If you paid for Traffic, then the contractor owes you the difference in product cost. Yes, a coat of Traffic can be applied over Mega. However, Mega or any other existing coat needs to be be properly prepared to be successful. Just so you know...there is Traffic and then Traffic HD...and yes Traffic HD costs more than Traffic. I just returned from a job I did with Traffic that is eight years in service in an active house; floors, steps and trim. Except for the usual damage from denting, the floors look fabulous. Some will tell you that Traffic is overkill...well that overkill looks awfully good after eight years. Most of the contractor complaints regarding Bona products resides in the higher product costs and recent Bona marketing practices in the U.S.

I know this is an old thread but I felt the need to reply. We used Bona Traffic 5 years ago using spice brown stain followed by the Satin poly HD 2 part system. I remember back then it stated the darker color allow 12 hour dry time which we did. Then we applied two coats of finish. I recall that it took longer then 2 weeks to fully set and get solid but eventually it did and worked out great. Fast forward we got a new house. Great wood floors. Again we refinished them using the Bona HD traffic 2 part system in semi gloss. We used a lighter finish this time which stated on the stain can stated to allow 2-3 hours drying time in normal humidity. So this time around we followed the instructions and allowed 3 hours for the stain to dry on a lovely 75 degree sunny day. I did not go heavy on the stain and I would use a dry cloth to buff out the excess as I went along. Everything looked great. We have experience with the sanding so we spent roughly 10 hours using the different grits down to the 100 grit as the final step as instructed. Floors were lovely and down to the bare unadultured wood. We then vacuumed them and got every last bit of dust off using special footies as to not contaminate the floor with our feet. We could not have followed the instructions more perfectly. In fact we researched for a week and spoke to a floor refinishing company just to insure we did things 100% correctly. Well here we are now, 12 days in and I can scratch this off with my nail in many places. I am not talking just a scratch in the wood, but a peeling of the top coat scraping down to and exposing bare wood. I am sick to my stomach. The floor will not last. It is supposed to be strong like for a gym. This would not hold up to a room of infants. We luckily were finishing in a vacant home so nothing was placed on the floor for 10 days. It's not even worth moving all of our heavy furniture and starting over so I am going to put laminate floors over top of this and be done with it. I called Bona and they told me that they suggest 8 hour stain drying time. Well then why the heck would you state on your product 2-3 hours? Human error on my part? I think not I did everything that Bona said. Disgusted with the product. I should have used a cheaper oil base from the big box store. Biggest regret of my life. Perhaps Bona stored the product in a cold warehouse? Maybe it was a faulty batch with bad hardener? I have no idea but it behaves like something that did not have hardener. However I checked the unused bottle the next day and it was solidifying in the jug. Something failed and I can't understand what because I followed Bona instructions to a T.

i just got the matte finish on plain old (new) white oak in my kitchen remodel. They used amber stain because they said it would match rest of house best (old white oak floors that have yellowed). Even though I might have preferred lighter I was OK with that. But decided to hold my ground and asked them to use the matte finish which the floor guys were sort of against. I love the finished product!! It's super smooth, no shine and makes a more modern clean look. It dried nearly instantaneously and they did the whole thing in a day from sanding to top finish. Amazing what new products and technology have done to transform floor finishing. (I last had floors done in around 2001 - big mess). I sure hope this stands up because I love the look. I recommend it. And no smell at all after it dries (same day!)

I just wanted to post a status - I spoke to Bona customer service, and they said that for their Traffic line, the semigloss is similar to satin in other manufacturer's finish, whereas the satin is similar to matte in other manufacturer's finish. He couldn't say for certain the difference in HD vs gular Traffic since it might depend on the wood species, but he said it shouldn't be that different.