OK I explain. It is a floating floor what we call in the UK engineered floor, so it is not solid throughout but a thickness of the wood mounted on a plywood base. It is a Malaysian wood, not so hard, so I suppose high heels could dent it perhaps, it is not the hardest. It is a click system not requiring glue, interesting. Now from Malaysia it says it has five factory coatings of which some contain aluminium oxide. It got worn out over the years. So a year ago I sanded the wood with the machines with the correct paper and vacuumed well. Then I applied one coat of Bona Traffic silk, you know the glossy one. I then noticed a number of parts were very coarse to the touch. So after some hours I sanded again with slightly finer paper but still coarse. Now I applied again Bona. Once again certain areas were coarse to the touch and you could see stains. So now I did a final very fine sanding but this was by hand with very fine paper particularly in the areas affected. It took me hours. Then I applied the third coat. I called the Bona representative who was at a loss!!! He gave me a bottle of Bona "refresh" it is a type of product to do another pass over. I applied it to the worse parts of the floor. Although one could see areas which were coarse to the touch and which did not look quite right the shine was sufficient to fool guests for Christmas. Now I am exactly one year on. In those area I mentioned there are now black marks. I attach some photos of the present situation with example of the black marks. (sorry I do not know how to create a new thread). I want to sand it and apply Bona again before New Year when my mother is visiting, my wife will just about tolerate me sanding on the 27th Dec. I had the suspicion it was the Bona product maybe the bottle I bought was old or had been exposed to low temperatures where I bought it from but the Bona representative told me it was very unlikely to be the case.

As stated above, mixing manufacturers can be tricky. DuraSeal works well with water based finishes because DuraSeal MAKES water based finishes. Minwax does not. Minwax produces oil based finishes that are illegal in 11 states. Bona is MUCH more expensive than either DuraSeal and most definitely more than Minwax. I am extremely pleased to see a professional reach for Bona stain for Bona Finish. That tells me all I need to know. @Design2 girl - If you are getting used to the colour (as it is) then feel free to see if a small discount can be given for leaving it in place. If you feel this is not the colour you want to live with, then you will need to have it sanded off and start fresh. A double application of stain is a NO-NO in the flooring industry. The second coat can and will PREVENT bonding of the finish to the wood! That means you run the risk of the floor pealing like a sun burn! Yep. In a few days to a few months the whole thing could slough off like snake skin. Not pretty. Personally I like the colour as it is right now. This mid-tone cool brown (not much yellow/orange) is very desirable. I would put down some satin finish over top and enjoy a very handsome floor.

As others have suggested, the sanding job was imperfect. The darker areas are most likely left-over finish that was never removed completely. If you bring in a professional, s/he *MIGHT be able to sand/patch specific areas. Might. No guarantees. And if this is present on every wall in every room, then the 'sand and patch' isn't going to be possible. It is faster and cheaper (labour costs for a professional) to have them sand it all down and start again. If this is left over finish then it is underneath the new application. To deal with it properly you must remove everything ON TOP so that you can sand down to raw wood once again. Sigh. Yes that means you need to do a sand/refinish once again. Edge sanding is a real b!tch to deal with. As you have discovered. It must be done in a specific way with machines (palm sander anyone)....which must follow the same grit levels as your big machine. That means if you used the 80, 100, 120 grit system on your big machine...then the palm sander must have the same 3 grit levels used as well...in the same sequence. The next question you are going to ask is, "Can't I just leave it if it doesn't bother me?" The answer is simple: "Sure....BUT you could get finish failure because of the two different chemicals decided not to bond properly." It is your decision. You can leave it as-is for now. You can move back into the space and hope for the best. The best case scenario is you cover everything up (because the issue is at the walls = furniture covers most of it) and you don't notice it for the next 20 years. Worst case scenario is it starts to bubble and peel in a short amount of time (less than 1 year) and it requires a full sand and refinish very quickly after you move all your furniture back in. It's your call. It is your home and your floor. Right now you have the benefit of an empty home and (probably) still have access to all the equipment needed. To achieve a full fix is very simple right now. If you leave it until later you will have to move everything out of the way again...

Yes. I'm pretty sure I used the Bona TDS from Mega One. Maybe you misconstrued my use of the word "traffic", as in "foot traffic". If I was referring to Bona Traffic I would have capitalized the T, but your initial post clearly mentioned Mega One. bona-mega-one-tds-7-21.pdf