Comptability of water based and oil based wipe on poly?

[woodartist]

Can you put a final coat of oil based poly over prior coats of water based poly.

Which is preferred for use on model boats?

[Jsk]

I'd be leery of doing that. I've always read that you can put oil based paints over acrylics but not the other way around. The reason being that oil based paints will continue to off-gas over time. This traps pockets of gas which cannot permeate through the acrylic on top. However, acrylics don't (apparently) off-gas so the oil seems to sit on top just fine.

 

Still... I'd think choosing one or the other and sticking with it would be the better way to go.

[Gregory]

7 hours ago, Jsk said:

I've always read that you can put oil based paints over acrylics but not the other way around.

Jeff,

Putting oil based poly over acrylic is what Woodartist asked about.

 

So it sounds like you think it should be OK.

[woodartist]

tks

[Jsk]

On 7/14/2024 at 7:35 PM, Gregory said:

So it sounds like you think it should be OK.

Yeah, personally, I'd try it but I'd have a contingency plan in place. Having said that, I'm not sure what the difference is between poly and acrylic and how the passage of time would affect things. Maybe someone with furniture refinishing experience would have better insights?

 

 

[paul ron]

yes, oil over water is ok but not the other way around.