Containers forum→Recommendations for interior sealant for fir planter?

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Name: Zoë
Albuquerque NM, Elev 5310 ft (Zone 7b)
Region: New Mexico Herbs Salvias Composter Bee Lover Container Gardener
Bookworm Cat Lover Enjoys or suffers hot summers
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NMoasis
Sep 19, 2020 11:46 AM CST
I've acquired an unfinished fir planter box. I intend to stain the exterior. Can anyone recommend a non-toxic sealant or coating for the interior to help retard rot?

I've seen recommendations for Linseed oil (boiled or raw), various Tung oil products, and about five bio- or plant-based products. I'd like to avoid urethane.

Does anyone have experience with any of these products? Thoughts?
https://gardentabs.com/plant-s...

Thanks for suggestions.

Thumb of 2020-09-19/nmoasis/050419

For me, gardening is really just an excuse for playing in the dirt. Admittedly, plants are a satisfying by-product.
(Zone 9b)
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Bendek
Nov 11, 2020 10:14 PM CST
Tung oil products will do the job.
Name: Zoë
Albuquerque NM, Elev 5310 ft (Zone 7b)
Region: New Mexico Herbs Salvias Composter Bee Lover Container Gardener
Bookworm Cat Lover Enjoys or suffers hot summers
Image
NMoasis
Nov 12, 2020 12:02 AM CST
Thanks.
For me, gardening is really just an excuse for playing in the dirt. Admittedly, plants are a satisfying by-product.
Name: John
Hollywood, FL (Zone 10b)
serious plant addiction!
Herbs Cut Flowers Critters Allowed Cottage Gardener Composter Clematis
Canning and food preservation Brugmansias Bookworm Bluebonnets Beekeeper Bee Lover
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John2468
Nov 12, 2020 11:34 AM CST
I would recommend tung oil. I've had experience with it an it works well for wood planters Smiling
:)
Name: UrbanWild
Kentucky (Zone 6b)
Kentucky - borderline of 6a & 6b
Lover of wildlife (Black bear badge) Critters Allowed Native Plants and Wildflowers Miniature Gardening Organic Gardener Frogs and Toads
Dog Lover Birds Vegetable Grower Spiders! Hummingbirder Butterflies
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UrbanWild
Mar 18, 2021 10:24 AM CST
re linseed oil, raw will eventually go rancid and boiled has lots of chemical additives these days. True boiled linseed oil you will almost never see on the shelves anymore and it's insanely expensive.
Always looking for interesting plants for pollinators and food! Bonus points for highly, and pleasantly scented plants.

"Si hortum in bibliotheca habes, nihil deerit." [“If you have a garden and a library, you have everything you need.”] -- Marcus Tullius Cicero in Ad Familiares IX, 4, to Varro. 46 BCE
[Last edited by UrbanWild - Mar 18, 2021 10:24 AM (+)]
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