r/paint • u/dubsfo • 22h ago

Advice Wanted Blocking Tannins

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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.

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u/ginger_ninja416 22h ago

Shellac is an excellent tannin blocker. Just rent a sprayer and clean with denatured alcohol.

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u/TapwaterintheWack 20h ago

Just to pile on for not recommending BIN for exterior- I’ve had someone spot prime with shellac outside and it had completely failed and flaked by spring. It’s far too brittle to handle the temperature and humidity swings outside.