Thank you so much for such a thorough explanation of the Bio Poly and Nano Tech products. It is really helpful!
For now, we may go with 1-3 coats of Bio Poly and at a later moment use the Nano Tech. We are interested in finding out if the Bio Poly truly needs a huge machine buffer to work it into the floor or if we could use something smaller instead. Online we see many battery operated, small hand buffers- but are unsure if these are only used to polish cars or if they can replace a hardwood floor buffer. Do you happen to know if any hand tools can replace a huge buffer?
We don't mind if it takes extra time.
Also, what type of brush would allow us to get the smoothest finish?
Hand buffers haven't worked out very well from my experience. Floor machines are the easier way despite the apparent bulkiness of them.
It's fine to apply by hand. I would use one of the Floor Finish Applicator pads online to mop it on and work it into the wood. Then someone can come behind with a dry towel and wipe it down. This can be repeated three times with 150-220 grit orbital sander between coats. I've done floors like this. It's not hard. Just takes a little longer than a machine. We apply a coat a day for as many coats as the wood will take. Red Oak Flooring usually won't take more than 2-3 coats of Bio Poly Natural since it is a very high solids coating and the wood fiber cells become well saturated quickly.
I love this look. To me it's the perfect floor but sometimes higher traffic sections call for a top coat of NanoTech, Mountain or Easy Safe 1k.
The best brush is a high quality 3" natural fiber brush. I tend towards Wooster but if the store has better brands that's what I get. BUT we don't brush Bio Poly on and leave it. It's brushed on and wiped down. This will build to a what appears to be a film but it's not, it's the wood fiber cells themselves becoming fully saturated, nourished and reflective internally.
Badger Hair is the best brush for oils if forming a film. I don't like using these though since it encourages cruelty. Wire brushing a fine bristle will give a Badger Hair feel to other bristles as long as they are soft enough.
Note: We are careful to wipe Bio Poly down well after the 2nd and 3rd coats. So no sticky film can form. The resins need wood cellulose fiber to react properly within the wood. If the finish is left on the surface it will take a long time to dry and feel tacky until then.
Tom Rioux founded Earthpaint after becoming severely ill as a professional paint contractor.