Dull spots in finish

Does anyone know what the cause of dull pin-head spots that have developed in my finish after a month? I have a number of bowls I've seen this on, most notably on the walnut ones. The finish is Watco, followed by buffing on a wheel with Carnuba wax. I noticed these small dull spots appear after a month on the inside of the bowls, but not on the outside (or downward facing sides). They gathered dust, but no moisture, during this time. Looking for understanding of the cause, and how to avoid. Thanks!

 

I've had carnauba wax water spot similar to that. Strip the wax with mineral spirits and use microcrystalline wax and see if that fixes it.

 

I've had a similar experience with Richard. Doing outdoor shows many years ago, just the moisture in the air would put spots on the interior of my bowls that were buffed with Carnuba Wax. They were MOST noticeable in my walnut bowls, too.

 

thanks Richard! So you think those pinhead spots are just from moisture in the air?

Do you have a recommended source for microcrystalline wax? Can I apply it the same way with a buffing wheel?

thanks again

 

I like Renaissance Wax as a microcrystalline wax

 

Just about every woodworking supply sells Renaissance. It's pricey, but the small can lasts a LONG time. I don't know about power buffing it, never have. Wipe on, buff with soft cloth.

 

Thanks y’all, I’ll give Renaissance wax a try!