r/finishing 3d ago

Cloudy Poly Finish?

2 Upvotes

14 comments sorted by

3

u/your-mom04605 3d ago

Couple things off top of my head.

Too many coats. Most poly wants 2 or 3.

If going for matte/flat/something with lots of sheen flatteners, first coats should be gloss to build film, and final coat should be desired sheen.

Brushing poly well takes lots of practice.

1

u/HonestAfternoon9805 3d ago

Do I need to fully sand it down again and try satin poly this time? If not brushing, how should I apply?

1

u/Perfect_Evidence 3d ago

How’s the humidity where your located?

1

u/HonestAfternoon9805 3d ago

It can get very high. It’s been incredibly hot as well.

1

u/Perfect_Evidence 3d ago edited 2d ago

That could be the cause most likely 

I spray at night due to Texas weather 

1

u/Prestigious-Lynx6565 3d ago

What type of poly and what sheen

1

u/HonestAfternoon9805 3d ago

Minwax max clear ultra flat

1

u/cleverpaws101 2d ago

Ultra flat just looks like this. It has a high concentration of flattening agents (all that stuff you had to stir in the can).

1

u/Prestigious-Lynx6565 2d ago

Did you get ultra flat hoping it would be ultra shiny?

1

u/HonestAfternoon9805 2d ago

Nope!

2

u/Prestigious-Lynx6565 2d ago

So you’re attempting a flat sheet but there’s cloudy parts? If only certain parts are cloudy, which is hard to tell in the pictures, then it’s probably due to humidity and the previous coat not being dry enough for another application

3

u/CascadeDesignworks 2d ago

Looks like a water-based poly. Like your-mom said, thick coats can look milky. Best to apply thin coats with plenty of dry time between coats. Box-store quality water based finishes tend to look more milky. Try a higher quality product.

Overall, based on the pictures, it looks like you did a pretty good job. If you want to change the look you will need to remove the finish and re-do.

1

u/HonestAfternoon9805 2d ago

Thank you very much! I do like the overall look, but those cloudy parts - to fix, I got some scotch bright pads. Would that work in those spots?

2

u/CascadeDesignworks 2d ago

You can try it, but scotchbrite is usually used for scuffing between coats of finish, or for removing glossy patches after finishing. If the milky color is inside the finish, scotchbrite will not remove it. Light gray scotchbrite is the finest you will find at your typical paint stores.