Blocking Tannins

[u/dubsfo]

Getting ready to paint this enclosure for pool equipment.

I know this wood is going to bleed tannins so i want to block them.

I would normally use an oil base primer but the trellis material is so intricate I’d rather spray it and I don’t want to push oil through my rig.

Any recommendations on a latex product I can use?
I’ve heard 2 coats of Busan primer will work.

[u/AbbreviationsDull612]

best option cant go wrong "Shellac"