they were insanely sharp, only tried on the edger though and not on the Flexisand.

    Cheers.

  10. #40
    Floor Sanding Specialist Peak Flooring is on a distinguished road
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    We use the flexisand 1.5 all the time on every wooden floor staining, sealing and oiling. We use the Bona disks, both the zirconia and the silicone carbide disks. I personally think that silicone carbide give a smoother finish than zirconia, but both will give an excellent finish.

    We have had the problem of the Flexisand 1.5 leaving swirls like you say. The only way that we have been able to prevent this is to hoover the floor really well and the joints to remove all grit, etc. We believe that the swirls come from bits of grit and crap that hasn't been hoovered as it only takes 1 bit of grit to make the swirls. We also change the boards from the power drive plate to the standard plate and finish on a 150 grit mesh disk as I think that this makes the finish smoother and will not leave the swirls and/or remove any.

  11. #41
    Member gazhugs has a spectacular aura about gazhugs has a spectacular aura about
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    Quote Originally Posted by AM Flooring View Post
    We use the flexisand 1.5 all the time on every wooden floor staining, sealing and oiling. We use the Bona disks, both the zirconia and the silicone carbide disks. I personally think that silicone carbide give a smoother finish than zirconia, but both will give an excellent finish.

    We have had the problem of the Flexisand 1.5 leaving swirls like you say. The only way that we have been able to prevent this is to hoover the floor really well and the joints to remove all grit, etc. We believe that the swirls come from bits of grit and crap that hasn't been hoovered as it only takes 1 bit of grit to make the swirls. We also change the boards from the power drive plate to the standard plate and finish on a 150 grit mesh disk as I think that this makes the finish smoother and will not leave the swirls and/or remove any.
    Had some swirls on a floor we did last week [first time EVER] did the usual 36-60-100g on the Bona belt, vacuumed up, then 80g on the flexisand [didn't vacuum] it was ridiculously smooth on the 80g and not a swirl mark in sight, then went over the 40m2 rustic oak strip wideboards with a 120g on the flexisand, and you could just make out the swirl marks, they defo weren't there after the 80g so it must of been the lack of vacuuming between the 80 & 120...lesson learned...thankfully the marks didn't show at all when the 3 coat lacquer system went down...phew...
    Peak Flooring likes this.

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