Polyaspartic on plywood floors?

[Massination]

I have a unique situation where I'm looking to possibly coat 1000 sq ft floor with polyaspartic coating (the new and better alternative to epoxy). Its about 50% concrete slab for part of it and 50% plywood subfloor for the other. All the companies in my area are using polyaspartic now instead of epoxy. But none of them are giving me a good vibe that they know what they're doing when it comes to installing on a plywood subfloor. One company was like "oh yeah, it would work great, but we just cant give you a warranty on the plywood subfloor part. But we can warranty the concrete floor." One other company flat out said no. And another company said "We can do it if you really want us to, but no warranty on it, and it might be ok and maybe it will last a long time, or maybe it wont." Has anyone on here tried it or know if its a terrible idea or good idea? I really want to create one seamless looking floor if i can. The plywood subfloor and slab are level with each other. Room will be used for an appliance showroom. Some sliding of appliances around will inevitably happen.

 

[Youngandfree]

It sure sounds like a terrible idea.

 

[benwah]

It will adhere at first, but because of the deflection within the plywood or OSB, it will crack and de-laminate all over the place. Not really suggested. You could always pour a self-leveling synthetic gypsum like Schonox APF on top of the plywood to help with all of that. Still may crack in a place or two down the road, but would be much much stronger of a floor.

 

[FJ4FUN]

Polyaspartics go down thin and fast THAT is why "All the companies in my area are using polyaspartic now instead of epoxy." It has nothing to do with the notion "(the new and better alternative to epoxy)" There's nothing "new" about polyaspartics and , yes, it is an alternative to epoxy but many, including me, would challenge the idea that it is "better". Better for an applicator's profit margin? For sure. Better from an applicator's throughput? For sure. Better for the consumer? hmmmmmmm....not so sure about that. It would be highly dependent on the location and anticipated use of your floor.
"But none of them are giving me a good vibe that they know what they're doing when it comes to installing on a plywood subfloor." or... maybe they DO know what they're doing when it comes to installing polyaspartic on a plywood floor? If they refuse to warranty it I think you have your answer.

Just saying....

 

[Garage Flooring]

We have had several people use Polyurea on wood floors. The problem is it soaks in. It expands and contracts better than most epoxy but if there are massive temperature changes it can be an issue. Most of the time when you see that done it's in a smaller area. It could be tougher on a larger area. I would tend to agree with @benwah

@FJ4FUN says " If they refuse to warranty it I think you have your answer." He and I come from different backgrounds and have different opinions about the value of poly based products vs epoxy-based products. That said here, we agree. I would not pay to have something installed that was not going to have a warranty.