Can it be used on green treated lumber

Pressure treated lumber has to be dry.

Can you use a regular wood stain after applying?

Yes the clear MARINE can be painted or stained. Or you can purchase a tint for SEAL-ONCE and use the MARINE as a sealer and stain. MARINE Features: • Clear formula can be painted or stained after treatment • Tinted formula provides additional UV protection • Available in 11 semi-transparent tint colors • Eco-friendly, Non-toxic; will not harm pets, plants, people or marine life • Ultra-low VOC, Water based • Can be applied around or over fresh or salt water • Flexible, breathable barrier, Stabilizes & protects wood • Prevents warping, cupping, wood rot & decay • Resistant to salt water spray • Prevents mold, mildew & algae growth • Soap and water cleanup

I want to use this on a 6x6 wood beam at the opening to my walk-in shower (floor to ceiling). No direct shower spray. Will this seal it?

Yes you may use it for this specific application. As suggested in a comment down bellow, you would want to make sure that it is fully cured before using the shower. Typically it would take 48 hours to cure but it may take longer depending on the environment.

does this work for the interior of a sauna , safe to sit on?

It dries to a hard, smooth finish, is non toxic and nice to look at. Would be safe to sit on...other types of recreation may require caution.

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Marine Waterproof Wood Sealer and Stain, Natural, 1 Gallon | Waterproof Sealant, Wood Stain and Sealer in One

Product ID: 296285150

Details

Brand
Seal-Once
Color
Natural
Material
Polyurethane
Model Name
Marine
Surface Recommendation
Wood

🌊10-year vertical water resistance

🧴Water-based, ultra-low VOC formula

☀️UV-stable, fade-resistant coating

$244.31

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Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌿 Seal your wood’s future with nature-proof confidence!

ECO FRIENDLY SAFE - Non-toxic, user-safe formula that’s gentle on pets, plants, and aquatic life during application.
ALL IN ONE WOOD SAVIOR - Seals, stains, and waterproofs in a single fast-drying coat for effortless maintenance.
ULTIMATE MARINE SHIELD - Protects wood from saltwater spray and harsh elements with a durable, UV-stable barrier.
NATURAL AGING NO DECAY - Allows wood to gracefully age to a rich silver-gray while preventing rot, mold, and mildew.
LONG LASTING PERFORMANCE - Warranted protection against water damage for up to 10 years on vertical surfaces and 6 years on horizontal.

Seal-Once Marine Waterproof Wood Sealer and Stain is a premium water-based polyurethane formula designed to protect outdoor wood surfaces like decks, docks, and porches from water damage, UV rays, and salt spray. It penetrates wood fibers to create a flexible, breathable barrier that lasts up to 10 years vertically and 6 years horizontally, while being safe for the environment and user-friendly with ultra-low VOCs.

Specifications

ASIN	B08WNBKFYK
Base Material	Wood
Best Sellers Rank	#4,393 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Household Stains
Brand	Seal-Once
Brand Name	Seal-Once
Coating Description	Water-based
Color	Natural
Compatible Material	Wood
Container Type	Jug
Customer Reviews	4.3 out of 5 stars 2,429 Reviews
Finish Types	Natural
Included Components	Outdoor Stain
Item Dimensions	17 x 14 x 14 inches
Item Weight	3.98 Kilograms
Liquid Volume	1 Gallons
Manufacturer	U C COATINGS
Manufacturer Part Number	SOMARINEWOOD
Material	Polyurethane
Material Type	Polyurethane
Model Name	Marine
Model Number	SO7620FBA
Number of Items	1
Paint Type	Water Based
Recommended Uses For Product	Thermally modified wood, boat docks, flooring, siding, porch, decks, retaining walls
Size	1 Gallon
Style Name	Outdoor
Surface Recommendation	Wood
UPC	759126974022
Unit Count	128 Fluid Ounces
Warranty Type	Time-based (Limited)

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$244.31

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

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