I only use sealers on spindle blanks, which are more rolling pin sized. For that, Titebond 3, which has the longer open time. It soaks in a bit and is permeable so water can get out, slowly. I always have a gallon of it around.

I did hear of some one who would flood the ends of logs with latex paints and then slap some plastic or thick paper over the paint. That offered a better seal than just the paint...

robo hippy

This is from UC coatings Multimedia File Viewing and Clickable Links are available for Registered Members only!!  You need to or

"Surface Preparation
All areas to be coated should be clear of dirt and debris.

Application
• Apply a heavy film of ANCHORSEAL 2 using a brush, roller or
sprayer until it begins to drip slightly.
• For optimal coverage, use a gas engine, electric, air operated or
backpack sprayer from U·C Coatings.
• If using spray equipment other than those sold by U·C Coatings,
use 0.21”/0.55 mm tip or larger.
• Logs larger than 24”/60 cm in diameter will require a heavier
coating, or two coats must be applied within a 15 minute period."

I recently went through about 8 gallons of this. I had to add or re-coat some pieces the next day, so far there have been no issues with adhesion.
That's just my experience, YMMV